953 lines
139 KiB
XML
953 lines
139 KiB
XML
<document ID-DOI="10.5281/zenodo.190129" ID-GBIF-Dataset="73f2c6ff-3435-45e6-a8b7-c5f4ac5d4ebd" ID-ISSN="1175-5326" ID-Zenodo-Dep="190129" checkinTime="1461107625334" checkinUser="plazi" docAuthor="Salgado, Leonardo & Coria, Rodolfo A." docDate="2009" docId="039F003BFFDD697CC6BE951EFC7AA0A0" docLanguage="en" docName="zt02222p016.pdf" docOrigin="Zootaxa 2222" docStyle="DocumentStylede.uka.ipd.idaho.easyIO.settings.Settings@1cd3b138" docStyleName="zootaxa.2007.journal_article" docTitle="Barrosasaurus casamiquelai Salgado & Coria, 2009, sp. nov." docType="treatment" docVersion="9" lastPageNumber="11" masterDocId="FFA67843FFDF6976C6299337FFA0A13A" masterDocTitle="Barrosasaurus casamiquelai gen. et sp. nov., a new titanosaur (Dinosauria, Sauropoda) from the Anacleto Formation (Late Cretaceous: early Campanian) of Sierra Barrosa (Neuquén, Argentina)" masterLastPageNumber="16" masterPageNumber="1" pageNumber="3" updateTime="1636759538288" updateUser="ExternalLinkService">
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<mods:titleInfo>
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<mods:title>Barrosasaurus casamiquelai gen. et sp. nov., a new titanosaur (Dinosauria, Sauropoda) from the Anacleto Formation (Late Cretaceous: early Campanian) of Sierra Barrosa (Neuquén, Argentina)</mods:title>
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</mods:titleInfo>
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<mods:name type="personal">
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<mods:role>
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<mods:roleTerm>Author</mods:roleTerm>
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</mods:role>
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<mods:namePart>Salgado, Leonardo</mods:namePart>
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</mods:name>
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<mods:name type="personal">
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<mods:role>
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<mods:roleTerm>Author</mods:roleTerm>
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</mods:role>
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<mods:namePart>Coria, Rodolfo A.</mods:namePart>
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</mods:name>
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<mods:typeOfResource>text</mods:typeOfResource>
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<mods:relatedItem type="host">
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<mods:titleInfo>
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<mods:title>Zootaxa</mods:title>
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</mods:titleInfo>
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<mods:part>
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<mods:date>2009</mods:date>
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<mods:detail type="volume">
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<mods:number>2222</mods:number>
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</mods:detail>
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<mods:extent unit="page">
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<mods:start>1</mods:start>
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<mods:end>16</mods:end>
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</mods:extent>
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</mods:part>
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</mods:relatedItem>
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<mods:classification>journal article</mods:classification>
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<mods:identifier type="DOI">10.5281/zenodo.190129</mods:identifier>
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<mods:identifier type="GBIF-Dataset">73f2c6ff-3435-45e6-a8b7-c5f4ac5d4ebd</mods:identifier>
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<mods:identifier type="ISSN">1175-5326</mods:identifier>
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<mods:identifier type="Zenodo-Dep">190129</mods:identifier>
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</mods:mods>
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<treatment ID-DOI="http://doi.org/10.5281/zenodo.5685070" ID-GBIF-Taxon="119623526" ID-Zenodo-Dep="5685070" LSID="urn:lsid:plazi:treatment:039F003BFFDD697CC6BE951EFC7AA0A0" httpUri="http://treatment.plazi.org/id/039F003BFFDD697CC6BE951EFC7AA0A0" lastPageId="10" lastPageNumber="11" pageId="2" pageNumber="3">
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<subSubSection pageId="2" pageNumber="3" type="nomenclature">
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<paragraph blockId="2.[151,598,1576,1637]" box="[151,598,1576,1603]" pageId="2" pageNumber="3">
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<heading bold="true" box="[151,598,1576,1603]" fontSize="11" level="1" pageId="2" pageNumber="3" reason="1">
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<emphasis bold="true" box="[151,598,1576,1603]" pageId="2" pageNumber="3">
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<taxonomicName box="[151,497,1577,1603]" class="Reptilia" genus="Barrosasaurus" higherTaxonomySource="CoL" kingdom="Animalia" order="Dinosauria" pageId="2" pageNumber="3" phylum="Chordata" rank="species" species="casamiquelai" status="sp. nov.">
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<emphasis bold="true" box="[151,497,1577,1603]" italics="true" pageId="2" pageNumber="3">Barrosasaurus casamiquelai</emphasis>
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</taxonomicName>
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<taxonomicNameLabel box="[504,598,1576,1602]" pageId="2" pageNumber="3" rank="species">sp. nov.</taxonomicNameLabel>
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</emphasis>
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</heading>
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</paragraph>
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<paragraph blockId="2.[151,598,1576,1637]" box="[151,290,1611,1637]" pageId="2" pageNumber="3">
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<figureCitation box="[151,290,1611,1637]" captionStart-0="FIGURE 3" captionStart-1="FIGURE 4" captionStart-2="FIGURE 5" captionStart-3="FIGURE 6" captionStartId-0="3.[151,256,1048,1072]" captionStartId-1="4.[151,256,1038,1062]" captionStartId-2="5.[151,257,1698,1722]" captionStartId-3="6.[151,255,622,646]" captionTargetBox-0="[160,1428,357,1019]" captionTargetBox-1="[153,1430,276,1010]" captionTargetBox-2="[204,1387,214,1658]" captionTargetBox-3="[159,1417,206,576]" captionTargetId-0="figure@3.[151,1435,349,1024]" captionTargetId-1="figure@4.[151,1436,271,1011]" captionTargetId-2="figure@5.[192,1398,194,1675]" captionTargetId-3="figure@6.[151,1436,194,598]" captionTargetPageId-0="3" captionTargetPageId-1="4" captionTargetPageId-2="5" captionTargetPageId-3="6" captionText-0="FIGURE 3. Barrosasaurus casamiquelai gen. et sp. nov., holotype (MCF-PVPH- 447 / 3). Anterior dorsal vertebra in anterior (A) and left lateral (B) views. Abbreviations: acpl, anterior centroparapophyseal lamina; al, accesory lamina; apcdl, accesory posterior centrodiapophyseal lamina; d, diapophysis; nc, neural canal; p, pleurocoel; pcdl, posterior centrodiapophyseal lamina; pcpl, posterior centroparapophyseal lamina; pp, parapophysis; ppdl, paradiapophyseal lamina; prsl, prespinal lamina; prz, prezygapophysis; sf, small fossa; sprl, spinoprezygapophyseal lamina; tprl, intraprezygapophyseal lamina. Scale bar equals 10 cm." captionText-1="FIGURE 4. Barrosasaurus casamiquelai gen. et sp. nov., holotype (MCF-PVPH- 447 / 1). Posterior dorsal (seventh or eighth) vertebra in anterior (A), right lateral (B) and posterior (C) views. Abbreviations: acpl, anterior centroparapophyseal lamina; alp, aliform process; apcdl, accessory posterior centrodiapophyseal lamina; aspdl, anterior spinodiapophyseal lamina; d, diapophysis; nc, neural canal; pcdl, posterior centrodiapophyseal lamina; pcpl, posterior centroparapophyseal lamina; posl, postspinal lamina; pp, parapophysis; ppdl, paradiapophyseal lamina; prsl, prespinal lamina; prz, prezygapophysis; spol, spinopostzygapophyseal lamina; sprl, spinoprezygapophyseal lamina; tprl, intraprezygapophyseal lamina. Scale bar equals 10 cm." captionText-2="FIGURE 5. Barrosasaurus casamiquelai gen. et sp. nov., holotype (MCF-PVPH- 447 / 2). Posterior dorsal (ninth or tenth) vertebra in anterior (A), posterior (B), left (C), and right lateral (D) views. Abbreviations: acpl, anterior centroparapophyseal lamina; alp, aliform process; apcdl, accesory posterior centrodiapophyseal lamina; aspdl, anterior spinodiapophyseal lamina; f, fossa; nc, neural canal; p, pleurocoel; pcdl, posterior centrodiapophyseal lamina; pcpl, posterior centroparapophyseal lamina; podl, postzygodiapophyseal lamina; posl, postspinal lamina; prsl, prespinal lamina; prz, prezygapophysis; pz, postzygapophysis; r, rib; spol, spinoposztzygapophyseal lamina; sprl, spinoprezygapophyseal lamina; tl, transverse lamina. Scale bar equals 10 cm." captionText-3="FIGURE 6. Barrosasaurus casamiquelai gen. et sp. nov., holotype. Dorsal centra in ventral view: A, MCF-PVPH- 447 / 3; B, MCF-PVPH- 447 / 1; MCF-PVPH- 447 / 2. Abbreviation: vk, ventral keel. Scale bar equals 10 cm." httpUri-0="https://zenodo.org/record/190132/files/figure.png" httpUri-1="https://zenodo.org/record/190133/files/figure.png" httpUri-2="https://zenodo.org/record/190134/files/figure.png" httpUri-3="https://zenodo.org/record/190135/files/figure.png" pageId="2" pageNumber="3">
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Figures
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<number box="[246,290,1611,1637]" pageId="2" pageNumber="3" value="4.5" valueMax="6.0" valueMin="3.0">3–6</number>
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</figureCitation>
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</paragraph>
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</subSubSection>
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<subSubSection pageId="2" pageNumber="3" type="materials_examined">
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<paragraph blockId="2.[151,1437,1688,2024]" pageId="2" pageNumber="3">
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<emphasis bold="true" box="[151,265,1688,1714]" pageId="2" pageNumber="3">
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<typeStatus box="[151,265,1688,1714]" pageId="2" pageNumber="3">Holotype</typeStatus>
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</emphasis>
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. MCF-PVPH-
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<number box="[446,491,1689,1715]" pageId="2" pageNumber="3" value="447.0">447</number>
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/
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<number box="[500,537,1689,1715]" pageId="2" pageNumber="3" value="2.0" valueMax="3.0" valueMin="1.0">1–3</number>
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, one anterior dorsal (MCF-PVPH-
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<number box="[950,994,1689,1715]" pageId="2" pageNumber="3" value="447.0">447</number>
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/
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<number box="[1003,1015,1689,1715]" pageId="2" pageNumber="3" value="3.0">3</number>
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) and two posterior dorsal vertebrae (MCF-PVPH-
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<number box="[322,366,1728,1754]" pageId="2" pageNumber="3" value="447.0">447</number>
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/
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<number box="[375,384,1728,1754]" pageId="2" pageNumber="3" value="1.0">1</number>
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and MCF-PVPH-
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<number box="[600,643,1728,1754]" pageId="2" pageNumber="3" value="447.0">447</number>
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/
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<number box="[652,665,1728,1754]" pageId="2" pageNumber="3" value="2.0">2</number>
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) belonging to a single individual.
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</paragraph>
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</subSubSection>
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<subSubSection pageId="2" pageNumber="3" type="etymology">
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<paragraph blockId="2.[151,1437,1688,2024]" pageId="2" pageNumber="3">
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<emphasis bold="true" box="[198,339,1766,1792]" pageId="2" pageNumber="3">Etymology.</emphasis>
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In honor of the late Rodolfo Casamiquela (
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<date box="[851,987,1766,1792]" pageId="2" pageNumber="3" value="1932" valueMax="2008">
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<number box="[851,987,1766,1792]" pageId="2" pageNumber="3" value="1970.0" valueMax="2008.0" valueMin="1932.0">1932–2008</number>
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</date>
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) for his important contributions to the development of Argentinean Earth Sciences.
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</paragraph>
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</subSubSection>
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<subSubSection lastPageId="3" lastPageNumber="4" pageId="2" pageNumber="3" type="materials_examined">
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<paragraph blockId="2.[151,1437,1688,2024]" lastBlockId="3.[151,1437,152,294]" lastPageId="3" lastPageNumber="4" pageId="2" pageNumber="3">
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<emphasis bold="true" box="[198,523,1843,1869]" pageId="2" pageNumber="3">
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<typeStatus box="[198,259,1843,1869]" pageId="2" pageNumber="3">Type</typeStatus>
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locality and horizon.
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</emphasis>
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Sierra Barrosa (locality coordinates:
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<geoCoordinate box="[960,1127,1843,1869]" direction="south" orientation="latitude" pageId="2" pageNumber="3" precision="15" value="-38.84083">
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<number box="[960,991,1843,1869]" pageId="2" pageNumber="3" value="38.0">38</number>
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°
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<number box="[1009,1043,1843,1869]" pageId="2" pageNumber="3" value="50.0">50</number>
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’
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<number box="[1055,1089,1843,1869]" pageId="2" pageNumber="3" value="27.0">27</number>
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’’ S
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</geoCoordinate>
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,
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<geoCoordinate box="[1140,1318,1843,1869]" direction="west" orientation="longitude" pageId="2" pageNumber="3" precision="15" value="-68.84111">
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<number box="[1140,1171,1843,1869]" pageId="2" pageNumber="3" value="68.0">68</number>
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°
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<number box="[1188,1222,1843,1869]" pageId="2" pageNumber="3" value="50.0">50</number>
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’
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<number box="[1234,1268,1843,1869]" pageId="2" pageNumber="3" value="28.0">28</number>
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’’ W
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</geoCoordinate>
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; Neuquén Province,
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<collectingCountry box="[271,391,1882,1908]" name="Argentina" pageId="2" pageNumber="3">Argentina</collectingCountry>
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;
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<figureCitation box="[404,471,1882,1908]" captionStart="FIGURE 1" captionStartId="1.[151,255,1869,1893]" captionTargetBox="[152,1434,777,1843]" captionTargetId="figure@1.[152,1435,777,1844]" captionTargetPageId="1" captionText="FIGURE 1. Location map." httpUri="https://zenodo.org/record/190130/files/figure.png" pageId="2" pageNumber="3">
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Fig.
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<number box="[458,471,1882,1908]" pageId="2" pageNumber="3" value="1.0">1</number>
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</figureCitation>
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), lower Anacleto Formation (Upper Cretaceous, lower Campanian;
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<bibRefCitation author="Ramos" box="[1279,1431,1882,1908]" pageId="2" pageNumber="15" refString="Ramos, V. (1981) Descripcion geologica de la Hoja 33 C, Los Chihuidos Norte, Provincia del Neuquen. Servicio Nacional de Mineria y Geologia, Boletin 182, 1 - 103." type="journal article" year="1981">
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Ramos
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<number box="[1369,1431,1882,1908]" pageId="2" pageNumber="3" value="1981.0">1981</number>
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</bibRefCitation>
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;
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<bibRefCitation author="Dingus" box="[151,388,1921,1947]" pageId="2" pageNumber="15" refString="Dingus, L., Clarke, J., Scott, G. R., Swisher, C. C., Chiappe, L. M. & Coria, R. A. (2000) Stratigraphy and magnetostratigraphic / faunal constraints for the age of sauropod embryo-bearing rocks in the Neuquen Group (Late Cretaceous, Neuquen Province, Argentina). American Museum Novitates, 3290, 1 - 11." type="journal article" year="2000">
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Dingus
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<emphasis box="[248,304,1921,1946]" italics="true" pageId="2" pageNumber="3">et al</emphasis>
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.
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<number box="[321,388,1921,1947]" pageId="2" pageNumber="3" value="2000.0">2000</number>
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</bibRefCitation>
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). In general, the Anacleto Formation is characterized in this area by the presence of stacked, massive, medium-to-coarse-grained sandstone bodies with locally occurring extraformational particles, pebbles and cobbles. Sandstone bodies are typically sheet-shaped, but lenticular bodies occur locally. Sediments are almost uniformly red in color, but some gray to yellow sandstones also occur. Sandstones are heavily bioturbated with localized occurrences of decimeter-scale, “lumpy” to vertically oriented calcareous concretions that preferentially cement
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<emphasis box="[874,999,229,254]" italics="true" pageId="3" pageNumber="4">Planolites</emphasis>
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burrow-fills, and a variety of more complex burrow/dwelling structures of unknown origin (Coria
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<emphasis box="[891,949,268,293]" italics="true" pageId="3" pageNumber="4">et al.</emphasis>
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<number box="[956,1020,268,294]" pageId="3" pageNumber="4" value="2000.0">2000</number>
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).
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</paragraph>
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</subSubSection>
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<caption httpUri="https://zenodo.org/record/190132/files/figure.png" pageId="3" pageNumber="4" targetBox="[160,1428,357,1019]" targetPageId="3">
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<paragraph blockId="3.[151,1437,1048,1244]" pageId="3" pageNumber="4">
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<emphasis bold="true" box="[151,285,1048,1072]" pageId="3" pageNumber="4">FIGURE 3.</emphasis>
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<taxonomicName box="[292,606,1048,1071]" class="Reptilia" genus="Barrosasaurus" higherTaxonomySource="CoL" kingdom="Animalia" order="Dinosauria" pageId="3" pageNumber="4" phylum="Chordata" rank="species" species="casamiquelai">
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<emphasis box="[292,606,1048,1071]" italics="true" pageId="3" pageNumber="4">Barrosasaurus casamiquelai</emphasis>
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</taxonomicName>
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<emphasis bold="true" box="[613,786,1048,1072]" pageId="3" pageNumber="4">gen. et sp. nov.</emphasis>
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, holotype (MCF-PVPH-447/3). Anterior dorsal vertebra in anterior (A) and left lateral (B) views. Abbreviations: acpl, anterior centroparapophyseal lamina; al, accesory lamina; apcdl, accesory posterior centrodiapophyseal lamina; d, diapophysis; nc, neural canal; p, pleurocoel; pcdl, posterior centrodiapophyseal lamina; pcpl, posterior centroparapophyseal lamina; pp, parapophysis; ppdl, paradiapophyseal lamina; prsl, prespinal lamina; prz, prezygapophysis; sf, small fossa; sprl, spinoprezygapophyseal lamina; tprl, intraprezygapophyseal lamina. Scale bar equals 10 cm.
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</paragraph>
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</caption>
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<subSubSection pageId="3" pageNumber="4" type="diagnosis">
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<paragraph blockId="3.[151,1437,1295,2017]" pageId="3" pageNumber="4">
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<emphasis bold="true" box="[198,326,1295,1321]" pageId="3" pageNumber="4">Diagnosis.</emphasis>
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Large titanosaurian sauropod characterized by the following autapomorphies:
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<number box="[1295,1308,1295,1321]" pageId="3" pageNumber="4" value="1.0">1</number>
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) posterior dorsal vertebrae bearing paired, short spinal laminae, nearly parallel to the prespinal lamina;
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<number box="[1337,1354,1334,1360]" pageId="3" pageNumber="4" value="2.0">2</number>
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) welldeveloped anterior spinodiapophyseal laminae in posterior dorsal vertebrae;
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<number box="[1078,1093,1372,1398]" pageId="3" pageNumber="4" value="3.0">3</number>
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) anterior spinodiapophyseal laminae divided into at least two, and up to three, branches in posteriormost dorsal vertebrae;
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<number box="[1312,1328,1411,1437]" pageId="3" pageNumber="4" value="4.0">4</number>
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) aliform processes with broad, planar and rugose laterodorsal surfaces;
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<number box="[892,907,1450,1476]" pageId="3" pageNumber="4" value="5.0">5</number>
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) portion of neural spine distal to the aliform process is longer than the portion of the spine that is proximal to the aliform process, at least in the posterior dorsals.
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</paragraph>
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</subSubSection>
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<subSubSection lastPageId="10" lastPageNumber="11" pageId="3" pageNumber="4" type="description">
|
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<paragraph blockId="3.[151,1437,1295,2017]" pageId="3" pageNumber="4">
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||
<emphasis bold="true" box="[198,351,1565,1591]" pageId="3" pageNumber="4">Description.</emphasis>
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<emphasis box="[360,582,1566,1591]" italics="true" pageId="3" pageNumber="4">
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MCF-PVPH-
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||
<number box="[511,556,1566,1591]" pageId="3" pageNumber="4" value="447.0">447</number>
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||
/
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<number box="[569,582,1566,1591]" pageId="3" pageNumber="4" value="3.0">3</number>
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||
</emphasis>
|
||
(
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<figureCitation box="[600,677,1566,1592]" captionStart="FIGURE 3" captionStartId="3.[151,256,1048,1072]" captionTargetBox="[160,1428,357,1019]" captionTargetId="figure@3.[151,1435,349,1024]" captionTargetPageId="3" captionText="FIGURE 3. Barrosasaurus casamiquelai gen. et sp. nov., holotype (MCF-PVPH- 447 / 3). Anterior dorsal vertebra in anterior (A) and left lateral (B) views. Abbreviations: acpl, anterior centroparapophyseal lamina; al, accesory lamina; apcdl, accesory posterior centrodiapophyseal lamina; d, diapophysis; nc, neural canal; p, pleurocoel; pcdl, posterior centrodiapophyseal lamina; pcpl, posterior centroparapophyseal lamina; pp, parapophysis; ppdl, paradiapophyseal lamina; prsl, prespinal lamina; prz, prezygapophysis; sf, small fossa; sprl, spinoprezygapophyseal lamina; tprl, intraprezygapophyseal lamina. Scale bar equals 10 cm." httpUri="https://zenodo.org/record/190132/files/figure.png" pageId="3" pageNumber="4">
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Figs
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||
<number box="[661,677,1566,1592]" pageId="3" pageNumber="4" value="3.6">3</number>
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||
</figureCitation>
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||
,
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<figureCitation box="[693,708,1566,1592]" captionStart="FIGURE 6" captionStartId="6.[151,255,622,646]" captionTargetBox="[159,1417,206,576]" captionTargetId="figure@6.[151,1436,194,598]" captionTargetPageId="6" captionText="FIGURE 6. Barrosasaurus casamiquelai gen. et sp. nov., holotype. Dorsal centra in ventral view: A, MCF-PVPH- 447 / 3; B, MCF-PVPH- 447 / 1; MCF-PVPH- 447 / 2. Abbreviation: vk, ventral keel. Scale bar equals 10 cm." httpUri="https://zenodo.org/record/190135/files/figure.png" pageId="3" pageNumber="4">6</figureCitation>
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A). This vertebra is identified as an anterior dorsal, probably the third dorsal, based on the relative position of the parapophysis and comparison to the complete dorsal series of
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<taxonomicName authority="Campos, Kellner, Bertini & Santucci, 2005" authorityName="Campos, Kellner, Bertini & Santucci" authorityYear="2005" box="[259,1032,1643,1669]" class="Reptilia" family="Titanosauridae" genus="Trigonosaurus" higherTaxonomySource="GBIF" kingdom="Animalia" order="Saurischia" pageId="3" pageNumber="4" phylum="Chordata" rank="species" species="pricei">
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||
<emphasis box="[259,509,1643,1668]" italics="true" pageId="3" pageNumber="4">Trigonosaurus pricei</emphasis>
|
||
<bibRefCitation author="Campos" box="[517,1032,1643,1669]" pageId="3" pageNumber="15" refString="Campos, D. A., Kellner, A. W. A., Bertini, R. J. & Santucci, R. M. (2005) On a titanosaurid (Dinosauria, Sauropoda) vertebral column from the Bauru Group, Late Cretaceous of Brazil. Arquivos do Museu Nacional, Rio de Janeiro, 63, 565 - 593." type="journal article" year="2005">
|
||
Campos, Kellner, Bertini & Santucci,
|
||
<number box="[973,1032,1643,1669]" pageId="3" pageNumber="4" value="2005.0">2005</number>
|
||
</bibRefCitation>
|
||
</taxonomicName>
|
||
and other unpublished specimens (e.g. MAU-Pv-CO-
|
||
<number box="[394,440,1682,1708]" pageId="3" pageNumber="4" value="439.0">439</number>
|
||
). Only the anterior half of the vertebra is preserved, and all parts of the specimen positioned posterior to the diapophysis are missing, including most of the neural spine (
|
||
<figureCitation box="[1176,1245,1720,1746]" captionStart="FIGURE 3" captionStartId="3.[151,256,1048,1072]" captionTargetBox="[160,1428,357,1019]" captionTargetId="figure@3.[151,1435,349,1024]" captionTargetPageId="3" captionText="FIGURE 3. Barrosasaurus casamiquelai gen. et sp. nov., holotype (MCF-PVPH- 447 / 3). Anterior dorsal vertebra in anterior (A) and left lateral (B) views. Abbreviations: acpl, anterior centroparapophyseal lamina; al, accesory lamina; apcdl, accesory posterior centrodiapophyseal lamina; d, diapophysis; nc, neural canal; p, pleurocoel; pcdl, posterior centrodiapophyseal lamina; pcpl, posterior centroparapophyseal lamina; pp, parapophysis; ppdl, paradiapophyseal lamina; prsl, prespinal lamina; prz, prezygapophysis; sf, small fossa; sprl, spinoprezygapophyseal lamina; tprl, intraprezygapophyseal lamina. Scale bar equals 10 cm." httpUri="https://zenodo.org/record/190132/files/figure.png" pageId="3" pageNumber="4">
|
||
Fig.
|
||
<number box="[1231,1245,1720,1746]" pageId="3" pageNumber="4" value="3.0">3</number>
|
||
</figureCitation>
|
||
A, B).
|
||
</paragraph>
|
||
<paragraph blockId="3.[151,1437,1295,2017]" pageId="3" pageNumber="4">
|
||
The centrum is opisthocoelous, and notably wider than high. The anterior articular surface is convex and has an elliptical outline (
|
||
<figureCitation box="[398,468,1798,1824]" captionStart="FIGURE 3" captionStartId="3.[151,256,1048,1072]" captionTargetBox="[160,1428,357,1019]" captionTargetId="figure@3.[151,1435,349,1024]" captionTargetPageId="3" captionText="FIGURE 3. Barrosasaurus casamiquelai gen. et sp. nov., holotype (MCF-PVPH- 447 / 3). Anterior dorsal vertebra in anterior (A) and left lateral (B) views. Abbreviations: acpl, anterior centroparapophyseal lamina; al, accesory lamina; apcdl, accesory posterior centrodiapophyseal lamina; d, diapophysis; nc, neural canal; p, pleurocoel; pcdl, posterior centrodiapophyseal lamina; pcpl, posterior centroparapophyseal lamina; pp, parapophysis; ppdl, paradiapophyseal lamina; prsl, prespinal lamina; prz, prezygapophysis; sf, small fossa; sprl, spinoprezygapophyseal lamina; tprl, intraprezygapophyseal lamina. Scale bar equals 10 cm." httpUri="https://zenodo.org/record/190132/files/figure.png" pageId="3" pageNumber="4">
|
||
Fig.
|
||
<number box="[454,468,1798,1824]" pageId="3" pageNumber="4" value="3.0">3</number>
|
||
</figureCitation>
|
||
A). In lateral view, the lateral surfaces of the centrum are strongly excavated and anteroposteriorly concave, and the pleurocoels are placed on the anterior part of the centrum, close to the ventral margin (
|
||
<figureCitation box="[340,410,1875,1901]" captionStart="FIGURE 3" captionStartId="3.[151,256,1048,1072]" captionTargetBox="[160,1428,357,1019]" captionTargetId="figure@3.[151,1435,349,1024]" captionTargetPageId="3" captionText="FIGURE 3. Barrosasaurus casamiquelai gen. et sp. nov., holotype (MCF-PVPH- 447 / 3). Anterior dorsal vertebra in anterior (A) and left lateral (B) views. Abbreviations: acpl, anterior centroparapophyseal lamina; al, accesory lamina; apcdl, accesory posterior centrodiapophyseal lamina; d, diapophysis; nc, neural canal; p, pleurocoel; pcdl, posterior centrodiapophyseal lamina; pcpl, posterior centroparapophyseal lamina; pp, parapophysis; ppdl, paradiapophyseal lamina; prsl, prespinal lamina; prz, prezygapophysis; sf, small fossa; sprl, spinoprezygapophyseal lamina; tprl, intraprezygapophyseal lamina. Scale bar equals 10 cm." httpUri="https://zenodo.org/record/190132/files/figure.png" pageId="3" pageNumber="4">
|
||
Fig.
|
||
<number box="[395,410,1875,1901]" pageId="3" pageNumber="4" value="3.0">3</number>
|
||
</figureCitation>
|
||
B). Unlike the condition in the posterior dorsals, the pleurocoels open directly onto the lateral surfaces of the centrum, and are not set in the bottom of a fossa enclosed by sharp borders. The posterior articular face of the centrum is not preserved, although the element is likely to have been relatively short anteroposteriorly. The ventral surface of the centrum is dominated by a thick, longitudinal keel (
|
||
<figureCitation box="[1387,1436,1991,2017]" captionStart="FIGURE 6" captionStartId="6.[151,255,622,646]" captionTargetBox="[159,1417,206,576]" captionTargetId="figure@6.[151,1436,194,598]" captionTargetPageId="6" captionText="FIGURE 6. Barrosasaurus casamiquelai gen. et sp. nov., holotype. Dorsal centra in ventral view: A, MCF-PVPH- 447 / 3; B, MCF-PVPH- 447 / 1; MCF-PVPH- 447 / 2. Abbreviation: vk, ventral keel. Scale bar equals 10 cm." httpUri="https://zenodo.org/record/190135/files/figure.png" pageId="3" pageNumber="4">Fig.</figureCitation>
|
||
</paragraph>
|
||
<paragraph blockId="4.[151,1436,152,216]" pageId="4" pageNumber="5">
|
||
<number box="[151,166,152,178]" pageId="4" pageNumber="5" value="6.0">6</number>
|
||
A), a character noted by
|
||
<bibRefCitation author="Upchurch" box="[463,730,152,178]" pageId="4" pageNumber="16" refString="Upchurch, P., Barrett, P. M. & Dodson, P. (2004) Sauropoda. In: Weishampel, D. B., Dodson, P. & Osmolska, H. (Eds.), The Dinosauria (Second edition). University of California Press, Berkeley, pp. 259 - 322." type="book chapter" year="2004">
|
||
Upchurch
|
||
<emphasis box="[588,641,152,177]" italics="true" pageId="4" pageNumber="5">et al</emphasis>
|
||
. (
|
||
<number box="[665,730,152,178]" pageId="4" pageNumber="5" value="2004.0">2004</number>
|
||
</bibRefCitation>
|
||
: their character
|
||
<number box="[922,968,152,178]" pageId="4" pageNumber="5" value="126.0">126</number>
|
||
) as present in other sauropods, such as
|
||
<taxonomicName authority="Marsh, 1878" authorityName="Marsh" authorityYear="1878" box="[151,442,190,216]" class="Reptilia" family="Diplodocidae" genus="Diplodocus" higherTaxonomySource="GBIF" kingdom="Animalia" order="Saurischia" pageId="4" pageNumber="5" phylum="Chordata" rank="genus">
|
||
<emphasis box="[151,286,191,216]" italics="true" pageId="4" pageNumber="5">Diplodocus</emphasis>
|
||
<bibRefCitation author="Marsh" box="[293,442,190,216]" pageId="4" pageNumber="15" refString="Marsh, O. C. (1878) Principal characters of American Jurassic dinosaurs. Part I. American Journal of Science, series 3, 16, 411 - 416." type="journal article" year="1878">
|
||
Marsh,
|
||
<number box="[383,442,190,216]" pageId="4" pageNumber="5" value="1878.0">1878</number>
|
||
</bibRefCitation>
|
||
</taxonomicName>
|
||
and
|
||
<taxonomicName authority="Hatcher, 1903" authorityName="Hatcher" authorityYear="1903" box="[498,905,190,216]" class="Reptilia" family="Cetiosauridae" genus="Haplocanthosaurus" higherTaxonomySource="GBIF" kingdom="Animalia" order="Saurischia" pageId="4" pageNumber="5" phylum="Chordata" rank="genus">
|
||
<emphasis box="[498,729,191,216]" italics="true" pageId="4" pageNumber="5">Haplocanthosaurus</emphasis>
|
||
<bibRefCitation author="Hatcher" box="[737,905,190,216]" pageId="4" pageNumber="15" refString="Hatcher, J. B. (1903) A new sauropod dinosaur from the Jurassic of Colorado. Proceedings of the Biological Society of Washington, 16, 1 - 2." type="journal article" year="1903">
|
||
Hatcher,
|
||
<number box="[843,905,190,216]" pageId="4" pageNumber="5" value="1903.0">1903</number>
|
||
</bibRefCitation>
|
||
</taxonomicName>
|
||
.
|
||
</paragraph>
|
||
<caption httpUri="https://zenodo.org/record/190133/files/figure.png" pageId="4" pageNumber="5" targetBox="[153,1430,276,1010]" targetPageId="4">
|
||
<paragraph blockId="4.[151,1437,1038,1269]" pageId="4" pageNumber="5">
|
||
<emphasis bold="true" box="[151,284,1038,1062]" pageId="4" pageNumber="5">FIGURE 4.</emphasis>
|
||
<taxonomicName box="[291,602,1038,1061]" class="Reptilia" genus="Barrosasaurus" higherTaxonomySource="CoL" kingdom="Animalia" order="Dinosauria" pageId="4" pageNumber="5" phylum="Chordata" rank="species" species="casamiquelai">
|
||
<emphasis box="[291,602,1038,1061]" italics="true" pageId="4" pageNumber="5">Barrosasaurus casamiquelai</emphasis>
|
||
</taxonomicName>
|
||
<emphasis bold="true" box="[610,781,1038,1062]" pageId="4" pageNumber="5">gen. et sp. nov.</emphasis>
|
||
, holotype (MCF-PVPH-447/1). Posterior dorsal (seventh or eighth) vertebra in anterior (A), right lateral (B) and posterior (C) views. Abbreviations:acpl, anterior centroparapophyseal lamina; alp, aliform process; apcdl, accessory posterior centrodiapophyseal lamina; aspdl, anterior spinodiapophyseal lamina; d, diapophysis; nc, neural canal; pcdl, posterior centrodiapophyseal lamina; pcpl, posterior centroparapophyseal lamina; posl, postspinal lamina; pp, parapophysis; ppdl, paradiapophyseal lamina; prsl, prespinal lamina; prz, prezygapophysis; spol, spinopostzygapophyseal lamina; sprl, spinoprezygapophyseal lamina; tprl, intraprezygapophyseal lamina. Scale bar equals 10 cm.
|
||
</paragraph>
|
||
</caption>
|
||
<paragraph blockId="4.[151,1437,1315,1999]" pageId="4" pageNumber="5">
|
||
In anterior view the neural arch is transversely wide. The transverse processes are dorsoventrally flattened. The diapophyses project laterally and slightly dorsally (
|
||
<figureCitation box="[925,995,1354,1380]" captionStart="FIGURE 3" captionStartId="3.[151,256,1048,1072]" captionTargetBox="[160,1428,357,1019]" captionTargetId="figure@3.[151,1435,349,1024]" captionTargetPageId="3" captionText="FIGURE 3. Barrosasaurus casamiquelai gen. et sp. nov., holotype (MCF-PVPH- 447 / 3). Anterior dorsal vertebra in anterior (A) and left lateral (B) views. Abbreviations: acpl, anterior centroparapophyseal lamina; al, accesory lamina; apcdl, accesory posterior centrodiapophyseal lamina; d, diapophysis; nc, neural canal; p, pleurocoel; pcdl, posterior centrodiapophyseal lamina; pcpl, posterior centroparapophyseal lamina; pp, parapophysis; ppdl, paradiapophyseal lamina; prsl, prespinal lamina; prz, prezygapophysis; sf, small fossa; sprl, spinoprezygapophyseal lamina; tprl, intraprezygapophyseal lamina. Scale bar equals 10 cm." httpUri="https://zenodo.org/record/190132/files/figure.png" pageId="4" pageNumber="5">
|
||
Fig.
|
||
<number box="[981,995,1354,1380]" pageId="4" pageNumber="5" value="3.0">3</number>
|
||
</figureCitation>
|
||
A). The anterior surface of the neural arch is slightly concave. The centroprezygapophyseal laminae are absent. The neural canal is nearly circular. A short segment of the base of the prespinal lamina is preserved and extends dorsal to a small fossa that is located above the neural canal (
|
||
<figureCitation box="[525,595,1470,1496]" captionStart="FIGURE 3" captionStartId="3.[151,256,1048,1072]" captionTargetBox="[160,1428,357,1019]" captionTargetId="figure@3.[151,1435,349,1024]" captionTargetPageId="3" captionText="FIGURE 3. Barrosasaurus casamiquelai gen. et sp. nov., holotype (MCF-PVPH- 447 / 3). Anterior dorsal vertebra in anterior (A) and left lateral (B) views. Abbreviations: acpl, anterior centroparapophyseal lamina; al, accesory lamina; apcdl, accesory posterior centrodiapophyseal lamina; d, diapophysis; nc, neural canal; p, pleurocoel; pcdl, posterior centrodiapophyseal lamina; pcpl, posterior centroparapophyseal lamina; pp, parapophysis; ppdl, paradiapophyseal lamina; prsl, prespinal lamina; prz, prezygapophysis; sf, small fossa; sprl, spinoprezygapophyseal lamina; tprl, intraprezygapophyseal lamina. Scale bar equals 10 cm." httpUri="https://zenodo.org/record/190132/files/figure.png" pageId="4" pageNumber="5">
|
||
Fig.
|
||
<number box="[581,595,1470,1496]" pageId="4" pageNumber="5" value="3.0">3</number>
|
||
</figureCitation>
|
||
A, sf). The small fossa is bordered ventrally by a prominent, shelf-like, supraneural structure, which corresponds to the fused left and right intraprezygapophyseal laminae (
|
||
<figureCitation box="[1337,1406,1509,1535]" captionStart="FIGURE 3" captionStartId="3.[151,256,1048,1072]" captionTargetBox="[160,1428,357,1019]" captionTargetId="figure@3.[151,1435,349,1024]" captionTargetPageId="3" captionText="FIGURE 3. Barrosasaurus casamiquelai gen. et sp. nov., holotype (MCF-PVPH- 447 / 3). Anterior dorsal vertebra in anterior (A) and left lateral (B) views. Abbreviations: acpl, anterior centroparapophyseal lamina; al, accesory lamina; apcdl, accesory posterior centrodiapophyseal lamina; d, diapophysis; nc, neural canal; p, pleurocoel; pcdl, posterior centrodiapophyseal lamina; pcpl, posterior centroparapophyseal lamina; pp, parapophysis; ppdl, paradiapophyseal lamina; prsl, prespinal lamina; prz, prezygapophysis; sf, small fossa; sprl, spinoprezygapophyseal lamina; tprl, intraprezygapophyseal lamina. Scale bar equals 10 cm." httpUri="https://zenodo.org/record/190132/files/figure.png" pageId="4" pageNumber="5">
|
||
Fig.
|
||
<number box="[1392,1406,1509,1535]" pageId="4" pageNumber="5" value="3.0">3</number>
|
||
</figureCitation>
|
||
A, tprl). The bases of both spinoprezygapophyseal laminae are clearly visible in anterior view (
|
||
<figureCitation box="[1264,1335,1547,1573]" captionStart="FIGURE 3" captionStartId="3.[151,256,1048,1072]" captionTargetBox="[160,1428,357,1019]" captionTargetId="figure@3.[151,1435,349,1024]" captionTargetPageId="3" captionText="FIGURE 3. Barrosasaurus casamiquelai gen. et sp. nov., holotype (MCF-PVPH- 447 / 3). Anterior dorsal vertebra in anterior (A) and left lateral (B) views. Abbreviations: acpl, anterior centroparapophyseal lamina; al, accesory lamina; apcdl, accesory posterior centrodiapophyseal lamina; d, diapophysis; nc, neural canal; p, pleurocoel; pcdl, posterior centrodiapophyseal lamina; pcpl, posterior centroparapophyseal lamina; pp, parapophysis; ppdl, paradiapophyseal lamina; prsl, prespinal lamina; prz, prezygapophysis; sf, small fossa; sprl, spinoprezygapophyseal lamina; tprl, intraprezygapophyseal lamina. Scale bar equals 10 cm." httpUri="https://zenodo.org/record/190132/files/figure.png" pageId="4" pageNumber="5">
|
||
Fig.
|
||
<number box="[1321,1335,1547,1573]" pageId="4" pageNumber="5" value="3.0">3</number>
|
||
</figureCitation>
|
||
A, sprl). Several titanosaurs preserve relatively complete dorsal sequences, including
|
||
<taxonomicName box="[1155,1428,1586,1611]" class="Reptilia" family="Titanosauridae" genus="Trigonosaurus" higherTaxonomySource="GBIF" kingdom="Animalia" order="Saurischia" pageId="4" pageNumber="5" phylum="Chordata" rank="species" species="pricei">
|
||
<emphasis box="[1155,1428,1586,1611]" italics="true" pageId="4" pageNumber="5">Trigonosaurus pricei</emphasis>
|
||
</taxonomicName>
|
||
,
|
||
<taxonomicName authority="Lydekker, 1893" authorityName="Lydekker" authorityYear="1893" box="[151,656,1625,1651]" class="Reptilia" family="Titanosauridae" genus="Argyrosaurus" higherTaxonomySource="GBIF" kingdom="Animalia" order="Saurischia" pageId="4" pageNumber="5" phylum="Chordata" rank="species" species="superbus">
|
||
<emphasis box="[151,445,1625,1650]" italics="true" pageId="4" pageNumber="5">Argyrosaurus superbus</emphasis>
|
||
<bibRefCitation author="Lydekker" box="[455,656,1625,1651]" pageId="4" pageNumber="15" refString="Lydekker, R. (1893) The dinosaurs of Patagonia. Anales del Museo de la Plata, Paleontologia, 2, 1 - 14." type="journal article" year="1893">
|
||
Lydekker,
|
||
<number box="[590,656,1625,1651]" pageId="4" pageNumber="5" value="1893.0">1893</number>
|
||
</bibRefCitation>
|
||
</taxonomicName>
|
||
,
|
||
<taxonomicName box="[670,987,1625,1650]" class="Reptilia" family="Titanosauridae" genus="Neuquensaurus" higherTaxonomySource="GBIF" kingdom="Animalia" order="Saurischia" pageId="4" pageNumber="5" phylum="Chordata" rank="species" species="australis">
|
||
<emphasis box="[670,987,1625,1650]" italics="true" pageId="4" pageNumber="5">Neuquensaurus australis</emphasis>
|
||
</taxonomicName>
|
||
, and
|
||
<taxonomicName authority="Bonaparte & Coria, 1993" authorityName="Bonaparte & Coria" authorityYear="1993" class="Reptilia" family="Titanosauridae" genus="Argentinosaurus" higherTaxonomySource="GBIF" kingdom="Animalia" order="Saurischia" pageId="4" pageNumber="5" phylum="Chordata" rank="species" species="huinculensis">
|
||
<emphasis box="[1059,1437,1625,1650]" italics="true" pageId="4" pageNumber="5">Argentinosaurus huinculensis</emphasis>
|
||
<bibRefCitation author="Bonaparte" box="[151,454,1664,1690]" pageId="4" pageNumber="14" refString="Bonaparte, J. F. & Coria, R. A. (1993) Un nuevo y gigante sauropodo titanosaurio de la Formacion Rio Limay (Albiano- Cenomaniano) de la Provincia del Neuquen, Argentina. Ameghiniana, 30, 271 - 282." type="journal article" year="1993">
|
||
Bonaparte & Coria,
|
||
<number box="[391,454,1664,1690]" pageId="4" pageNumber="5" value="1993.0">1993</number>
|
||
</bibRefCitation>
|
||
</taxonomicName>
|
||
. In general, the spinoprezygapophyseal laminae are absent or extremely reduced in the anterior dorsals of these taxa (
|
||
<bibRefCitation author="Huene" box="[552,701,1702,1728]" pageId="4" pageNumber="15" refString="Huene, F. (1929) Los Saurisquios y Ornitisquios del Cretaceo Argentino. Anales del Museo de La Plata, 3, 1 - 196." type="journal article" year="1929">
|
||
Huene
|
||
<number box="[639,701,1702,1728]" pageId="4" pageNumber="5" value="1929.0">1929</number>
|
||
</bibRefCitation>
|
||
;
|
||
<bibRefCitation author="Bonaparte" box="[714,1009,1702,1728]" pageId="4" pageNumber="14" refString="Bonaparte, J. F. & Coria, R. A. (1993) Un nuevo y gigante sauropodo titanosaurio de la Formacion Rio Limay (Albiano- Cenomaniano) de la Provincia del Neuquen, Argentina. Ameghiniana, 30, 271 - 282." type="journal article" year="1993">
|
||
Bonaparte & Coria
|
||
<number box="[947,1009,1702,1728]" pageId="4" pageNumber="5" value="1993.0">1993</number>
|
||
</bibRefCitation>
|
||
;
|
||
<bibRefCitation author="Campos" box="[1023,1258,1702,1728]" pageId="4" pageNumber="15" refString="Campos, D. A., Kellner, A. W. A., Bertini, R. J. & Santucci, R. M. (2005) On a titanosaurid (Dinosauria, Sauropoda) vertebral column from the Bauru Group, Late Cretaceous of Brazil. Arquivos do Museu Nacional, Rio de Janeiro, 63, 565 - 593." type="journal article" year="2005">
|
||
Campos
|
||
<emphasis box="[1127,1179,1703,1728]" italics="true" pageId="4" pageNumber="5">et al</emphasis>
|
||
.
|
||
<number box="[1195,1258,1702,1728]" pageId="4" pageNumber="5" value="2005.0">2005</number>
|
||
</bibRefCitation>
|
||
;
|
||
<bibRefCitation author="Powell" box="[1270,1424,1702,1728]" pageId="4" pageNumber="15" refString="Powell, J. E. (2003) Revision of South American titanosaurid dinosaurs: palaeobiological, palaeobiogeographical and phylogenetic aspects. Records of the Queen Victoria Museum, Launceston, 111, 1 - 173." type="journal article" year="2003">
|
||
Powell
|
||
<number box="[1360,1424,1702,1728]" pageId="4" pageNumber="5" value="2003.0">2003</number>
|
||
</bibRefCitation>
|
||
). Because the neural spine is missing, it is not possible to determine if the spinoprezygapophyseal laminae were confluent at some point on the element. The prezygapophyses are well separated from one another (
|
||
<figureCitation box="[1337,1406,1779,1805]" captionStart="FIGURE 3" captionStartId="3.[151,256,1048,1072]" captionTargetBox="[160,1428,357,1019]" captionTargetId="figure@3.[151,1435,349,1024]" captionTargetPageId="3" captionText="FIGURE 3. Barrosasaurus casamiquelai gen. et sp. nov., holotype (MCF-PVPH- 447 / 3). Anterior dorsal vertebra in anterior (A) and left lateral (B) views. Abbreviations: acpl, anterior centroparapophyseal lamina; al, accesory lamina; apcdl, accesory posterior centrodiapophyseal lamina; d, diapophysis; nc, neural canal; p, pleurocoel; pcdl, posterior centrodiapophyseal lamina; pcpl, posterior centroparapophyseal lamina; pp, parapophysis; ppdl, paradiapophyseal lamina; prsl, prespinal lamina; prz, prezygapophysis; sf, small fossa; sprl, spinoprezygapophyseal lamina; tprl, intraprezygapophyseal lamina. Scale bar equals 10 cm." httpUri="https://zenodo.org/record/190132/files/figure.png" pageId="4" pageNumber="5">
|
||
Fig.
|
||
<number box="[1392,1406,1779,1805]" pageId="4" pageNumber="5" value="3.0">3</number>
|
||
</figureCitation>
|
||
A, prz), and are placed posterior to the parapophyses, at a point approximately level with the diapophyses. The articular facets of the prezygapophyses have an oval outline, with their longest diameter transversely oriented (
|
||
<figureCitation box="[159,228,1896,1922]" captionStart="FIGURE 3" captionStartId="3.[151,256,1048,1072]" captionTargetBox="[160,1428,357,1019]" captionTargetId="figure@3.[151,1435,349,1024]" captionTargetPageId="3" captionText="FIGURE 3. Barrosasaurus casamiquelai gen. et sp. nov., holotype (MCF-PVPH- 447 / 3). Anterior dorsal vertebra in anterior (A) and left lateral (B) views. Abbreviations: acpl, anterior centroparapophyseal lamina; al, accesory lamina; apcdl, accesory posterior centrodiapophyseal lamina; d, diapophysis; nc, neural canal; p, pleurocoel; pcdl, posterior centrodiapophyseal lamina; pcpl, posterior centroparapophyseal lamina; pp, parapophysis; ppdl, paradiapophyseal lamina; prsl, prespinal lamina; prz, prezygapophysis; sf, small fossa; sprl, spinoprezygapophyseal lamina; tprl, intraprezygapophyseal lamina. Scale bar equals 10 cm." httpUri="https://zenodo.org/record/190132/files/figure.png" pageId="4" pageNumber="5">
|
||
Fig.
|
||
<number box="[214,228,1896,1922]" pageId="4" pageNumber="5" value="3.0">3</number>
|
||
</figureCitation>
|
||
A). The articular faces of the prezygapophyses face dorsomedially, at an angle of approximately
|
||
<number box="[1364,1396,1896,1922]" pageId="4" pageNumber="5" value="30.0">30</number>
|
||
° to the horizontal. The parapophyses project laterally, with their articular facets dorsoventrally elongated and slightly concave.
|
||
</paragraph>
|
||
<caption httpUri="https://zenodo.org/record/190134/files/figure.png" pageId="5" pageNumber="6" targetBox="[204,1387,214,1658]" targetPageId="5">
|
||
<paragraph blockId="5.[151,1437,1698,1929]" pageId="5" pageNumber="6">
|
||
<emphasis bold="true" box="[151,286,1698,1722]" pageId="5" pageNumber="6">FIGURE 5.</emphasis>
|
||
<taxonomicName box="[293,612,1698,1721]" class="Reptilia" genus="Barrosasaurus" higherTaxonomySource="CoL" kingdom="Animalia" order="Dinosauria" pageId="5" pageNumber="6" phylum="Chordata" rank="species" species="casamiquelai">
|
||
<emphasis box="[293,612,1698,1721]" italics="true" pageId="5" pageNumber="6">Barrosasaurus casamiquelai</emphasis>
|
||
</taxonomicName>
|
||
<emphasis bold="true" box="[619,794,1698,1722]" pageId="5" pageNumber="6">gen. et sp. nov.</emphasis>
|
||
, holotype (MCF-PVPH-447/2). Posterior dorsal (ninth or tenth) vertebra in anterior (A), posterior (B), left (C), and right lateral (D) views. Abbreviations: acpl, anterior centroparapophyseal lamina; alp, aliform process; apcdl, accesory posterior centrodiapophyseal lamina; aspdl, anterior spinodiapophyseal lamina; f, fossa; nc, neural canal; p, pleurocoel; pcdl, posterior centrodiapophyseal lamina; pcpl, posterior centroparapophyseal lamina; podl, postzygodiapophyseal lamina; posl, postspinal lamina; prsl, prespinal lamina; prz, prezygapophysis; pz, postzygapophysis; r, rib; spol, spinoposztzygapophyseal lamina; sprl, spinoprezygapophyseal lamina; tl, transverse lamina. Scale bar equals 10 cm.
|
||
</paragraph>
|
||
</caption>
|
||
<caption httpUri="https://zenodo.org/record/190135/files/figure.png" pageId="6" pageNumber="7" targetBox="[159,1417,206,576]" targetPageId="6">
|
||
<paragraph blockId="6.[151,1436,622,680]" pageId="6" pageNumber="7">
|
||
<emphasis bold="true" box="[151,281,622,646]" pageId="6" pageNumber="7">FIGURE 6.</emphasis>
|
||
<taxonomicName box="[288,595,622,645]" class="Reptilia" genus="Barrosasaurus" higherTaxonomySource="CoL" kingdom="Animalia" order="Dinosauria" pageId="6" pageNumber="7" phylum="Chordata" rank="species" species="casamiquelai">
|
||
<emphasis box="[288,595,622,645]" italics="true" pageId="6" pageNumber="7">Barrosasaurus casamiquelai</emphasis>
|
||
</taxonomicName>
|
||
<emphasis bold="true" box="[602,769,622,646]" pageId="6" pageNumber="7">gen. et sp. nov.</emphasis>
|
||
, holotype. Dorsal centra in ventral view: A, MCF-PVPH-447/ 3; B, MCF-PVPH-447/1; MCF-PVPH-447/2. Abbreviation: vk, ventral keel. Scale bar equals 10 cm.
|
||
</paragraph>
|
||
</caption>
|
||
<caption httpUri="https://zenodo.org/record/190136/files/figure.png" pageId="6" pageNumber="7" targetBox="[181,1426,751,1170]" targetPageId="6">
|
||
<paragraph blockId="6.[151,1436,1198,1291]" pageId="6" pageNumber="7">
|
||
<emphasis bold="true" box="[151,283,1198,1222]" pageId="6" pageNumber="7">FIGURE 7.</emphasis>
|
||
Comparison of anterior dorsal vertebrae of some selected titanosaurs, in anterior view. A,
|
||
<taxonomicName class="Reptilia" genus="Barrosasaurus" higherTaxonomySource="CoL" kingdom="Animalia" order="Dinosauria" pageId="6" pageNumber="7" phylum="Chordata" rank="species" species="casamiquelai">
|
||
<emphasis italics="true" pageId="6" pageNumber="7">Barrosasaurus casamiquelai</emphasis>
|
||
</taxonomicName>
|
||
<emphasis bold="true" box="[301,469,1232,1256]" pageId="6" pageNumber="7">gen. et sp. nov.</emphasis>
|
||
(holotype, MCF-PVPH-447/3). B,
|
||
<taxonomicName box="[851,1170,1233,1256]" class="Reptilia" family="Titanosauridae" genus="Argentinosaurus" higherTaxonomySource="GBIF" kingdom="Animalia" order="Saurischia" pageId="6" pageNumber="7" phylum="Chordata" rank="species" species="huinculensis">
|
||
<emphasis box="[851,1170,1233,1256]" italics="true" pageId="6" pageNumber="7">Argentinosaurus huinculensis</emphasis>
|
||
</taxonomicName>
|
||
(holotype, MCF-PVPH- 1). C,
|
||
<taxonomicName box="[217,502,1268,1291]" class="Reptilia" family="Titanosauridae" genus="Mendozasaurus" higherTaxonomySource="GBIF" kingdom="Animalia" order="Saurischia" pageId="6" pageNumber="7" phylum="Chordata" rank="species" species="neguyelap">
|
||
<emphasis box="[217,502,1268,1291]" italics="true" pageId="6" pageNumber="7">Mendozasaurus neguyelap</emphasis>
|
||
</taxonomicName>
|
||
(paratype, IANIGLA-PV 066). Scale bar equals 10 cm.
|
||
</paragraph>
|
||
</caption>
|
||
<paragraph blockId="6.[151,1437,1341,2024]" pageId="6" pageNumber="7">
|
||
In lateral view, the neural arch is anteroposteriorly short (
|
||
<figureCitation box="[943,1021,1341,1367]" captionStart="FIGURE 3" captionStartId="3.[151,256,1048,1072]" captionTargetBox="[160,1428,357,1019]" captionTargetId="figure@3.[151,1435,349,1024]" captionTargetPageId="3" captionText="FIGURE 3. Barrosasaurus casamiquelai gen. et sp. nov., holotype (MCF-PVPH- 447 / 3). Anterior dorsal vertebra in anterior (A) and left lateral (B) views. Abbreviations: acpl, anterior centroparapophyseal lamina; al, accesory lamina; apcdl, accesory posterior centrodiapophyseal lamina; d, diapophysis; nc, neural canal; p, pleurocoel; pcdl, posterior centrodiapophyseal lamina; pcpl, posterior centroparapophyseal lamina; pp, parapophysis; ppdl, paradiapophyseal lamina; prsl, prespinal lamina; prz, prezygapophysis; sf, small fossa; sprl, spinoprezygapophyseal lamina; tprl, intraprezygapophyseal lamina. Scale bar equals 10 cm." httpUri="https://zenodo.org/record/190132/files/figure.png" pageId="6" pageNumber="7">
|
||
Fig.
|
||
<number box="[1006,1021,1341,1367]" pageId="6" pageNumber="7" value="3.0">3</number>
|
||
</figureCitation>
|
||
B). The parapophyses are placed approximately at the midpoint between the dorsal border of the centrum and the diapophyses (
|
||
<figureCitation box="[1251,1319,1379,1405]" captionStart="FIGURE 3" captionStartId="3.[151,256,1048,1072]" captionTargetBox="[160,1428,357,1019]" captionTargetId="figure@3.[151,1435,349,1024]" captionTargetPageId="3" captionText="FIGURE 3. Barrosasaurus casamiquelai gen. et sp. nov., holotype (MCF-PVPH- 447 / 3). Anterior dorsal vertebra in anterior (A) and left lateral (B) views. Abbreviations: acpl, anterior centroparapophyseal lamina; al, accesory lamina; apcdl, accesory posterior centrodiapophyseal lamina; d, diapophysis; nc, neural canal; p, pleurocoel; pcdl, posterior centrodiapophyseal lamina; pcpl, posterior centroparapophyseal lamina; pp, parapophysis; ppdl, paradiapophyseal lamina; prsl, prespinal lamina; prz, prezygapophysis; sf, small fossa; sprl, spinoprezygapophyseal lamina; tprl, intraprezygapophyseal lamina. Scale bar equals 10 cm." httpUri="https://zenodo.org/record/190132/files/figure.png" pageId="6" pageNumber="7">
|
||
Fig.
|
||
<number box="[1305,1319,1379,1405]" pageId="6" pageNumber="7" value="3.0">3</number>
|
||
</figureCitation>
|
||
A, B, pp). A well developed anterior centroparapophyseal lamina is present (
|
||
<figureCitation box="[979,1053,1418,1444]" captionStart="FIGURE 3" captionStartId="3.[151,256,1048,1072]" captionTargetBox="[160,1428,357,1019]" captionTargetId="figure@3.[151,1435,349,1024]" captionTargetPageId="3" captionText="FIGURE 3. Barrosasaurus casamiquelai gen. et sp. nov., holotype (MCF-PVPH- 447 / 3). Anterior dorsal vertebra in anterior (A) and left lateral (B) views. Abbreviations: acpl, anterior centroparapophyseal lamina; al, accesory lamina; apcdl, accesory posterior centrodiapophyseal lamina; d, diapophysis; nc, neural canal; p, pleurocoel; pcdl, posterior centrodiapophyseal lamina; pcpl, posterior centroparapophyseal lamina; pp, parapophysis; ppdl, paradiapophyseal lamina; prsl, prespinal lamina; prz, prezygapophysis; sf, small fossa; sprl, spinoprezygapophyseal lamina; tprl, intraprezygapophyseal lamina. Scale bar equals 10 cm." httpUri="https://zenodo.org/record/190132/files/figure.png" pageId="6" pageNumber="7">
|
||
Fig.
|
||
<number box="[1038,1053,1418,1444]" pageId="6" pageNumber="7" value="3.0">3</number>
|
||
</figureCitation>
|
||
B, acpl), whereas the posterior centroparapophyseal lamina is poorly developed (
|
||
<figureCitation box="[747,818,1457,1483]" captionStart="FIGURE 3" captionStartId="3.[151,256,1048,1072]" captionTargetBox="[160,1428,357,1019]" captionTargetId="figure@3.[151,1435,349,1024]" captionTargetPageId="3" captionText="FIGURE 3. Barrosasaurus casamiquelai gen. et sp. nov., holotype (MCF-PVPH- 447 / 3). Anterior dorsal vertebra in anterior (A) and left lateral (B) views. Abbreviations: acpl, anterior centroparapophyseal lamina; al, accesory lamina; apcdl, accesory posterior centrodiapophyseal lamina; d, diapophysis; nc, neural canal; p, pleurocoel; pcdl, posterior centrodiapophyseal lamina; pcpl, posterior centroparapophyseal lamina; pp, parapophysis; ppdl, paradiapophyseal lamina; prsl, prespinal lamina; prz, prezygapophysis; sf, small fossa; sprl, spinoprezygapophyseal lamina; tprl, intraprezygapophyseal lamina. Scale bar equals 10 cm." httpUri="https://zenodo.org/record/190132/files/figure.png" pageId="6" pageNumber="7">
|
||
Fig.
|
||
<number box="[803,818,1457,1483]" pageId="6" pageNumber="7" value="3.0">3</number>
|
||
</figureCitation>
|
||
B, pcpl). The paradiapophyseal lamina, which links the parapophysis with the anterior face of the diapophysis, is well-developed (
|
||
<figureCitation box="[1078,1148,1496,1522]" captionStart="FIGURE 3" captionStartId="3.[151,256,1048,1072]" captionTargetBox="[160,1428,357,1019]" captionTargetId="figure@3.[151,1435,349,1024]" captionTargetPageId="3" captionText="FIGURE 3. Barrosasaurus casamiquelai gen. et sp. nov., holotype (MCF-PVPH- 447 / 3). Anterior dorsal vertebra in anterior (A) and left lateral (B) views. Abbreviations: acpl, anterior centroparapophyseal lamina; al, accesory lamina; apcdl, accesory posterior centrodiapophyseal lamina; d, diapophysis; nc, neural canal; p, pleurocoel; pcdl, posterior centrodiapophyseal lamina; pcpl, posterior centroparapophyseal lamina; pp, parapophysis; ppdl, paradiapophyseal lamina; prsl, prespinal lamina; prz, prezygapophysis; sf, small fossa; sprl, spinoprezygapophyseal lamina; tprl, intraprezygapophyseal lamina. Scale bar equals 10 cm." httpUri="https://zenodo.org/record/190132/files/figure.png" pageId="6" pageNumber="7">
|
||
Fig.
|
||
<number box="[1134,1148,1496,1522]" pageId="6" pageNumber="7" value="3.0">3</number>
|
||
</figureCitation>
|
||
A, B, ppdl). Posterior to the paradiapophyseal lamina, there is another, shorter, lamina that extends to the ventral border of the diapophysis (
|
||
<figureCitation box="[312,385,1573,1599]" captionStart="FIGURE 3" captionStartId="3.[151,256,1048,1072]" captionTargetBox="[160,1428,357,1019]" captionTargetId="figure@3.[151,1435,349,1024]" captionTargetPageId="3" captionText="FIGURE 3. Barrosasaurus casamiquelai gen. et sp. nov., holotype (MCF-PVPH- 447 / 3). Anterior dorsal vertebra in anterior (A) and left lateral (B) views. Abbreviations: acpl, anterior centroparapophyseal lamina; al, accesory lamina; apcdl, accesory posterior centrodiapophyseal lamina; d, diapophysis; nc, neural canal; p, pleurocoel; pcdl, posterior centrodiapophyseal lamina; pcpl, posterior centroparapophyseal lamina; pp, parapophysis; ppdl, paradiapophyseal lamina; prsl, prespinal lamina; prz, prezygapophysis; sf, small fossa; sprl, spinoprezygapophyseal lamina; tprl, intraprezygapophyseal lamina. Scale bar equals 10 cm." httpUri="https://zenodo.org/record/190132/files/figure.png" pageId="6" pageNumber="7">
|
||
Fig.
|
||
<number box="[370,385,1573,1599]" pageId="6" pageNumber="7" value="3.0">3</number>
|
||
</figureCitation>
|
||
B, al). Between this short accessory lamina and the paradiapophyseal lamina there is a shallow fossa. A robust posterior centrodiapophyseal lamina extends from the ventral face of the diapophysis (
|
||
<figureCitation box="[160,231,1650,1676]" captionStart="FIGURE 3" captionStartId="3.[151,256,1048,1072]" captionTargetBox="[160,1428,357,1019]" captionTargetId="figure@3.[151,1435,349,1024]" captionTargetPageId="3" captionText="FIGURE 3. Barrosasaurus casamiquelai gen. et sp. nov., holotype (MCF-PVPH- 447 / 3). Anterior dorsal vertebra in anterior (A) and left lateral (B) views. Abbreviations: acpl, anterior centroparapophyseal lamina; al, accesory lamina; apcdl, accesory posterior centrodiapophyseal lamina; d, diapophysis; nc, neural canal; p, pleurocoel; pcdl, posterior centrodiapophyseal lamina; pcpl, posterior centroparapophyseal lamina; pp, parapophysis; ppdl, paradiapophyseal lamina; prsl, prespinal lamina; prz, prezygapophysis; sf, small fossa; sprl, spinoprezygapophyseal lamina; tprl, intraprezygapophyseal lamina. Scale bar equals 10 cm." httpUri="https://zenodo.org/record/190132/files/figure.png" pageId="6" pageNumber="7">
|
||
Fig.
|
||
<number box="[216,231,1650,1676]" pageId="6" pageNumber="7" value="3.0">3</number>
|
||
</figureCitation>
|
||
B, pcdl). In addition, an accessory posterior centrodiapophyseal lamina extends anteroventrally from the ventral face of the diapophysis (
|
||
<figureCitation box="[595,668,1689,1715]" captionStart="FIGURE 3" captionStartId="3.[151,256,1048,1072]" captionTargetBox="[160,1428,357,1019]" captionTargetId="figure@3.[151,1435,349,1024]" captionTargetPageId="3" captionText="FIGURE 3. Barrosasaurus casamiquelai gen. et sp. nov., holotype (MCF-PVPH- 447 / 3). Anterior dorsal vertebra in anterior (A) and left lateral (B) views. Abbreviations: acpl, anterior centroparapophyseal lamina; al, accesory lamina; apcdl, accesory posterior centrodiapophyseal lamina; d, diapophysis; nc, neural canal; p, pleurocoel; pcdl, posterior centrodiapophyseal lamina; pcpl, posterior centroparapophyseal lamina; pp, parapophysis; ppdl, paradiapophyseal lamina; prsl, prespinal lamina; prz, prezygapophysis; sf, small fossa; sprl, spinoprezygapophyseal lamina; tprl, intraprezygapophyseal lamina. Scale bar equals 10 cm." httpUri="https://zenodo.org/record/190132/files/figure.png" pageId="6" pageNumber="7">
|
||
Fig.
|
||
<number box="[653,668,1689,1715]" pageId="6" pageNumber="7" value="3.0">3</number>
|
||
</figureCitation>
|
||
B, apcdl). This accessory posterior centrodiapophyseal lamina subdivides a fossa that is positioned posterior to the parapophysis: the infradiapophyseal fossa (
|
||
<figureCitation box="[1284,1355,1728,1754]" captionStart="FIGURE 3" captionStartId="3.[151,256,1048,1072]" captionTargetBox="[160,1428,357,1019]" captionTargetId="figure@3.[151,1435,349,1024]" captionTargetPageId="3" captionText="FIGURE 3. Barrosasaurus casamiquelai gen. et sp. nov., holotype (MCF-PVPH- 447 / 3). Anterior dorsal vertebra in anterior (A) and left lateral (B) views. Abbreviations: acpl, anterior centroparapophyseal lamina; al, accesory lamina; apcdl, accesory posterior centrodiapophyseal lamina; d, diapophysis; nc, neural canal; p, pleurocoel; pcdl, posterior centrodiapophyseal lamina; pcpl, posterior centroparapophyseal lamina; pp, parapophysis; ppdl, paradiapophyseal lamina; prsl, prespinal lamina; prz, prezygapophysis; sf, small fossa; sprl, spinoprezygapophyseal lamina; tprl, intraprezygapophyseal lamina. Scale bar equals 10 cm." httpUri="https://zenodo.org/record/190132/files/figure.png" pageId="6" pageNumber="7">
|
||
Fig.
|
||
<number box="[1340,1355,1728,1754]" pageId="6" pageNumber="7" value="3.0">3</number>
|
||
</figureCitation>
|
||
B). On the left side, the base of a spinodiapophyseal lamina is present.
|
||
</paragraph>
|
||
<paragraph blockId="6.[151,1437,1341,2024]" lastBlockId="7.[151,1436,152,294]" lastPageId="7" lastPageNumber="8" pageId="6" pageNumber="7">
|
||
<emphasis box="[198,421,1805,1830]" italics="true" pageId="6" pageNumber="7">
|
||
MCF-PVPH-
|
||
<number box="[351,397,1805,1830]" pageId="6" pageNumber="7" value="447.0">447</number>
|
||
/
|
||
<number box="[410,421,1805,1830]" pageId="6" pageNumber="7" value="1.0">1</number>
|
||
</emphasis>
|
||
(
|
||
<figureCitation box="[437,512,1805,1831]" captionStart="FIGURE 4" captionStartId="4.[151,256,1038,1062]" captionTargetBox="[153,1430,276,1010]" captionTargetId="figure@4.[151,1436,271,1011]" captionTargetPageId="4" captionText="FIGURE 4. Barrosasaurus casamiquelai gen. et sp. nov., holotype (MCF-PVPH- 447 / 1). Posterior dorsal (seventh or eighth) vertebra in anterior (A), right lateral (B) and posterior (C) views. Abbreviations: acpl, anterior centroparapophyseal lamina; alp, aliform process; apcdl, accessory posterior centrodiapophyseal lamina; aspdl, anterior spinodiapophyseal lamina; d, diapophysis; nc, neural canal; pcdl, posterior centrodiapophyseal lamina; pcpl, posterior centroparapophyseal lamina; posl, postspinal lamina; pp, parapophysis; ppdl, paradiapophyseal lamina; prsl, prespinal lamina; prz, prezygapophysis; spol, spinopostzygapophyseal lamina; sprl, spinoprezygapophyseal lamina; tprl, intraprezygapophyseal lamina. Scale bar equals 10 cm." httpUri="https://zenodo.org/record/190133/files/figure.png" pageId="6" pageNumber="7">
|
||
Figs
|
||
<number box="[497,512,1805,1831]" pageId="6" pageNumber="7" value="4.0">4</number>
|
||
</figureCitation>
|
||
A–C,
|
||
<number box="[582,598,1805,1831]" pageId="6" pageNumber="7" value="6.0">6</number>
|
||
B). This vertebra is from the posterior part of the series, and is possibly the seventh or eighth. This positional identification is based on the relative position of the parapophysis, comparison to the complete dorsal series of
|
||
<taxonomicName authority="Campos et al. 2005" authorityName="Campos et al." authorityYear="2005" box="[695,1225,1882,1908]" class="Reptilia" family="Titanosauridae" genus="Trigonosaurus" higherTaxonomySource="GBIF" kingdom="Animalia" order="Saurischia" pageId="6" pageNumber="7" phylum="Chordata" rank="species" species="pricei">
|
||
<emphasis box="[695,953,1882,1907]" italics="true" pageId="6" pageNumber="7">Trigonosaurus pricei</emphasis>
|
||
(
|
||
<bibRefCitation author="Campos" box="[969,1215,1882,1908]" pageId="6" pageNumber="15" refString="Campos, D. A., Kellner, A. W. A., Bertini, R. J. & Santucci, R. M. (2005) On a titanosaurid (Dinosauria, Sauropoda) vertebral column from the Bauru Group, Late Cretaceous of Brazil. Arquivos do Museu Nacional, Rio de Janeiro, 63, 565 - 593." type="journal article" year="2005">
|
||
Campos
|
||
<emphasis box="[1079,1142,1882,1907]" italics="true" pageId="6" pageNumber="7">et al.</emphasis>
|
||
<number box="[1150,1215,1882,1908]" pageId="6" pageNumber="7" value="2005.0">2005</number>
|
||
</bibRefCitation>
|
||
)
|
||
</taxonomicName>
|
||
, and the fact that MCF-PVPH-
|
||
<number box="[309,352,1921,1947]" pageId="6" pageNumber="7" value="447.0">447</number>
|
||
/
|
||
<number box="[360,373,1921,1947]" pageId="6" pageNumber="7" value="2.0">2</number>
|
||
(see below) is clearly positioned more posteriorly within the vertebral column with respect to MCF-PVPH-
|
||
<number box="[344,388,1960,1986]" pageId="6" pageNumber="7" value="447.0">447</number>
|
||
/
|
||
<number box="[397,406,1960,1986]" pageId="6" pageNumber="7" value="1.0">1</number>
|
||
(MCF-PVPH-
|
||
<number box="[581,624,1960,1986]" pageId="6" pageNumber="7" value="447.0">447</number>
|
||
/
|
||
<number box="[633,646,1960,1986]" pageId="6" pageNumber="7" value="2.0">2</number>
|
||
is probably the ninth or tenth dorsal, assuming a total count of ten dorsals as in most titanosaurs [
|
||
<bibRefCitation author="Powell" box="[523,686,1998,2024]" pageId="6" pageNumber="15" refString="Powell, J. E. (2003) Revision of South American titanosaurid dinosaurs: palaeobiological, palaeobiogeographical and phylogenetic aspects. Records of the Queen Victoria Museum, Launceston, 111, 1 - 173." type="journal article" year="2003">
|
||
Powell
|
||
<number box="[618,686,1998,2024]" pageId="6" pageNumber="7" value="2003.0">2003</number>
|
||
</bibRefCitation>
|
||
]). The vertebral centrum possesses a convex anterior articular face, a concave posterior articular face that is wider than high, and dorsoventrally convex and anteroposteriorly concave lateral surfaces (
|
||
<figureCitation box="[659,723,190,216]" captionStart="FIGURE 4" captionStartId="4.[151,256,1038,1062]" captionTargetBox="[153,1430,276,1010]" captionTargetId="figure@4.[151,1436,271,1011]" captionTargetPageId="4" captionText="FIGURE 4. Barrosasaurus casamiquelai gen. et sp. nov., holotype (MCF-PVPH- 447 / 1). Posterior dorsal (seventh or eighth) vertebra in anterior (A), right lateral (B) and posterior (C) views. Abbreviations: acpl, anterior centroparapophyseal lamina; alp, aliform process; apcdl, accessory posterior centrodiapophyseal lamina; aspdl, anterior spinodiapophyseal lamina; d, diapophysis; nc, neural canal; pcdl, posterior centrodiapophyseal lamina; pcpl, posterior centroparapophyseal lamina; posl, postspinal lamina; pp, parapophysis; ppdl, paradiapophyseal lamina; prsl, prespinal lamina; prz, prezygapophysis; spol, spinopostzygapophyseal lamina; sprl, spinoprezygapophyseal lamina; tprl, intraprezygapophyseal lamina. Scale bar equals 10 cm." httpUri="https://zenodo.org/record/190133/files/figure.png" pageId="7" pageNumber="8">
|
||
Fig
|
||
<number box="[708,723,190,216]" pageId="7" pageNumber="8" value="4.0">4</number>
|
||
</figureCitation>
|
||
A–C). The elliptical pleurocoels are obliquely oriented such that their anterior halves are positioned more dorsally on the centrum that the posterior halves (
|
||
<figureCitation box="[1297,1371,229,255]" captionStart="FIGURE 4" captionStartId="4.[151,256,1038,1062]" captionTargetBox="[153,1430,276,1010]" captionTargetId="figure@4.[151,1436,271,1011]" captionTargetPageId="4" captionText="FIGURE 4. Barrosasaurus casamiquelai gen. et sp. nov., holotype (MCF-PVPH- 447 / 1). Posterior dorsal (seventh or eighth) vertebra in anterior (A), right lateral (B) and posterior (C) views. Abbreviations: acpl, anterior centroparapophyseal lamina; alp, aliform process; apcdl, accessory posterior centrodiapophyseal lamina; aspdl, anterior spinodiapophyseal lamina; d, diapophysis; nc, neural canal; pcdl, posterior centrodiapophyseal lamina; pcpl, posterior centroparapophyseal lamina; posl, postspinal lamina; pp, parapophysis; ppdl, paradiapophyseal lamina; prsl, prespinal lamina; prz, prezygapophysis; spol, spinopostzygapophyseal lamina; sprl, spinoprezygapophyseal lamina; tprl, intraprezygapophyseal lamina. Scale bar equals 10 cm." httpUri="https://zenodo.org/record/190133/files/figure.png" pageId="7" pageNumber="8">
|
||
Fig.
|
||
<number box="[1354,1371,229,255]" pageId="7" pageNumber="8" value="4.0">4</number>
|
||
</figureCitation>
|
||
B). A prominent longitudinal keel-like ridge is present on the ventral surface of the centrum (
|
||
<figureCitation box="[1171,1241,268,294]" captionStart="FIGURE 6" captionStartId="6.[151,255,622,646]" captionTargetBox="[159,1417,206,576]" captionTargetId="figure@6.[151,1436,194,598]" captionTargetPageId="6" captionText="FIGURE 6. Barrosasaurus casamiquelai gen. et sp. nov., holotype. Dorsal centra in ventral view: A, MCF-PVPH- 447 / 3; B, MCF-PVPH- 447 / 1; MCF-PVPH- 447 / 2. Abbreviation: vk, ventral keel. Scale bar equals 10 cm." httpUri="https://zenodo.org/record/190135/files/figure.png" pageId="7" pageNumber="8">
|
||
Fig.
|
||
<number box="[1225,1241,268,294]" pageId="7" pageNumber="8" value="6.0">6</number>
|
||
</figureCitation>
|
||
B).
|
||
</paragraph>
|
||
<caption httpUri="https://zenodo.org/record/190137/files/figure.png" pageId="7" pageNumber="8" targetBox="[234,1348,367,1798]" targetPageId="7">
|
||
<paragraph blockId="7.[151,1437,1822,1984]" pageId="7" pageNumber="8">
|
||
<emphasis bold="true" box="[151,291,1822,1846]" pageId="7" pageNumber="8">FIGURE 8.</emphasis>
|
||
Comparison among posterior dorsal vertebrae of some selected titanosaurs. A, B,
|
||
<taxonomicName class="Reptilia" genus="Barrosasaurus" higherTaxonomySource="CoL" kingdom="Animalia" order="Dinosauria" pageId="7" pageNumber="8" phylum="Chordata" rank="species" species="casamiquelai">
|
||
<emphasis italics="true" pageId="7" pageNumber="8">Barrosasaurus casamiquelai</emphasis>
|
||
</taxonomicName>
|
||
<emphasis bold="true" box="[300,475,1857,1881]" pageId="7" pageNumber="8">gen. et. sp. nov.</emphasis>
|
||
(holotype, MCF-PVPH-447/2), ninth or tenth dorsal in posterior (A) and right lateral (B) views. C, D,
|
||
<taxonomicName box="[289,554,1892,1915]" class="Reptilia" family="Titanosauridae" genus="Neuquensaurus" higherTaxonomySource="GBIF" kingdom="Animalia" order="Saurischia" pageId="7" pageNumber="8" phylum="Chordata" rank="species" species="australis">
|
||
<emphasis box="[289,554,1892,1915]" italics="true" pageId="7" pageNumber="8">Neuquensaurus australis</emphasis>
|
||
</taxonomicName>
|
||
(MCS-5), dorsal 9? in posterior (C) and right lateral (D) views. E, F,
|
||
<taxonomicName class="Reptilia" family="Titanosauridae" genus="Argyrosaurus" higherTaxonomySource="GBIF" kingdom="Animalia" order="Saurischia" pageId="7" pageNumber="8" phylum="Chordata" rank="species" species="superbus">
|
||
<emphasis italics="true" pageId="7" pageNumber="8">Argyrosaurus superbus</emphasis>
|
||
</taxonomicName>
|
||
(PVL 4628, MACN-CH 217), dorsal 10? in anterior (E) and right lateral (F) views. G,
|
||
<taxonomicName box="[1206,1436,1927,1950]" class="Reptilia" family="Titanosauridae" genus="Trigonosaurus" higherTaxonomySource="GBIF" kingdom="Animalia" order="Saurischia" pageId="7" pageNumber="8" phylum="Chordata" rank="species" species="pricei">
|
||
<emphasis box="[1206,1436,1927,1950]" italics="true" pageId="7" pageNumber="8">Trigonosaurus pricei</emphasis>
|
||
</taxonomicName>
|
||
(holotype, MCT-1488-R), dorsals 9 and 10 in left lateral view. Scale bar equals 10 cm.
|
||
</paragraph>
|
||
</caption>
|
||
<paragraph blockId="8.[151,1437,152,874]" pageId="8" pageNumber="9">
|
||
The neural arch is relatively short anteroposteriorly, and placed mostly on the anterior half of the centrum (
|
||
<figureCitation box="[160,236,190,216]" captionStart="FIGURE 4" captionStartId="4.[151,256,1038,1062]" captionTargetBox="[153,1430,276,1010]" captionTargetId="figure@4.[151,1436,271,1011]" captionTargetPageId="4" captionText="FIGURE 4. Barrosasaurus casamiquelai gen. et sp. nov., holotype (MCF-PVPH- 447 / 1). Posterior dorsal (seventh or eighth) vertebra in anterior (A), right lateral (B) and posterior (C) views. Abbreviations: acpl, anterior centroparapophyseal lamina; alp, aliform process; apcdl, accessory posterior centrodiapophyseal lamina; aspdl, anterior spinodiapophyseal lamina; d, diapophysis; nc, neural canal; pcdl, posterior centrodiapophyseal lamina; pcpl, posterior centroparapophyseal lamina; posl, postspinal lamina; pp, parapophysis; ppdl, paradiapophyseal lamina; prsl, prespinal lamina; prz, prezygapophysis; spol, spinopostzygapophyseal lamina; sprl, spinoprezygapophyseal lamina; tprl, intraprezygapophyseal lamina. Scale bar equals 10 cm." httpUri="https://zenodo.org/record/190133/files/figure.png" pageId="8" pageNumber="9">
|
||
Fig.
|
||
<number box="[220,236,190,216]" pageId="8" pageNumber="9" value="4.0">4</number>
|
||
</figureCitation>
|
||
A–C). At the base of the prespinal lamina (
|
||
<figureCitation box="[781,857,190,216]" captionStart="FIGURE 4" captionStartId="4.[151,256,1038,1062]" captionTargetBox="[153,1430,276,1010]" captionTargetId="figure@4.[151,1436,271,1011]" captionTargetPageId="4" captionText="FIGURE 4. Barrosasaurus casamiquelai gen. et sp. nov., holotype (MCF-PVPH- 447 / 1). Posterior dorsal (seventh or eighth) vertebra in anterior (A), right lateral (B) and posterior (C) views. Abbreviations: acpl, anterior centroparapophyseal lamina; alp, aliform process; apcdl, accessory posterior centrodiapophyseal lamina; aspdl, anterior spinodiapophyseal lamina; d, diapophysis; nc, neural canal; pcdl, posterior centrodiapophyseal lamina; pcpl, posterior centroparapophyseal lamina; posl, postspinal lamina; pp, parapophysis; ppdl, paradiapophyseal lamina; prsl, prespinal lamina; prz, prezygapophysis; spol, spinopostzygapophyseal lamina; sprl, spinoprezygapophyseal lamina; tprl, intraprezygapophyseal lamina. Scale bar equals 10 cm." httpUri="https://zenodo.org/record/190133/files/figure.png" pageId="8" pageNumber="9">
|
||
Fig.
|
||
<number box="[841,857,190,216]" pageId="8" pageNumber="9" value="4.0">4</number>
|
||
</figureCitation>
|
||
A, B, prsl), on both sides, a short and delicate ventrolaterally extending lamina is present, which ends near the medial border of the prezygapophyses (
|
||
<figureCitation captionStart="FIGURE 4" captionStartId="4.[151,256,1038,1062]" captionTargetBox="[153,1430,276,1010]" captionTargetId="figure@4.[151,1436,271,1011]" captionTargetPageId="4" captionText="FIGURE 4. Barrosasaurus casamiquelai gen. et sp. nov., holotype (MCF-PVPH- 447 / 1). Posterior dorsal (seventh or eighth) vertebra in anterior (A), right lateral (B) and posterior (C) views. Abbreviations: acpl, anterior centroparapophyseal lamina; alp, aliform process; apcdl, accessory posterior centrodiapophyseal lamina; aspdl, anterior spinodiapophyseal lamina; d, diapophysis; nc, neural canal; pcdl, posterior centrodiapophyseal lamina; pcpl, posterior centroparapophyseal lamina; posl, postspinal lamina; pp, parapophysis; ppdl, paradiapophyseal lamina; prsl, prespinal lamina; prz, prezygapophysis; spol, spinopostzygapophyseal lamina; sprl, spinoprezygapophyseal lamina; tprl, intraprezygapophyseal lamina. Scale bar equals 10 cm." httpUri="https://zenodo.org/record/190133/files/figure.png" pageId="8" pageNumber="9">
|
||
Fig.
|
||
<number box="[151,166,268,294]" pageId="8" pageNumber="9" value="4.0">4</number>
|
||
</figureCitation>
|
||
A, sprl?). These laminae may represent subdivisions of the prespinal lamina, vestiges of the spinoprezygapophyseal lamina, or both.
|
||
</paragraph>
|
||
<paragraph blockId="8.[151,1437,152,874]" pageId="8" pageNumber="9">
|
||
In anterior view, the prezygapophyses are transversely broad and anteroposteriorly short processes, and their articular facets face dorsomedially and converge ventrally (
|
||
<figureCitation box="[930,1003,384,410]" captionStart="FIGURE 4" captionStartId="4.[151,256,1038,1062]" captionTargetBox="[153,1430,276,1010]" captionTargetId="figure@4.[151,1436,271,1011]" captionTargetPageId="4" captionText="FIGURE 4. Barrosasaurus casamiquelai gen. et sp. nov., holotype (MCF-PVPH- 447 / 1). Posterior dorsal (seventh or eighth) vertebra in anterior (A), right lateral (B) and posterior (C) views. Abbreviations: acpl, anterior centroparapophyseal lamina; alp, aliform process; apcdl, accessory posterior centrodiapophyseal lamina; aspdl, anterior spinodiapophyseal lamina; d, diapophysis; nc, neural canal; pcdl, posterior centrodiapophyseal lamina; pcpl, posterior centroparapophyseal lamina; posl, postspinal lamina; pp, parapophysis; ppdl, paradiapophyseal lamina; prsl, prespinal lamina; prz, prezygapophysis; spol, spinopostzygapophyseal lamina; sprl, spinoprezygapophyseal lamina; tprl, intraprezygapophyseal lamina. Scale bar equals 10 cm." httpUri="https://zenodo.org/record/190133/files/figure.png" pageId="8" pageNumber="9">
|
||
Fig.
|
||
<number box="[987,1003,384,410]" pageId="8" pageNumber="9" value="4.0">4</number>
|
||
</figureCitation>
|
||
A, prz). Ventral to a well-developed intraprezygapophyseal lamina (
|
||
<figureCitation box="[518,588,422,448]" captionStart="FIGURE 4" captionStartId="4.[151,256,1038,1062]" captionTargetBox="[153,1430,276,1010]" captionTargetId="figure@4.[151,1436,271,1011]" captionTargetPageId="4" captionText="FIGURE 4. Barrosasaurus casamiquelai gen. et sp. nov., holotype (MCF-PVPH- 447 / 1). Posterior dorsal (seventh or eighth) vertebra in anterior (A), right lateral (B) and posterior (C) views. Abbreviations: acpl, anterior centroparapophyseal lamina; alp, aliform process; apcdl, accessory posterior centrodiapophyseal lamina; aspdl, anterior spinodiapophyseal lamina; d, diapophysis; nc, neural canal; pcdl, posterior centrodiapophyseal lamina; pcpl, posterior centroparapophyseal lamina; posl, postspinal lamina; pp, parapophysis; ppdl, paradiapophyseal lamina; prsl, prespinal lamina; prz, prezygapophysis; spol, spinopostzygapophyseal lamina; sprl, spinoprezygapophyseal lamina; tprl, intraprezygapophyseal lamina. Scale bar equals 10 cm." httpUri="https://zenodo.org/record/190133/files/figure.png" pageId="8" pageNumber="9">
|
||
Fig.
|
||
<number box="[573,588,422,448]" pageId="8" pageNumber="9" value="4.0">4</number>
|
||
</figureCitation>
|
||
A, tprl), a median septum separates two deep cavities. The parapophyses are almost level with the prezygapophyses and are connected by a short and horizontal prezygoparapophyseal lamina (
|
||
<figureCitation box="[246,316,500,526]" captionStart="FIGURE 4" captionStartId="4.[151,256,1038,1062]" captionTargetBox="[153,1430,276,1010]" captionTargetId="figure@4.[151,1436,271,1011]" captionTargetPageId="4" captionText="FIGURE 4. Barrosasaurus casamiquelai gen. et sp. nov., holotype (MCF-PVPH- 447 / 1). Posterior dorsal (seventh or eighth) vertebra in anterior (A), right lateral (B) and posterior (C) views. Abbreviations: acpl, anterior centroparapophyseal lamina; alp, aliform process; apcdl, accessory posterior centrodiapophyseal lamina; aspdl, anterior spinodiapophyseal lamina; d, diapophysis; nc, neural canal; pcdl, posterior centrodiapophyseal lamina; pcpl, posterior centroparapophyseal lamina; posl, postspinal lamina; pp, parapophysis; ppdl, paradiapophyseal lamina; prsl, prespinal lamina; prz, prezygapophysis; spol, spinopostzygapophyseal lamina; sprl, spinoprezygapophyseal lamina; tprl, intraprezygapophyseal lamina. Scale bar equals 10 cm." httpUri="https://zenodo.org/record/190133/files/figure.png" pageId="8" pageNumber="9">
|
||
Fig.
|
||
<number box="[301,316,500,526]" pageId="8" pageNumber="9" value="4.0">4</number>
|
||
</figureCitation>
|
||
A, prpl).
|
||
</paragraph>
|
||
<paragraph blockId="8.[151,1437,152,874]" pageId="8" pageNumber="9">
|
||
In both anterior and posterior views, distal to the union of the posterior spinodiapophyseal with the spinopostzygapophyseal laminae (
|
||
<figureCitation box="[576,652,577,603]" captionStart="FIGURE 4" captionStartId="4.[151,256,1038,1062]" captionTargetBox="[153,1430,276,1010]" captionTargetId="figure@4.[151,1436,271,1011]" captionTargetPageId="4" captionText="FIGURE 4. Barrosasaurus casamiquelai gen. et sp. nov., holotype (MCF-PVPH- 447 / 1). Posterior dorsal (seventh or eighth) vertebra in anterior (A), right lateral (B) and posterior (C) views. Abbreviations: acpl, anterior centroparapophyseal lamina; alp, aliform process; apcdl, accessory posterior centrodiapophyseal lamina; aspdl, anterior spinodiapophyseal lamina; d, diapophysis; nc, neural canal; pcdl, posterior centrodiapophyseal lamina; pcpl, posterior centroparapophyseal lamina; posl, postspinal lamina; pp, parapophysis; ppdl, paradiapophyseal lamina; prsl, prespinal lamina; prz, prezygapophysis; spol, spinopostzygapophyseal lamina; sprl, spinoprezygapophyseal lamina; tprl, intraprezygapophyseal lamina. Scale bar equals 10 cm." httpUri="https://zenodo.org/record/190133/files/figure.png" pageId="8" pageNumber="9">
|
||
Fig.
|
||
<number box="[635,652,577,603]" pageId="8" pageNumber="9" value="4.0">4</number>
|
||
</figureCitation>
|
||
B, pspdl, spol), small lateral expansions of the neural spine are present (
|
||
<figureCitation box="[256,332,616,642]" captionStart="FIGURE 4" captionStartId="4.[151,256,1038,1062]" captionTargetBox="[153,1430,276,1010]" captionTargetId="figure@4.[151,1436,271,1011]" captionTargetPageId="4" captionText="FIGURE 4. Barrosasaurus casamiquelai gen. et sp. nov., holotype (MCF-PVPH- 447 / 1). Posterior dorsal (seventh or eighth) vertebra in anterior (A), right lateral (B) and posterior (C) views. Abbreviations: acpl, anterior centroparapophyseal lamina; alp, aliform process; apcdl, accessory posterior centrodiapophyseal lamina; aspdl, anterior spinodiapophyseal lamina; d, diapophysis; nc, neural canal; pcdl, posterior centrodiapophyseal lamina; pcpl, posterior centroparapophyseal lamina; posl, postspinal lamina; pp, parapophysis; ppdl, paradiapophyseal lamina; prsl, prespinal lamina; prz, prezygapophysis; spol, spinopostzygapophyseal lamina; sprl, spinoprezygapophyseal lamina; tprl, intraprezygapophyseal lamina. Scale bar equals 10 cm." httpUri="https://zenodo.org/record/190133/files/figure.png" pageId="8" pageNumber="9">
|
||
Fig.
|
||
<number box="[314,332,616,642]" pageId="8" pageNumber="9" value="4.0">4</number>
|
||
</figureCitation>
|
||
, alp). These are probably homologous to the aliform processes of
|
||
<taxonomicName authority="Powell, 1990 (Martinez et al. 2004)" authorityName="Powell, 1990 (Martinez et al." authorityYear="2004" class="Reptilia" family="Titanosauridae" genus="Epachthosaurus" higherTaxonomySource="GBIF" kingdom="Animalia" order="Saurischia" pageId="8" pageNumber="9" phylum="Chordata" rank="species" species="sciuttoi">
|
||
<emphasis box="[1142,1437,616,641]" italics="true" pageId="8" pageNumber="9">Epachthosaurus sciuttoi</emphasis>
|
||
<bibRefCitation author="Powell" box="[151,305,654,680]" pageId="8" pageNumber="15" refString="Powell, J. E. (1990) Epachthosaurus sciuttoi (gen. et sp. nov.) un dinosaurio sauropodo del cretacico de Patagonia (Provincia de Chubut, Argentina). V Congreso Argentino de Paleontologia y Bioestratigrafia, Tucuman, Actas 1, pp. 123 - 128." type="journal article" year="1990">
|
||
Powell,
|
||
<number box="[246,305,654,680]" pageId="8" pageNumber="9" value="1990.0">1990</number>
|
||
</bibRefCitation>
|
||
(
|
||
<bibRefCitation author="Martinez" box="[319,558,654,680]" pageId="8" pageNumber="15" refString="Martinez, R. D., Gimenez, O., Rodriguez, J., Luna, M. & Lamanna, M. C. (2004) An articulated specimen of the basal titanosaurian (Dinosauria: Sauropoda) Epachthosaurus sciuttoi from the early Late Cretaceous Bajo Barreal Formation of Chubut Povince, Argentina. Journal of Vertebrate Paleontology, 24, 107 - 120." type="journal article" year="2004">
|
||
Martínez
|
||
<emphasis box="[434,484,655,680]" italics="true" pageId="8" pageNumber="9">et al</emphasis>
|
||
.
|
||
<number box="[498,558,654,680]" pageId="8" pageNumber="9" value="2004.0">2004</number>
|
||
</bibRefCitation>
|
||
)
|
||
</taxonomicName>
|
||
(
|
||
<figureCitation box="[582,651,654,680]" captionStart="FIGURE 4" captionStartId="4.[151,256,1038,1062]" captionTargetBox="[153,1430,276,1010]" captionTargetId="figure@4.[151,1436,271,1011]" captionTargetPageId="4" captionText="FIGURE 4. Barrosasaurus casamiquelai gen. et sp. nov., holotype (MCF-PVPH- 447 / 1). Posterior dorsal (seventh or eighth) vertebra in anterior (A), right lateral (B) and posterior (C) views. Abbreviations: acpl, anterior centroparapophyseal lamina; alp, aliform process; apcdl, accessory posterior centrodiapophyseal lamina; aspdl, anterior spinodiapophyseal lamina; d, diapophysis; nc, neural canal; pcdl, posterior centrodiapophyseal lamina; pcpl, posterior centroparapophyseal lamina; posl, postspinal lamina; pp, parapophysis; ppdl, paradiapophyseal lamina; prsl, prespinal lamina; prz, prezygapophysis; spol, spinopostzygapophyseal lamina; sprl, spinoprezygapophyseal lamina; tprl, intraprezygapophyseal lamina. Scale bar equals 10 cm." httpUri="https://zenodo.org/record/190133/files/figure.png" pageId="8" pageNumber="9">
|
||
Fig.
|
||
<number box="[636,651,654,680]" pageId="8" pageNumber="9" value="4.0">4</number>
|
||
</figureCitation>
|
||
A, C). In
|
||
<taxonomicName box="[760,933,655,680]" class="Reptilia" genus="Barrosasaurus" higherTaxonomySource="CoL" kingdom="Animalia" order="Dinosauria" pageId="8" pageNumber="3" phylum="Chordata" rank="genus" status="gen. nov.">
|
||
<emphasis box="[760,933,655,680]" italics="true" pageId="8" pageNumber="9">Barrosasaurus</emphasis>
|
||
</taxonomicName>
|
||
, the posterior spinodiapophyseal lamina of MCF-PVPH-
|
||
<number box="[312,356,693,719]" pageId="8" pageNumber="9" value="447.0">447</number>
|
||
/
|
||
<number box="[365,374,693,719]" pageId="8" pageNumber="9" value="1.0">1</number>
|
||
is more strongly expanded laterally than the anterior spinodiapophyseal lamina (
|
||
<figureCitation box="[1328,1399,693,719]" captionStart="FIGURE 4" captionStartId="4.[151,256,1038,1062]" captionTargetBox="[153,1430,276,1010]" captionTargetId="figure@4.[151,1436,271,1011]" captionTargetPageId="4" captionText="FIGURE 4. Barrosasaurus casamiquelai gen. et sp. nov., holotype (MCF-PVPH- 447 / 1). Posterior dorsal (seventh or eighth) vertebra in anterior (A), right lateral (B) and posterior (C) views. Abbreviations: acpl, anterior centroparapophyseal lamina; alp, aliform process; apcdl, accessory posterior centrodiapophyseal lamina; aspdl, anterior spinodiapophyseal lamina; d, diapophysis; nc, neural canal; pcdl, posterior centrodiapophyseal lamina; pcpl, posterior centroparapophyseal lamina; posl, postspinal lamina; pp, parapophysis; ppdl, paradiapophyseal lamina; prsl, prespinal lamina; prz, prezygapophysis; spol, spinopostzygapophyseal lamina; sprl, spinoprezygapophyseal lamina; tprl, intraprezygapophyseal lamina. Scale bar equals 10 cm." httpUri="https://zenodo.org/record/190133/files/figure.png" pageId="8" pageNumber="9">
|
||
Fig.
|
||
<number box="[1383,1399,693,719]" pageId="8" pageNumber="9" value="4.0">4</number>
|
||
</figureCitation>
|
||
A). The surfaces of these aliform processes are subrectangular in lateral view (
|
||
<figureCitation box="[1044,1116,732,758]" captionStart="FIGURE 4" captionStartId="4.[151,256,1038,1062]" captionTargetBox="[153,1430,276,1010]" captionTargetId="figure@4.[151,1436,271,1011]" captionTargetPageId="4" captionText="FIGURE 4. Barrosasaurus casamiquelai gen. et sp. nov., holotype (MCF-PVPH- 447 / 1). Posterior dorsal (seventh or eighth) vertebra in anterior (A), right lateral (B) and posterior (C) views. Abbreviations: acpl, anterior centroparapophyseal lamina; alp, aliform process; apcdl, accessory posterior centrodiapophyseal lamina; aspdl, anterior spinodiapophyseal lamina; d, diapophysis; nc, neural canal; pcdl, posterior centrodiapophyseal lamina; pcpl, posterior centroparapophyseal lamina; posl, postspinal lamina; pp, parapophysis; ppdl, paradiapophyseal lamina; prsl, prespinal lamina; prz, prezygapophysis; spol, spinopostzygapophyseal lamina; sprl, spinoprezygapophyseal lamina; tprl, intraprezygapophyseal lamina. Scale bar equals 10 cm." httpUri="https://zenodo.org/record/190133/files/figure.png" pageId="8" pageNumber="9">
|
||
Fig.
|
||
<number box="[1100,1116,732,758]" pageId="8" pageNumber="9" value="4.0">4</number>
|
||
</figureCitation>
|
||
B, alp), and are oriented in planes that converge dorsally in both anterior and posterior views (
|
||
<figureCitation box="[937,1008,770,796]" captionStart="FIGURE 4" captionStartId="4.[151,256,1038,1062]" captionTargetBox="[153,1430,276,1010]" captionTargetId="figure@4.[151,1436,271,1011]" captionTargetPageId="4" captionText="FIGURE 4. Barrosasaurus casamiquelai gen. et sp. nov., holotype (MCF-PVPH- 447 / 1). Posterior dorsal (seventh or eighth) vertebra in anterior (A), right lateral (B) and posterior (C) views. Abbreviations: acpl, anterior centroparapophyseal lamina; alp, aliform process; apcdl, accessory posterior centrodiapophyseal lamina; aspdl, anterior spinodiapophyseal lamina; d, diapophysis; nc, neural canal; pcdl, posterior centrodiapophyseal lamina; pcpl, posterior centroparapophyseal lamina; posl, postspinal lamina; pp, parapophysis; ppdl, paradiapophyseal lamina; prsl, prespinal lamina; prz, prezygapophysis; spol, spinopostzygapophyseal lamina; sprl, spinoprezygapophyseal lamina; tprl, intraprezygapophyseal lamina. Scale bar equals 10 cm." httpUri="https://zenodo.org/record/190133/files/figure.png" pageId="8" pageNumber="9">
|
||
Fig.
|
||
<number box="[993,1008,770,796]" pageId="8" pageNumber="9" value="4.0">4</number>
|
||
</figureCitation>
|
||
A, C). Lateral to the point where the anterior and posterior spinodiapophyseal laminae adjoin (
|
||
<figureCitation box="[836,909,809,835]" captionStart="FIGURE 4" captionStartId="4.[151,256,1038,1062]" captionTargetBox="[153,1430,276,1010]" captionTargetId="figure@4.[151,1436,271,1011]" captionTargetPageId="4" captionText="FIGURE 4. Barrosasaurus casamiquelai gen. et sp. nov., holotype (MCF-PVPH- 447 / 1). Posterior dorsal (seventh or eighth) vertebra in anterior (A), right lateral (B) and posterior (C) views. Abbreviations: acpl, anterior centroparapophyseal lamina; alp, aliform process; apcdl, accessory posterior centrodiapophyseal lamina; aspdl, anterior spinodiapophyseal lamina; d, diapophysis; nc, neural canal; pcdl, posterior centrodiapophyseal lamina; pcpl, posterior centroparapophyseal lamina; posl, postspinal lamina; pp, parapophysis; ppdl, paradiapophyseal lamina; prsl, prespinal lamina; prz, prezygapophysis; spol, spinopostzygapophyseal lamina; sprl, spinoprezygapophyseal lamina; tprl, intraprezygapophyseal lamina. Scale bar equals 10 cm." httpUri="https://zenodo.org/record/190133/files/figure.png" pageId="8" pageNumber="9">
|
||
Fig.
|
||
<number box="[893,909,809,835]" pageId="8" pageNumber="9" value="4.0">4</number>
|
||
</figureCitation>
|
||
B, aspdl, pspdl), on the dorsal surface of the diapophysis, a series of laterally diverging laminae is present.
|
||
</paragraph>
|
||
<caption ID-Table-UUID="DF49E1A5FFD7697EC6BE90ABFE25A2ED" httpUri="http://table.plazi.org/id/DF49E1A5FFD7697EC6BE90ABFE25A2ED" pageId="8" pageNumber="9" targetBox="[151,1437,1010,1607]" targetIsTable="true" targetPageId="8">
|
||
<paragraph blockId="8.[151,1437,924,983]" pageId="8" pageNumber="9">
|
||
<emphasis bold="true" box="[151,268,924,948]" pageId="8" pageNumber="9">TABLE 1.</emphasis>
|
||
Measurements of the holotype specimen, MCF-PVPH-447 of
|
||
<taxonomicName box="[956,1270,925,948]" class="Reptilia" genus="Barrosasaurus" higherTaxonomySource="CoL" kingdom="Animalia" order="Dinosauria" pageId="8" pageNumber="9" phylum="Chordata" rank="species" species="casamiquelai">
|
||
<emphasis box="[956,1270,925,948]" italics="true" pageId="8" pageNumber="9">Barrosasaurus casamiquelai</emphasis>
|
||
</taxonomicName>
|
||
gen. et sp nov. Measurements in mm.
|
||
</paragraph>
|
||
</caption>
|
||
<paragraph pageId="8" pageNumber="9">
|
||
<table box="[151,1437,1010,1607]" gridcols="4" gridrows="12" pageId="8" pageNumber="9">
|
||
<tr box="[151,1437,1010,1033]" gridrow="0" pageId="8" pageNumber="9" rowspan-0="1">
|
||
<th box="[726,961,1010,1033]" gridcol="1" gridrow="0" pageId="8" pageNumber="9">MCF-PVPH-447/3</th>
|
||
<th box="[978,1181,1010,1033]" gridcol="2" gridrow="0" pageId="8" pageNumber="9">MCF-PVPH-447/1</th>
|
||
<th box="[1212,1437,1010,1033]" gridcol="3" gridrow="0" pageId="8" pageNumber="9">MCF-PVPH-447/2</th>
|
||
</tr>
|
||
<tr box="[151,1437,1053,1076]" gridrow="1" pageId="8" pageNumber="9">
|
||
<th box="[151,702,1053,1076]" gridcol="0" gridrow="1" pageId="8" pageNumber="9">Centrum length (including condyle)</th>
|
||
<td box="[726,961,1053,1076]" gridcol="1" gridrow="1" pageId="8" pageNumber="9">170</td>
|
||
<td box="[978,1181,1053,1076]" gridcol="2" gridrow="1" pageId="8" pageNumber="9">270</td>
|
||
<td box="[1212,1437,1053,1076]" gridcol="3" gridrow="1" pageId="8" pageNumber="9">230</td>
|
||
</tr>
|
||
<tr box="[151,1437,1096,1119]" gridrow="2" pageId="8" pageNumber="9">
|
||
<th box="[151,702,1096,1119]" gridcol="0" gridrow="2" pageId="8" pageNumber="9">Anterior centrum height</th>
|
||
<td box="[726,961,1096,1119]" gridcol="1" gridrow="2" pageId="8" pageNumber="9">160</td>
|
||
<td box="[978,1181,1096,1119]" gridcol="2" gridrow="2" pageId="8" pageNumber="9">180</td>
|
||
<td box="[1212,1437,1096,1119]" gridcol="3" gridrow="2" pageId="8" pageNumber="9">185</td>
|
||
</tr>
|
||
<tr box="[151,1437,1138,1161]" gridrow="3" pageId="8" pageNumber="9">
|
||
<th box="[151,702,1138,1161]" gridcol="0" gridrow="3" pageId="8" pageNumber="9">Posterior centrum height</th>
|
||
<td box="[726,961,1138,1161]" gridcol="1" gridrow="3" pageId="8" pageNumber="9">--</td>
|
||
<td box="[978,1181,1138,1161]" gridcol="2" gridrow="3" pageId="8" pageNumber="9">200</td>
|
||
<td box="[1212,1437,1138,1161]" gridcol="3" gridrow="3" pageId="8" pageNumber="9">200</td>
|
||
</tr>
|
||
<tr box="[151,1437,1181,1204]" gridrow="4" pageId="8" pageNumber="9">
|
||
<th box="[151,702,1181,1204]" gridcol="0" gridrow="4" pageId="8" pageNumber="9">Posterior centrum width</th>
|
||
<td box="[726,961,1181,1204]" gridcol="1" gridrow="4" pageId="8" pageNumber="9">--</td>
|
||
<td box="[978,1181,1181,1204]" gridcol="2" gridrow="4" pageId="8" pageNumber="9">270</td>
|
||
<td box="[1212,1437,1181,1204]" gridcol="3" gridrow="4" pageId="8" pageNumber="9">280</td>
|
||
</tr>
|
||
<tr box="[151,1437,1224,1281]" gridrow="5" pageId="8" pageNumber="9">
|
||
<th box="[151,702,1224,1281]" gridcol="0" gridrow="5" pageId="8" pageNumber="9">Height from iintraprezygapophyseal laminae to the spine apex</th>
|
||
<td box="[726,961,1224,1281]" gridcol="1" gridrow="5" pageId="8" pageNumber="9">80</td>
|
||
<td box="[978,1181,1224,1281]" gridcol="2" gridrow="5" pageId="8" pageNumber="9">380</td>
|
||
<td box="[1212,1437,1224,1281]" gridcol="3" gridrow="5" pageId="8" pageNumber="9">320</td>
|
||
</tr>
|
||
<tr box="[151,1437,1301,1324]" gridrow="6" pageId="8" pageNumber="9">
|
||
<th box="[151,702,1301,1324]" gridcol="0" gridrow="6" pageId="8" pageNumber="9">External width between prezygapophyses</th>
|
||
<td box="[726,961,1301,1324]" gridcol="1" gridrow="6" pageId="8" pageNumber="9">300</td>
|
||
<td box="[978,1181,1301,1324]" gridcol="2" gridrow="6" pageId="8" pageNumber="9">250</td>
|
||
<td box="[1212,1437,1301,1324]" gridcol="3" gridrow="6" pageId="8" pageNumber="9">170</td>
|
||
</tr>
|
||
<tr box="[151,1437,1344,1367]" gridrow="7" pageId="8" pageNumber="9">
|
||
<th box="[151,702,1344,1367]" gridcol="0" gridrow="7" pageId="8" pageNumber="9">Length of the neural arch base</th>
|
||
<td box="[726,961,1344,1367]" gridcol="1" gridrow="7" pageId="8" pageNumber="9">75 (preserved)</td>
|
||
<td box="[978,1181,1344,1367]" gridcol="2" gridrow="7" pageId="8" pageNumber="9">120</td>
|
||
<td box="[1212,1437,1344,1367]" gridcol="3" gridrow="7" pageId="8" pageNumber="9">110</td>
|
||
</tr>
|
||
<tr box="[151,1437,1386,1409]" gridrow="8" pageId="8" pageNumber="9">
|
||
<th box="[151,702,1386,1409]" gridcol="0" gridrow="8" pageId="8" pageNumber="9">Anterior centrum width</th>
|
||
<td box="[726,961,1386,1409]" gridcol="1" gridrow="8" pageId="8" pageNumber="9">255</td>
|
||
<td box="[978,1181,1386,1409]" gridcol="2" gridrow="8" pageId="8" pageNumber="9">150 (estimated)|</td>
|
||
<td box="[1212,1437,1386,1409]" gridcol="3" gridrow="8" pageId="8" pageNumber="9">240 (estimated)</td>
|
||
</tr>
|
||
<tr box="[151,1437,1429,1452]" gridrow="9" pageId="8" pageNumber="9">
|
||
<th box="[151,702,1429,1452]" gridcol="0" gridrow="9" pageId="8" pageNumber="9">Spine maximum width (from aliform processes)</th>
|
||
<td box="[726,961,1429,1452]" gridcol="1" gridrow="9" pageId="8" pageNumber="9">--</td>
|
||
<td box="[978,1181,1429,1452]" gridcol="2" gridrow="9" pageId="8" pageNumber="9">160</td>
|
||
<td box="[1212,1437,1429,1452]" gridcol="3" gridrow="9" pageId="8" pageNumber="9">180 (estimated)</td>
|
||
</tr>
|
||
<tr box="[151,1437,1472,1529]" gridrow="10" pageId="8" pageNumber="9">
|
||
<th box="[151,702,1472,1529]" gridcol="0" gridrow="10" pageId="8" pageNumber="9">Distal neural spine height (from aliform process to top of neural spine)</th>
|
||
<td box="[726,961,1472,1529]" gridcol="1" gridrow="10" pageId="8" pageNumber="9">--</td>
|
||
<td box="[978,1181,1472,1529]" gridcol="2" gridrow="10" pageId="8" pageNumber="9">180 (preserved)</td>
|
||
<td box="[1212,1437,1472,1529]" gridcol="3" gridrow="10" pageId="8" pageNumber="9">90 (preserved)</td>
|
||
</tr>
|
||
<tr box="[151,1437,1549,1607]" gridrow="11" pageId="8" pageNumber="9">
|
||
<th box="[151,702,1549,1607]" gridcol="0" gridrow="11" pageId="8" pageNumber="9">Total heigth</th>
|
||
<td box="[726,961,1549,1607]" gridcol="1" gridrow="11" pageId="8" pageNumber="9">290 (without neural spine)</td>
|
||
<td box="[978,1181,1549,1607]" gridcol="2" gridrow="11" pageId="8" pageNumber="9">640</td>
|
||
<td box="[1212,1437,1549,1607]" gridcol="3" gridrow="11" pageId="8" pageNumber="9">630</td>
|
||
</tr>
|
||
</table>
|
||
</paragraph>
|
||
<paragraph blockId="8.[151,1437,1681,2016]" pageId="8" pageNumber="9">
|
||
The paradiapophyseal lamina is short (
|
||
<figureCitation box="[661,733,1681,1707]" captionStart="FIGURE 4" captionStartId="4.[151,256,1038,1062]" captionTargetBox="[153,1430,276,1010]" captionTargetId="figure@4.[151,1436,271,1011]" captionTargetPageId="4" captionText="FIGURE 4. Barrosasaurus casamiquelai gen. et sp. nov., holotype (MCF-PVPH- 447 / 1). Posterior dorsal (seventh or eighth) vertebra in anterior (A), right lateral (B) and posterior (C) views. Abbreviations: acpl, anterior centroparapophyseal lamina; alp, aliform process; apcdl, accessory posterior centrodiapophyseal lamina; aspdl, anterior spinodiapophyseal lamina; d, diapophysis; nc, neural canal; pcdl, posterior centrodiapophyseal lamina; pcpl, posterior centroparapophyseal lamina; posl, postspinal lamina; pp, parapophysis; ppdl, paradiapophyseal lamina; prsl, prespinal lamina; prz, prezygapophysis; spol, spinopostzygapophyseal lamina; sprl, spinoprezygapophyseal lamina; tprl, intraprezygapophyseal lamina. Scale bar equals 10 cm." httpUri="https://zenodo.org/record/190133/files/figure.png" pageId="8" pageNumber="9">
|
||
Fig.
|
||
<number box="[718,733,1681,1707]" pageId="8" pageNumber="9" value="4.0">4</number>
|
||
</figureCitation>
|
||
A, B, ppdl). An anterior centroparapophyseal lamina and a well-developed and obliquely oriented posterior centroparapophyseal lamina are present (
|
||
<figureCitation box="[1216,1289,1720,1746]" captionStart="FIGURE 4" captionStartId="4.[151,256,1038,1062]" captionTargetBox="[153,1430,276,1010]" captionTargetId="figure@4.[151,1436,271,1011]" captionTargetPageId="4" captionText="FIGURE 4. Barrosasaurus casamiquelai gen. et sp. nov., holotype (MCF-PVPH- 447 / 1). Posterior dorsal (seventh or eighth) vertebra in anterior (A), right lateral (B) and posterior (C) views. Abbreviations: acpl, anterior centroparapophyseal lamina; alp, aliform process; apcdl, accessory posterior centrodiapophyseal lamina; aspdl, anterior spinodiapophyseal lamina; d, diapophysis; nc, neural canal; pcdl, posterior centrodiapophyseal lamina; pcpl, posterior centroparapophyseal lamina; posl, postspinal lamina; pp, parapophysis; ppdl, paradiapophyseal lamina; prsl, prespinal lamina; prz, prezygapophysis; spol, spinopostzygapophyseal lamina; sprl, spinoprezygapophyseal lamina; tprl, intraprezygapophyseal lamina. Scale bar equals 10 cm." httpUri="https://zenodo.org/record/190133/files/figure.png" pageId="8" pageNumber="9">
|
||
Fig.
|
||
<number box="[1272,1289,1720,1746]" pageId="8" pageNumber="9" value="4.0">4</number>
|
||
</figureCitation>
|
||
, acpl, pcpl). Ventral to the diapophysis, the posterior centrodiapophyseal lamina is present (
|
||
<figureCitation box="[1134,1210,1758,1784]" captionStart="FIGURE 4" captionStartId="4.[151,256,1038,1062]" captionTargetBox="[153,1430,276,1010]" captionTargetId="figure@4.[151,1436,271,1011]" captionTargetPageId="4" captionText="FIGURE 4. Barrosasaurus casamiquelai gen. et sp. nov., holotype (MCF-PVPH- 447 / 1). Posterior dorsal (seventh or eighth) vertebra in anterior (A), right lateral (B) and posterior (C) views. Abbreviations: acpl, anterior centroparapophyseal lamina; alp, aliform process; apcdl, accessory posterior centrodiapophyseal lamina; aspdl, anterior spinodiapophyseal lamina; d, diapophysis; nc, neural canal; pcdl, posterior centrodiapophyseal lamina; pcpl, posterior centroparapophyseal lamina; posl, postspinal lamina; pp, parapophysis; ppdl, paradiapophyseal lamina; prsl, prespinal lamina; prz, prezygapophysis; spol, spinopostzygapophyseal lamina; sprl, spinoprezygapophyseal lamina; tprl, intraprezygapophyseal lamina. Scale bar equals 10 cm." httpUri="https://zenodo.org/record/190133/files/figure.png" pageId="8" pageNumber="9">
|
||
Fig.
|
||
<number box="[1193,1210,1758,1784]" pageId="8" pageNumber="9" value="4.0">4</number>
|
||
</figureCitation>
|
||
B, C, pcdl), and is slightly thinner than the posterior centroparapophyseal lamina. The nearly vertical accessory posterior centrodiapophyseal lamina (
|
||
<figureCitation box="[484,556,1836,1862]" captionStart="FIGURE 4" captionStartId="4.[151,256,1038,1062]" captionTargetBox="[153,1430,276,1010]" captionTargetId="figure@4.[151,1436,271,1011]" captionTargetPageId="4" captionText="FIGURE 4. Barrosasaurus casamiquelai gen. et sp. nov., holotype (MCF-PVPH- 447 / 1). Posterior dorsal (seventh or eighth) vertebra in anterior (A), right lateral (B) and posterior (C) views. Abbreviations: acpl, anterior centroparapophyseal lamina; alp, aliform process; apcdl, accessory posterior centrodiapophyseal lamina; aspdl, anterior spinodiapophyseal lamina; d, diapophysis; nc, neural canal; pcdl, posterior centrodiapophyseal lamina; pcpl, posterior centroparapophyseal lamina; posl, postspinal lamina; pp, parapophysis; ppdl, paradiapophyseal lamina; prsl, prespinal lamina; prz, prezygapophysis; spol, spinopostzygapophyseal lamina; sprl, spinoprezygapophyseal lamina; tprl, intraprezygapophyseal lamina. Scale bar equals 10 cm." httpUri="https://zenodo.org/record/190133/files/figure.png" pageId="8" pageNumber="9">
|
||
Fig.
|
||
<number box="[540,556,1836,1862]" pageId="8" pageNumber="9" value="4.0">4</number>
|
||
</figureCitation>
|
||
B, apcdl) divides the infradiapophyseal fossa and connects to the posterior centroparapophyseal lamina. The area between the anterior and posterior centroparapophyseal laminae is a shallow, triangular depression. The centropostzygapophyseal (
|
||
<figureCitation box="[909,984,1913,1939]" captionStart="FIGURE 4" captionStartId="4.[151,256,1038,1062]" captionTargetBox="[153,1430,276,1010]" captionTargetId="figure@4.[151,1436,271,1011]" captionTargetPageId="4" captionText="FIGURE 4. Barrosasaurus casamiquelai gen. et sp. nov., holotype (MCF-PVPH- 447 / 1). Posterior dorsal (seventh or eighth) vertebra in anterior (A), right lateral (B) and posterior (C) views. Abbreviations: acpl, anterior centroparapophyseal lamina; alp, aliform process; apcdl, accessory posterior centrodiapophyseal lamina; aspdl, anterior spinodiapophyseal lamina; d, diapophysis; nc, neural canal; pcdl, posterior centrodiapophyseal lamina; pcpl, posterior centroparapophyseal lamina; posl, postspinal lamina; pp, parapophysis; ppdl, paradiapophyseal lamina; prsl, prespinal lamina; prz, prezygapophysis; spol, spinopostzygapophyseal lamina; sprl, spinoprezygapophyseal lamina; tprl, intraprezygapophyseal lamina. Scale bar equals 10 cm." httpUri="https://zenodo.org/record/190133/files/figure.png" pageId="8" pageNumber="9">
|
||
Fig.
|
||
<number box="[967,984,1913,1939]" pageId="8" pageNumber="9" value="4.0">4</number>
|
||
</figureCitation>
|
||
B, C, cpol), spinopostzygapophyseal, posterior centrodiapophyseal, and the posterior spinodiapophyseal laminae enclose a deep, rhomboidal and dorsoventrally elongated fossa (
|
||
<figureCitation box="[525,595,1990,2016]" captionStart="FIGURE 4" captionStartId="4.[151,256,1038,1062]" captionTargetBox="[153,1430,276,1010]" captionTargetId="figure@4.[151,1436,271,1011]" captionTargetPageId="4" captionText="FIGURE 4. Barrosasaurus casamiquelai gen. et sp. nov., holotype (MCF-PVPH- 447 / 1). Posterior dorsal (seventh or eighth) vertebra in anterior (A), right lateral (B) and posterior (C) views. Abbreviations: acpl, anterior centroparapophyseal lamina; alp, aliform process; apcdl, accessory posterior centrodiapophyseal lamina; aspdl, anterior spinodiapophyseal lamina; d, diapophysis; nc, neural canal; pcdl, posterior centrodiapophyseal lamina; pcpl, posterior centroparapophyseal lamina; posl, postspinal lamina; pp, parapophysis; ppdl, paradiapophyseal lamina; prsl, prespinal lamina; prz, prezygapophysis; spol, spinopostzygapophyseal lamina; sprl, spinoprezygapophyseal lamina; tprl, intraprezygapophyseal lamina. Scale bar equals 10 cm." httpUri="https://zenodo.org/record/190133/files/figure.png" pageId="8" pageNumber="9">
|
||
Fig.
|
||
<number box="[579,595,1990,2016]" pageId="8" pageNumber="9" value="4.0">4</number>
|
||
</figureCitation>
|
||
B) that extends onto the posterior face of the transverse process.
|
||
</paragraph>
|
||
<paragraph blockId="9.[151,1437,152,2034]" pageId="9" pageNumber="10">
|
||
In posterior view (
|
||
<figureCitation box="[376,450,152,178]" captionStart="FIGURE 4" captionStartId="4.[151,256,1038,1062]" captionTargetBox="[153,1430,276,1010]" captionTargetId="figure@4.[151,1436,271,1011]" captionTargetPageId="4" captionText="FIGURE 4. Barrosasaurus casamiquelai gen. et sp. nov., holotype (MCF-PVPH- 447 / 1). Posterior dorsal (seventh or eighth) vertebra in anterior (A), right lateral (B) and posterior (C) views. Abbreviations: acpl, anterior centroparapophyseal lamina; alp, aliform process; apcdl, accessory posterior centrodiapophyseal lamina; aspdl, anterior spinodiapophyseal lamina; d, diapophysis; nc, neural canal; pcdl, posterior centrodiapophyseal lamina; pcpl, posterior centroparapophyseal lamina; posl, postspinal lamina; pp, parapophysis; ppdl, paradiapophyseal lamina; prsl, prespinal lamina; prz, prezygapophysis; spol, spinopostzygapophyseal lamina; sprl, spinoprezygapophyseal lamina; tprl, intraprezygapophyseal lamina. Scale bar equals 10 cm." httpUri="https://zenodo.org/record/190133/files/figure.png" pageId="9" pageNumber="10">
|
||
Fig.
|
||
<number box="[433,450,152,178]" pageId="9" pageNumber="10" value="4.0">4</number>
|
||
</figureCitation>
|
||
C), ventral to the postzygapophyses, the robust centropostzygapophyseal laminae enclose a deep depression that contains the neural canal (
|
||
<figureCitation box="[838,911,190,216]" captionStart="FIGURE 4" captionStartId="4.[151,256,1038,1062]" captionTargetBox="[153,1430,276,1010]" captionTargetId="figure@4.[151,1436,271,1011]" captionTargetPageId="4" captionText="FIGURE 4. Barrosasaurus casamiquelai gen. et sp. nov., holotype (MCF-PVPH- 447 / 1). Posterior dorsal (seventh or eighth) vertebra in anterior (A), right lateral (B) and posterior (C) views. Abbreviations: acpl, anterior centroparapophyseal lamina; alp, aliform process; apcdl, accessory posterior centrodiapophyseal lamina; aspdl, anterior spinodiapophyseal lamina; d, diapophysis; nc, neural canal; pcdl, posterior centrodiapophyseal lamina; pcpl, posterior centroparapophyseal lamina; posl, postspinal lamina; pp, parapophysis; ppdl, paradiapophyseal lamina; prsl, prespinal lamina; prz, prezygapophysis; spol, spinopostzygapophyseal lamina; sprl, spinoprezygapophyseal lamina; tprl, intraprezygapophyseal lamina. Scale bar equals 10 cm." httpUri="https://zenodo.org/record/190133/files/figure.png" pageId="9" pageNumber="10">
|
||
Fig.
|
||
<number box="[895,911,190,216]" pageId="9" pageNumber="10" value="4.0">4</number>
|
||
</figureCitation>
|
||
C, nc), which is roofed by a well developed intrapostzygapophyseal lamina (
|
||
<figureCitation box="[530,601,229,255]" captionStart="FIGURE 4" captionStartId="4.[151,256,1038,1062]" captionTargetBox="[153,1430,276,1010]" captionTargetId="figure@4.[151,1436,271,1011]" captionTargetPageId="4" captionText="FIGURE 4. Barrosasaurus casamiquelai gen. et sp. nov., holotype (MCF-PVPH- 447 / 1). Posterior dorsal (seventh or eighth) vertebra in anterior (A), right lateral (B) and posterior (C) views. Abbreviations: acpl, anterior centroparapophyseal lamina; alp, aliform process; apcdl, accessory posterior centrodiapophyseal lamina; aspdl, anterior spinodiapophyseal lamina; d, diapophysis; nc, neural canal; pcdl, posterior centrodiapophyseal lamina; pcpl, posterior centroparapophyseal lamina; posl, postspinal lamina; pp, parapophysis; ppdl, paradiapophyseal lamina; prsl, prespinal lamina; prz, prezygapophysis; spol, spinopostzygapophyseal lamina; sprl, spinoprezygapophyseal lamina; tprl, intraprezygapophyseal lamina. Scale bar equals 10 cm." httpUri="https://zenodo.org/record/190133/files/figure.png" pageId="9" pageNumber="10">
|
||
Fig.
|
||
<number box="[585,601,229,255]" pageId="9" pageNumber="10" value="4.0">4</number>
|
||
</figureCitation>
|
||
C, tpol). There are no postzygodiapophyseal laminae.
|
||
</paragraph>
|
||
<paragraph blockId="9.[151,1437,152,2034]" pageId="9" pageNumber="10">
|
||
The neural spine is tall, nearly vertical and transversely expanded. Because the distal end of the neural spine is missing, it is not possible to estimate its total height (see
|
||
<tableCitation box="[954,1043,306,332]" captionStart="TABLE 1" captionStartId="8.[151,241,924,948]" captionTargetBox="[151,1437,1010,1607]" captionTargetPageId="8" captionText="TABLE 1. Measurements of the holotype specimen, MCF-PVPH- 447 of Barrosasaurus casamiquelai gen. et sp nov. Measurements in mm." httpUri="http://table.plazi.org/id/DF49E1A5FFD7697EC6BE90ABFE25A2ED" pageId="9" pageNumber="10" tableUuid="DF49E1A5FFD7697EC6BE90ABFE25A2ED">
|
||
Table
|
||
<number box="[1029,1043,306,332]" pageId="9" pageNumber="10" value="1.0">1</number>
|
||
</tableCitation>
|
||
). In anterior view, the prespinal lamina is well-developed in its basal and mid segments (
|
||
<figureCitation box="[807,877,345,371]" captionStart="FIGURE 4" captionStartId="4.[151,256,1038,1062]" captionTargetBox="[153,1430,276,1010]" captionTargetId="figure@4.[151,1436,271,1011]" captionTargetPageId="4" captionText="FIGURE 4. Barrosasaurus casamiquelai gen. et sp. nov., holotype (MCF-PVPH- 447 / 1). Posterior dorsal (seventh or eighth) vertebra in anterior (A), right lateral (B) and posterior (C) views. Abbreviations: acpl, anterior centroparapophyseal lamina; alp, aliform process; apcdl, accessory posterior centrodiapophyseal lamina; aspdl, anterior spinodiapophyseal lamina; d, diapophysis; nc, neural canal; pcdl, posterior centrodiapophyseal lamina; pcpl, posterior centroparapophyseal lamina; posl, postspinal lamina; pp, parapophysis; ppdl, paradiapophyseal lamina; prsl, prespinal lamina; prz, prezygapophysis; spol, spinopostzygapophyseal lamina; sprl, spinoprezygapophyseal lamina; tprl, intraprezygapophyseal lamina. Scale bar equals 10 cm." httpUri="https://zenodo.org/record/190133/files/figure.png" pageId="9" pageNumber="10">
|
||
Fig.
|
||
<number box="[862,877,345,371]" pageId="9" pageNumber="10" value="4.0">4</number>
|
||
</figureCitation>
|
||
A, prsl). Towards the distal end of the preserved neural spine, the prespinal lamina splits into multiple low crests, which diverge distally. In posterior view (
|
||
<figureCitation box="[160,233,422,448]" captionStart="FIGURE 4" captionStartId="4.[151,256,1038,1062]" captionTargetBox="[153,1430,276,1010]" captionTargetId="figure@4.[151,1436,271,1011]" captionTargetPageId="4" captionText="FIGURE 4. Barrosasaurus casamiquelai gen. et sp. nov., holotype (MCF-PVPH- 447 / 1). Posterior dorsal (seventh or eighth) vertebra in anterior (A), right lateral (B) and posterior (C) views. Abbreviations: acpl, anterior centroparapophyseal lamina; alp, aliform process; apcdl, accessory posterior centrodiapophyseal lamina; aspdl, anterior spinodiapophyseal lamina; d, diapophysis; nc, neural canal; pcdl, posterior centrodiapophyseal lamina; pcpl, posterior centroparapophyseal lamina; posl, postspinal lamina; pp, parapophysis; ppdl, paradiapophyseal lamina; prsl, prespinal lamina; prz, prezygapophysis; spol, spinopostzygapophyseal lamina; sprl, spinoprezygapophyseal lamina; tprl, intraprezygapophyseal lamina. Scale bar equals 10 cm." httpUri="https://zenodo.org/record/190133/files/figure.png" pageId="9" pageNumber="10">
|
||
Fig.
|
||
<number box="[217,233,422,448]" pageId="9" pageNumber="10" value="4.0">4</number>
|
||
</figureCitation>
|
||
C, posl), the postspinal lamina is clearly less well-developed than is the prespinal lamina. The area bounded by the spinopostzygapophyseal and the postspinal laminae bears a series of short and robust, rib-like, nearly transversely extending laminae that converge laterally towards the postzygapophyses.
|
||
</paragraph>
|
||
<paragraph blockId="9.[151,1437,152,2034]" pageId="9" pageNumber="10">
|
||
In lateral view, a short and robust spinopostzygapophyseal lamina is well-developed (
|
||
<figureCitation box="[1206,1277,538,564]" captionStart="FIGURE 4" captionStartId="4.[151,256,1038,1062]" captionTargetBox="[153,1430,276,1010]" captionTargetId="figure@4.[151,1436,271,1011]" captionTargetPageId="4" captionText="FIGURE 4. Barrosasaurus casamiquelai gen. et sp. nov., holotype (MCF-PVPH- 447 / 1). Posterior dorsal (seventh or eighth) vertebra in anterior (A), right lateral (B) and posterior (C) views. Abbreviations: acpl, anterior centroparapophyseal lamina; alp, aliform process; apcdl, accessory posterior centrodiapophyseal lamina; aspdl, anterior spinodiapophyseal lamina; d, diapophysis; nc, neural canal; pcdl, posterior centrodiapophyseal lamina; pcpl, posterior centroparapophyseal lamina; posl, postspinal lamina; pp, parapophysis; ppdl, paradiapophyseal lamina; prsl, prespinal lamina; prz, prezygapophysis; spol, spinopostzygapophyseal lamina; sprl, spinoprezygapophyseal lamina; tprl, intraprezygapophyseal lamina. Scale bar equals 10 cm." httpUri="https://zenodo.org/record/190133/files/figure.png" pageId="9" pageNumber="10">
|
||
Fig.
|
||
<number box="[1261,1277,538,564]" pageId="9" pageNumber="10" value="4.0">4</number>
|
||
</figureCitation>
|
||
B, spol). Two spinodiapophyseal laminae are also present, and converge ventrally at their bases (
|
||
<figureCitation box="[1121,1192,577,603]" captionStart="FIGURE 4" captionStartId="4.[151,256,1038,1062]" captionTargetBox="[153,1430,276,1010]" captionTargetId="figure@4.[151,1436,271,1011]" captionTargetPageId="4" captionText="FIGURE 4. Barrosasaurus casamiquelai gen. et sp. nov., holotype (MCF-PVPH- 447 / 1). Posterior dorsal (seventh or eighth) vertebra in anterior (A), right lateral (B) and posterior (C) views. Abbreviations: acpl, anterior centroparapophyseal lamina; alp, aliform process; apcdl, accessory posterior centrodiapophyseal lamina; aspdl, anterior spinodiapophyseal lamina; d, diapophysis; nc, neural canal; pcdl, posterior centrodiapophyseal lamina; pcpl, posterior centroparapophyseal lamina; posl, postspinal lamina; pp, parapophysis; ppdl, paradiapophyseal lamina; prsl, prespinal lamina; prz, prezygapophysis; spol, spinopostzygapophyseal lamina; sprl, spinoprezygapophyseal lamina; tprl, intraprezygapophyseal lamina. Scale bar equals 10 cm." httpUri="https://zenodo.org/record/190133/files/figure.png" pageId="9" pageNumber="10">
|
||
Fig.
|
||
<number box="[1176,1192,577,603]" pageId="9" pageNumber="10" value="4.0">4</number>
|
||
</figureCitation>
|
||
B, aspdl, pspdl). The posterior spinodiapophyseal lamina contacts the spinopostzygapophyseal lamina at the mid height of the spine, whereas the anterior spinodiapophyseal lamina extends further dorsally, probably reaching the distal end of the spine. Between both spinodiapophyseal laminae, there is a deep, elongated fossa, which is deeper at the base of the spine than more distally (
|
||
<figureCitation box="[625,697,732,758]" captionStart="FIGURE 4" captionStartId="4.[151,256,1038,1062]" captionTargetBox="[153,1430,276,1010]" captionTargetId="figure@4.[151,1436,271,1011]" captionTargetPageId="4" captionText="FIGURE 4. Barrosasaurus casamiquelai gen. et sp. nov., holotype (MCF-PVPH- 447 / 1). Posterior dorsal (seventh or eighth) vertebra in anterior (A), right lateral (B) and posterior (C) views. Abbreviations: acpl, anterior centroparapophyseal lamina; alp, aliform process; apcdl, accessory posterior centrodiapophyseal lamina; aspdl, anterior spinodiapophyseal lamina; d, diapophysis; nc, neural canal; pcdl, posterior centrodiapophyseal lamina; pcpl, posterior centroparapophyseal lamina; posl, postspinal lamina; pp, parapophysis; ppdl, paradiapophyseal lamina; prsl, prespinal lamina; prz, prezygapophysis; spol, spinopostzygapophyseal lamina; sprl, spinoprezygapophyseal lamina; tprl, intraprezygapophyseal lamina. Scale bar equals 10 cm." httpUri="https://zenodo.org/record/190133/files/figure.png" pageId="9" pageNumber="10">
|
||
Fig.
|
||
<number box="[680,697,732,758]" pageId="9" pageNumber="10" value="4.0">4</number>
|
||
</figureCitation>
|
||
B).
|
||
</paragraph>
|
||
<paragraph blockId="9.[151,1437,152,2034]" pageId="9" pageNumber="10">
|
||
<emphasis box="[198,421,770,795]" italics="true" pageId="9" pageNumber="10">
|
||
MCF-PVPH-
|
||
<number box="[349,394,770,795]" pageId="9" pageNumber="10" value="447.0">447</number>
|
||
/
|
||
<number box="[408,421,770,795]" pageId="9" pageNumber="10" value="2.0">2</number>
|
||
</emphasis>
|
||
(
|
||
<figureCitation box="[438,508,770,796]" captionStart="FIGURE 5" captionStartId="5.[151,257,1698,1722]" captionTargetBox="[204,1387,214,1658]" captionTargetId="figure@5.[192,1398,194,1675]" captionTargetPageId="5" captionText="FIGURE 5. Barrosasaurus casamiquelai gen. et sp. nov., holotype (MCF-PVPH- 447 / 2). Posterior dorsal (ninth or tenth) vertebra in anterior (A), posterior (B), left (C), and right lateral (D) views. Abbreviations: acpl, anterior centroparapophyseal lamina; alp, aliform process; apcdl, accesory posterior centrodiapophyseal lamina; aspdl, anterior spinodiapophyseal lamina; f, fossa; nc, neural canal; p, pleurocoel; pcdl, posterior centrodiapophyseal lamina; pcpl, posterior centroparapophyseal lamina; podl, postzygodiapophyseal lamina; posl, postspinal lamina; prsl, prespinal lamina; prz, prezygapophysis; pz, postzygapophysis; r, rib; spol, spinoposztzygapophyseal lamina; sprl, spinoprezygapophyseal lamina; tl, transverse lamina. Scale bar equals 10 cm." httpUri="https://zenodo.org/record/190134/files/figure.png" pageId="9" pageNumber="10">
|
||
Fig.
|
||
<number box="[494,508,770,796]" pageId="9" pageNumber="10" value="5.0">5</number>
|
||
</figureCitation>
|
||
A–D). This is a posterior dorsal vertebra, possibly the ninth or the tenth of the column, based on comparison to dorsals nine and ten of
|
||
<taxonomicName box="[816,1063,809,834]" class="Reptilia" family="Titanosauridae" genus="Trigonosaurus" higherTaxonomySource="GBIF" kingdom="Animalia" order="Saurischia" pageId="9" pageNumber="10" phylum="Chordata" rank="species" species="pricei">
|
||
<emphasis box="[816,1063,809,834]" italics="true" pageId="9" pageNumber="10">Trigonosaurus pricei</emphasis>
|
||
</taxonomicName>
|
||
, which, unlike the immediately preceding vertebrae, have postzygodiapophyseal laminae (
|
||
<bibRefCitation author="Campos" box="[878,1129,848,874]" pageId="9" pageNumber="15" refString="Campos, D. A., Kellner, A. W. A., Bertini, R. J. & Santucci, R. M. (2005) On a titanosaurid (Dinosauria, Sauropoda) vertebral column from the Bauru Group, Late Cretaceous of Brazil. Arquivos do Museu Nacional, Rio de Janeiro, 63, 565 - 593." type="journal article" year="2005">
|
||
Campos
|
||
<emphasis box="[989,1045,848,873]" italics="true" pageId="9" pageNumber="10">et al</emphasis>
|
||
.
|
||
<number box="[1062,1129,848,874]" pageId="9" pageNumber="10" value="2005.0">2005</number>
|
||
</bibRefCitation>
|
||
). This vertebra is almost complete, lacking only the distal end of the neural spine and the left postzygapophysis. In this specimen, the head of the right rib is preserved fused to the transverse process, in contact with the corresponding diapophysis and parapophysis.
|
||
</paragraph>
|
||
<paragraph blockId="9.[151,1437,152,2034]" pageId="9" pageNumber="10">
|
||
The centrum of MCF-PVPH-
|
||
<number box="[552,596,1002,1028]" pageId="9" pageNumber="10" value="447.0">447</number>
|
||
/
|
||
<number box="[605,619,1002,1028]" pageId="9" pageNumber="10" value="2.0">2</number>
|
||
is strongly opistocoelous and wider than high. The lateral faces are anteroposteriorly excavated, bearing deep pleurocoels (
|
||
<figureCitation box="[817,889,1041,1067]" captionStart="FIGURE 5" captionStartId="5.[151,257,1698,1722]" captionTargetBox="[204,1387,214,1658]" captionTargetId="figure@5.[192,1398,194,1675]" captionTargetPageId="5" captionText="FIGURE 5. Barrosasaurus casamiquelai gen. et sp. nov., holotype (MCF-PVPH- 447 / 2). Posterior dorsal (ninth or tenth) vertebra in anterior (A), posterior (B), left (C), and right lateral (D) views. Abbreviations: acpl, anterior centroparapophyseal lamina; alp, aliform process; apcdl, accesory posterior centrodiapophyseal lamina; aspdl, anterior spinodiapophyseal lamina; f, fossa; nc, neural canal; p, pleurocoel; pcdl, posterior centrodiapophyseal lamina; pcpl, posterior centroparapophyseal lamina; podl, postzygodiapophyseal lamina; posl, postspinal lamina; prsl, prespinal lamina; prz, prezygapophysis; pz, postzygapophysis; r, rib; spol, spinoposztzygapophyseal lamina; sprl, spinoprezygapophyseal lamina; tl, transverse lamina. Scale bar equals 10 cm." httpUri="https://zenodo.org/record/190134/files/figure.png" pageId="9" pageNumber="10">
|
||
Fig.
|
||
<number box="[874,889,1041,1067]" pageId="9" pageNumber="10" value="5.0">5</number>
|
||
</figureCitation>
|
||
C, D), although these pleurocoels are slightly shorter anteroposteriorly than those of MCF-PVPH-
|
||
<number box="[777,821,1080,1106]" pageId="9" pageNumber="10" value="447.0">447</number>
|
||
/
|
||
<number box="[831,843,1080,1106]" pageId="9" pageNumber="10" value="3.0">3</number>
|
||
. Unlike the other vertebrae, the centrum of MCF- PVPH-
|
||
<number box="[236,279,1118,1144]" pageId="9" pageNumber="10" value="447.0">447</number>
|
||
/
|
||
<number box="[289,302,1118,1144]" pageId="9" pageNumber="10" value="2.0">2</number>
|
||
does not possess a ventral keel (
|
||
<figureCitation box="[684,755,1118,1144]" captionStart="FIGURE 6" captionStartId="6.[151,255,622,646]" captionTargetBox="[159,1417,206,576]" captionTargetId="figure@6.[151,1436,194,598]" captionTargetPageId="6" captionText="FIGURE 6. Barrosasaurus casamiquelai gen. et sp. nov., holotype. Dorsal centra in ventral view: A, MCF-PVPH- 447 / 3; B, MCF-PVPH- 447 / 1; MCF-PVPH- 447 / 2. Abbreviation: vk, ventral keel. Scale bar equals 10 cm." httpUri="https://zenodo.org/record/190135/files/figure.png" pageId="9" pageNumber="10">
|
||
Fig.
|
||
<number box="[739,755,1118,1144]" pageId="9" pageNumber="10" value="6.0">6</number>
|
||
</figureCitation>
|
||
C).
|
||
</paragraph>
|
||
<paragraph blockId="9.[151,1437,152,2034]" pageId="9" pageNumber="10">
|
||
The neural arch is anteroposteriorly short, and more strongly inclined anteriorly than those of the preceding vertebrae (
|
||
<figureCitation box="[401,471,1196,1222]" captionStart="FIGURE 5" captionStartId="5.[151,257,1698,1722]" captionTargetBox="[204,1387,214,1658]" captionTargetId="figure@5.[192,1398,194,1675]" captionTargetPageId="5" captionText="FIGURE 5. Barrosasaurus casamiquelai gen. et sp. nov., holotype (MCF-PVPH- 447 / 2). Posterior dorsal (ninth or tenth) vertebra in anterior (A), posterior (B), left (C), and right lateral (D) views. Abbreviations: acpl, anterior centroparapophyseal lamina; alp, aliform process; apcdl, accesory posterior centrodiapophyseal lamina; aspdl, anterior spinodiapophyseal lamina; f, fossa; nc, neural canal; p, pleurocoel; pcdl, posterior centrodiapophyseal lamina; pcpl, posterior centroparapophyseal lamina; podl, postzygodiapophyseal lamina; posl, postspinal lamina; prsl, prespinal lamina; prz, prezygapophysis; pz, postzygapophysis; r, rib; spol, spinoposztzygapophyseal lamina; sprl, spinoprezygapophyseal lamina; tl, transverse lamina. Scale bar equals 10 cm." httpUri="https://zenodo.org/record/190134/files/figure.png" pageId="9" pageNumber="10">
|
||
Fig.
|
||
<number box="[456,471,1196,1222]" pageId="9" pageNumber="10" value="5.0">5</number>
|
||
</figureCitation>
|
||
C, D). The posterior centrodiapophyseal lamina is weakly developed (
|
||
<figureCitation box="[1301,1372,1196,1222]" captionStart="FIGURE 5" captionStartId="5.[151,257,1698,1722]" captionTargetBox="[204,1387,214,1658]" captionTargetId="figure@5.[192,1398,194,1675]" captionTargetPageId="5" captionText="FIGURE 5. Barrosasaurus casamiquelai gen. et sp. nov., holotype (MCF-PVPH- 447 / 2). Posterior dorsal (ninth or tenth) vertebra in anterior (A), posterior (B), left (C), and right lateral (D) views. Abbreviations: acpl, anterior centroparapophyseal lamina; alp, aliform process; apcdl, accesory posterior centrodiapophyseal lamina; aspdl, anterior spinodiapophyseal lamina; f, fossa; nc, neural canal; p, pleurocoel; pcdl, posterior centrodiapophyseal lamina; pcpl, posterior centroparapophyseal lamina; podl, postzygodiapophyseal lamina; posl, postspinal lamina; prsl, prespinal lamina; prz, prezygapophysis; pz, postzygapophysis; r, rib; spol, spinoposztzygapophyseal lamina; sprl, spinoprezygapophyseal lamina; tl, transverse lamina. Scale bar equals 10 cm." httpUri="https://zenodo.org/record/190134/files/figure.png" pageId="9" pageNumber="10">
|
||
Fig.
|
||
<number box="[1357,1372,1196,1222]" pageId="9" pageNumber="10" value="5.0">5</number>
|
||
</figureCitation>
|
||
C, D, pcdl), as are the anterior and posterior centroparapophyseal laminae (
|
||
<figureCitation box="[988,1060,1234,1260]" captionStart="FIGURE 5" captionStartId="5.[151,257,1698,1722]" captionTargetBox="[204,1387,214,1658]" captionTargetId="figure@5.[192,1398,194,1675]" captionTargetPageId="5" captionText="FIGURE 5. Barrosasaurus casamiquelai gen. et sp. nov., holotype (MCF-PVPH- 447 / 2). Posterior dorsal (ninth or tenth) vertebra in anterior (A), posterior (B), left (C), and right lateral (D) views. Abbreviations: acpl, anterior centroparapophyseal lamina; alp, aliform process; apcdl, accesory posterior centrodiapophyseal lamina; aspdl, anterior spinodiapophyseal lamina; f, fossa; nc, neural canal; p, pleurocoel; pcdl, posterior centrodiapophyseal lamina; pcpl, posterior centroparapophyseal lamina; podl, postzygodiapophyseal lamina; posl, postspinal lamina; prsl, prespinal lamina; prz, prezygapophysis; pz, postzygapophysis; r, rib; spol, spinoposztzygapophyseal lamina; sprl, spinoprezygapophyseal lamina; tl, transverse lamina. Scale bar equals 10 cm." httpUri="https://zenodo.org/record/190134/files/figure.png" pageId="9" pageNumber="10">
|
||
Fig.
|
||
<number box="[1045,1060,1234,1260]" pageId="9" pageNumber="10" value="5.0">5</number>
|
||
</figureCitation>
|
||
C, D, acpl, pcpl). MCF-PVPH-
|
||
<number box="[151,197,1273,1299]" pageId="9" pageNumber="10" value="447.0">447</number>
|
||
/
|
||
<number box="[206,220,1273,1299]" pageId="9" pageNumber="10" value="2.0">2</number>
|
||
shows asymmetries in the pattern of laminae at the base of the neural arch. On the left side, on the lateral surface of the neural arch ventral to the diapophysis, several poorly developed laminae are present (
|
||
<figureCitation captionStart="FIGURE 5" captionStartId="5.[151,257,1698,1722]" captionTargetBox="[204,1387,214,1658]" captionTargetId="figure@5.[192,1398,194,1675]" captionTargetPageId="5" captionText="FIGURE 5. Barrosasaurus casamiquelai gen. et sp. nov., holotype (MCF-PVPH- 447 / 2). Posterior dorsal (ninth or tenth) vertebra in anterior (A), posterior (B), left (C), and right lateral (D) views. Abbreviations: acpl, anterior centroparapophyseal lamina; alp, aliform process; apcdl, accesory posterior centrodiapophyseal lamina; aspdl, anterior spinodiapophyseal lamina; f, fossa; nc, neural canal; p, pleurocoel; pcdl, posterior centrodiapophyseal lamina; pcpl, posterior centroparapophyseal lamina; podl, postzygodiapophyseal lamina; posl, postspinal lamina; prsl, prespinal lamina; prz, prezygapophysis; pz, postzygapophysis; r, rib; spol, spinoposztzygapophyseal lamina; sprl, spinoprezygapophyseal lamina; tl, transverse lamina. Scale bar equals 10 cm." httpUri="https://zenodo.org/record/190134/files/figure.png" pageId="9" pageNumber="10">
|
||
Fig.
|
||
<number box="[151,166,1350,1376]" pageId="9" pageNumber="10" value="5.0">5</number>
|
||
</figureCitation>
|
||
C), which are absent on the right side (
|
||
<figureCitation box="[619,688,1350,1376]" captionStart="FIGURE 5" captionStartId="5.[151,257,1698,1722]" captionTargetBox="[204,1387,214,1658]" captionTargetId="figure@5.[192,1398,194,1675]" captionTargetPageId="5" captionText="FIGURE 5. Barrosasaurus casamiquelai gen. et sp. nov., holotype (MCF-PVPH- 447 / 2). Posterior dorsal (ninth or tenth) vertebra in anterior (A), posterior (B), left (C), and right lateral (D) views. Abbreviations: acpl, anterior centroparapophyseal lamina; alp, aliform process; apcdl, accesory posterior centrodiapophyseal lamina; aspdl, anterior spinodiapophyseal lamina; f, fossa; nc, neural canal; p, pleurocoel; pcdl, posterior centrodiapophyseal lamina; pcpl, posterior centroparapophyseal lamina; podl, postzygodiapophyseal lamina; posl, postspinal lamina; prsl, prespinal lamina; prz, prezygapophysis; pz, postzygapophysis; r, rib; spol, spinoposztzygapophyseal lamina; sprl, spinoprezygapophyseal lamina; tl, transverse lamina. Scale bar equals 10 cm." httpUri="https://zenodo.org/record/190134/files/figure.png" pageId="9" pageNumber="10">
|
||
Fig.
|
||
<number box="[673,688,1350,1376]" pageId="9" pageNumber="10" value="5.0">5</number>
|
||
</figureCitation>
|
||
D). One of these laminae corresponds to the accessory posterior centrodiapophyseal lamina (
|
||
<figureCitation box="[484,554,1389,1415]" captionStart="FIGURE 5" captionStartId="5.[151,257,1698,1722]" captionTargetBox="[204,1387,214,1658]" captionTargetId="figure@5.[192,1398,194,1675]" captionTargetPageId="5" captionText="FIGURE 5. Barrosasaurus casamiquelai gen. et sp. nov., holotype (MCF-PVPH- 447 / 2). Posterior dorsal (ninth or tenth) vertebra in anterior (A), posterior (B), left (C), and right lateral (D) views. Abbreviations: acpl, anterior centroparapophyseal lamina; alp, aliform process; apcdl, accesory posterior centrodiapophyseal lamina; aspdl, anterior spinodiapophyseal lamina; f, fossa; nc, neural canal; p, pleurocoel; pcdl, posterior centrodiapophyseal lamina; pcpl, posterior centroparapophyseal lamina; podl, postzygodiapophyseal lamina; posl, postspinal lamina; prsl, prespinal lamina; prz, prezygapophysis; pz, postzygapophysis; r, rib; spol, spinoposztzygapophyseal lamina; sprl, spinoprezygapophyseal lamina; tl, transverse lamina. Scale bar equals 10 cm." httpUri="https://zenodo.org/record/190134/files/figure.png" pageId="9" pageNumber="10">
|
||
Fig.
|
||
<number box="[539,554,1389,1415]" pageId="9" pageNumber="10" value="5.0">5</number>
|
||
</figureCitation>
|
||
C, apcdl?). Another lamina oriented perpendicular to the putative accesory posterior centrodiapophyseal lamina is interpreted as the posterior centroparapophyseal lamina. In addition, MCF-PVPH-
|
||
<number box="[321,367,1466,1492]" pageId="9" pageNumber="10" value="447.0">447</number>
|
||
/
|
||
<number box="[377,391,1466,1492]" pageId="9" pageNumber="10" value="2.0">2</number>
|
||
possesses a conspicuous postzygodiapophyseal lamina (
|
||
<figureCitation box="[1124,1202,1466,1492]" captionStart="FIGURE 5" captionStartId="5.[151,257,1698,1722]" captionTargetBox="[204,1387,214,1658]" captionTargetId="figure@5.[192,1398,194,1675]" captionTargetPageId="5" captionText="FIGURE 5. Barrosasaurus casamiquelai gen. et sp. nov., holotype (MCF-PVPH- 447 / 2). Posterior dorsal (ninth or tenth) vertebra in anterior (A), posterior (B), left (C), and right lateral (D) views. Abbreviations: acpl, anterior centroparapophyseal lamina; alp, aliform process; apcdl, accesory posterior centrodiapophyseal lamina; aspdl, anterior spinodiapophyseal lamina; f, fossa; nc, neural canal; p, pleurocoel; pcdl, posterior centrodiapophyseal lamina; pcpl, posterior centroparapophyseal lamina; podl, postzygodiapophyseal lamina; posl, postspinal lamina; prsl, prespinal lamina; prz, prezygapophysis; pz, postzygapophysis; r, rib; spol, spinoposztzygapophyseal lamina; sprl, spinoprezygapophyseal lamina; tl, transverse lamina. Scale bar equals 10 cm." httpUri="https://zenodo.org/record/190134/files/figure.png" pageId="9" pageNumber="10">
|
||
Fig.
|
||
<number box="[1186,1202,1466,1492]" pageId="9" pageNumber="10" value="5.0">5</number>
|
||
</figureCitation>
|
||
D, podl), which is laterodorsally and anteriorly oriented, and which extends from the lateral margin of the postzygapophysis to the posterior margin of the diapophysis. Unlike MCF-PVPH-
|
||
<number box="[991,1039,1544,1570]" pageId="9" pageNumber="10" value="447.0">447</number>
|
||
/
|
||
<number box="[1052,1067,1544,1570]" pageId="9" pageNumber="10" value="1.0">1</number>
|
||
, the articular facets of the postzygapophyses face ventrally (
|
||
<figureCitation box="[547,617,1582,1608]" captionStart="FIGURE 5" captionStartId="5.[151,257,1698,1722]" captionTargetBox="[204,1387,214,1658]" captionTargetId="figure@5.[192,1398,194,1675]" captionTargetPageId="5" captionText="FIGURE 5. Barrosasaurus casamiquelai gen. et sp. nov., holotype (MCF-PVPH- 447 / 2). Posterior dorsal (ninth or tenth) vertebra in anterior (A), posterior (B), left (C), and right lateral (D) views. Abbreviations: acpl, anterior centroparapophyseal lamina; alp, aliform process; apcdl, accesory posterior centrodiapophyseal lamina; aspdl, anterior spinodiapophyseal lamina; f, fossa; nc, neural canal; p, pleurocoel; pcdl, posterior centrodiapophyseal lamina; pcpl, posterior centroparapophyseal lamina; podl, postzygodiapophyseal lamina; posl, postspinal lamina; prsl, prespinal lamina; prz, prezygapophysis; pz, postzygapophysis; r, rib; spol, spinoposztzygapophyseal lamina; sprl, spinoprezygapophyseal lamina; tl, transverse lamina. Scale bar equals 10 cm." httpUri="https://zenodo.org/record/190134/files/figure.png" pageId="9" pageNumber="10">
|
||
Fig.
|
||
<number box="[602,617,1582,1608]" pageId="9" pageNumber="10" value="5.0">5</number>
|
||
</figureCitation>
|
||
B). The transverse processes are laterodorsally directed, and placed in a higher position than the postzygapophyses.
|
||
</paragraph>
|
||
<paragraph blockId="9.[151,1437,152,2034]" pageId="9" pageNumber="10">
|
||
The neural spine is noticeably shorter anteroposteriorly than in MCF-PVPH-
|
||
<number box="[1120,1165,1660,1686]" pageId="9" pageNumber="10" value="447.0">447</number>
|
||
/
|
||
<number box="[1175,1184,1660,1686]" pageId="9" pageNumber="10" value="1.0">1</number>
|
||
. In anterior view, the prespinal lamina is well developed (
|
||
<figureCitation box="[573,642,1698,1724]" captionStart="FIGURE 5" captionStartId="5.[151,257,1698,1722]" captionTargetBox="[204,1387,214,1658]" captionTargetId="figure@5.[192,1398,194,1675]" captionTargetPageId="5" captionText="FIGURE 5. Barrosasaurus casamiquelai gen. et sp. nov., holotype (MCF-PVPH- 447 / 2). Posterior dorsal (ninth or tenth) vertebra in anterior (A), posterior (B), left (C), and right lateral (D) views. Abbreviations: acpl, anterior centroparapophyseal lamina; alp, aliform process; apcdl, accesory posterior centrodiapophyseal lamina; aspdl, anterior spinodiapophyseal lamina; f, fossa; nc, neural canal; p, pleurocoel; pcdl, posterior centrodiapophyseal lamina; pcpl, posterior centroparapophyseal lamina; podl, postzygodiapophyseal lamina; posl, postspinal lamina; prsl, prespinal lamina; prz, prezygapophysis; pz, postzygapophysis; r, rib; spol, spinoposztzygapophyseal lamina; sprl, spinoprezygapophyseal lamina; tl, transverse lamina. Scale bar equals 10 cm." httpUri="https://zenodo.org/record/190134/files/figure.png" pageId="9" pageNumber="10">
|
||
Fig.
|
||
<number box="[628,642,1698,1724]" pageId="9" pageNumber="10" value="5.0">5</number>
|
||
</figureCitation>
|
||
A, prsl). On the left side of the base of the prespinal lamina, a small oblique lamina is present, similar to that observed in MCF-PVPH-
|
||
<number box="[978,1024,1737,1763]" pageId="9" pageNumber="10" value="447.0">447</number>
|
||
/
|
||
<number box="[1034,1043,1737,1763]" pageId="9" pageNumber="10" value="1.0">1</number>
|
||
. This probably corresponds to a vestige of a spinoprezygapophyseal lamina (
|
||
<figureCitation box="[682,752,1776,1802]" captionStart="FIGURE 5" captionStartId="5.[151,257,1698,1722]" captionTargetBox="[204,1387,214,1658]" captionTargetId="figure@5.[192,1398,194,1675]" captionTargetPageId="5" captionText="FIGURE 5. Barrosasaurus casamiquelai gen. et sp. nov., holotype (MCF-PVPH- 447 / 2). Posterior dorsal (ninth or tenth) vertebra in anterior (A), posterior (B), left (C), and right lateral (D) views. Abbreviations: acpl, anterior centroparapophyseal lamina; alp, aliform process; apcdl, accesory posterior centrodiapophyseal lamina; aspdl, anterior spinodiapophyseal lamina; f, fossa; nc, neural canal; p, pleurocoel; pcdl, posterior centrodiapophyseal lamina; pcpl, posterior centroparapophyseal lamina; podl, postzygodiapophyseal lamina; posl, postspinal lamina; prsl, prespinal lamina; prz, prezygapophysis; pz, postzygapophysis; r, rib; spol, spinoposztzygapophyseal lamina; sprl, spinoprezygapophyseal lamina; tl, transverse lamina. Scale bar equals 10 cm." httpUri="https://zenodo.org/record/190134/files/figure.png" pageId="9" pageNumber="10">
|
||
Fig.
|
||
<number box="[738,752,1776,1802]" pageId="9" pageNumber="10" value="5.0">5</number>
|
||
</figureCitation>
|
||
A, sprl?). In addition, in the middle of the neural spine, a conspicuous lamina is observed extending perpendicular to the prespinal lamina (
|
||
<figureCitation box="[1108,1178,1814,1840]" captionStart="FIGURE 5" captionStartId="5.[151,257,1698,1722]" captionTargetBox="[204,1387,214,1658]" captionTargetId="figure@5.[192,1398,194,1675]" captionTargetPageId="5" captionText="FIGURE 5. Barrosasaurus casamiquelai gen. et sp. nov., holotype (MCF-PVPH- 447 / 2). Posterior dorsal (ninth or tenth) vertebra in anterior (A), posterior (B), left (C), and right lateral (D) views. Abbreviations: acpl, anterior centroparapophyseal lamina; alp, aliform process; apcdl, accesory posterior centrodiapophyseal lamina; aspdl, anterior spinodiapophyseal lamina; f, fossa; nc, neural canal; p, pleurocoel; pcdl, posterior centrodiapophyseal lamina; pcpl, posterior centroparapophyseal lamina; podl, postzygodiapophyseal lamina; posl, postspinal lamina; prsl, prespinal lamina; prz, prezygapophysis; pz, postzygapophysis; r, rib; spol, spinoposztzygapophyseal lamina; sprl, spinoprezygapophyseal lamina; tl, transverse lamina. Scale bar equals 10 cm." httpUri="https://zenodo.org/record/190134/files/figure.png" pageId="9" pageNumber="10">
|
||
Fig.
|
||
<number box="[1164,1178,1814,1840]" pageId="9" pageNumber="10" value="5.0">5</number>
|
||
</figureCitation>
|
||
A, tl). Further rib-like transversely extending laminae, parallel to, and shorter than, the former, are placed at different levels on the anterior surface of the neural spine (
|
||
<figureCitation box="[574,644,1892,1918]" captionStart="FIGURE 5" captionStartId="5.[151,257,1698,1722]" captionTargetBox="[204,1387,214,1658]" captionTargetId="figure@5.[192,1398,194,1675]" captionTargetPageId="5" captionText="FIGURE 5. Barrosasaurus casamiquelai gen. et sp. nov., holotype (MCF-PVPH- 447 / 2). Posterior dorsal (ninth or tenth) vertebra in anterior (A), posterior (B), left (C), and right lateral (D) views. Abbreviations: acpl, anterior centroparapophyseal lamina; alp, aliform process; apcdl, accesory posterior centrodiapophyseal lamina; aspdl, anterior spinodiapophyseal lamina; f, fossa; nc, neural canal; p, pleurocoel; pcdl, posterior centrodiapophyseal lamina; pcpl, posterior centroparapophyseal lamina; podl, postzygodiapophyseal lamina; posl, postspinal lamina; prsl, prespinal lamina; prz, prezygapophysis; pz, postzygapophysis; r, rib; spol, spinoposztzygapophyseal lamina; sprl, spinoprezygapophyseal lamina; tl, transverse lamina. Scale bar equals 10 cm." httpUri="https://zenodo.org/record/190134/files/figure.png" pageId="9" pageNumber="10">
|
||
Fig.
|
||
<number box="[629,644,1892,1918]" pageId="9" pageNumber="10" value="5.0">5</number>
|
||
</figureCitation>
|
||
A).
|
||
</paragraph>
|
||
<paragraph blockId="9.[151,1437,152,2034]" lastBlockId="10.[151,1437,152,410]" lastPageId="10" lastPageNumber="11" pageId="9" pageNumber="10">
|
||
In lateral view, a robust, anterior spinodiapophyseal lamina is present (
|
||
<figureCitation box="[1022,1090,1931,1957]" captionStart="FIGURE 5" captionStartId="5.[151,257,1698,1722]" captionTargetBox="[204,1387,214,1658]" captionTargetId="figure@5.[192,1398,194,1675]" captionTargetPageId="5" captionText="FIGURE 5. Barrosasaurus casamiquelai gen. et sp. nov., holotype (MCF-PVPH- 447 / 2). Posterior dorsal (ninth or tenth) vertebra in anterior (A), posterior (B), left (C), and right lateral (D) views. Abbreviations: acpl, anterior centroparapophyseal lamina; alp, aliform process; apcdl, accesory posterior centrodiapophyseal lamina; aspdl, anterior spinodiapophyseal lamina; f, fossa; nc, neural canal; p, pleurocoel; pcdl, posterior centrodiapophyseal lamina; pcpl, posterior centroparapophyseal lamina; podl, postzygodiapophyseal lamina; posl, postspinal lamina; prsl, prespinal lamina; prz, prezygapophysis; pz, postzygapophysis; r, rib; spol, spinoposztzygapophyseal lamina; sprl, spinoprezygapophyseal lamina; tl, transverse lamina. Scale bar equals 10 cm." httpUri="https://zenodo.org/record/190134/files/figure.png" pageId="9" pageNumber="10">
|
||
Fig.
|
||
<number box="[1076,1090,1931,1957]" pageId="9" pageNumber="10" value="5.0">5</number>
|
||
</figureCitation>
|
||
D, aspdl), which is bifurcated at both dorsal (spinal) and ventral (diapophyseal) ends. The posterior spinodiapophyseal lamina (
|
||
<figureCitation box="[1301,1372,1969,1995]" captionStart="FIGURE 5" captionStartId="5.[151,257,1698,1722]" captionTargetBox="[204,1387,214,1658]" captionTargetId="figure@5.[192,1398,194,1675]" captionTargetPageId="5" captionText="FIGURE 5. Barrosasaurus casamiquelai gen. et sp. nov., holotype (MCF-PVPH- 447 / 2). Posterior dorsal (ninth or tenth) vertebra in anterior (A), posterior (B), left (C), and right lateral (D) views. Abbreviations: acpl, anterior centroparapophyseal lamina; alp, aliform process; apcdl, accesory posterior centrodiapophyseal lamina; aspdl, anterior spinodiapophyseal lamina; f, fossa; nc, neural canal; p, pleurocoel; pcdl, posterior centrodiapophyseal lamina; pcpl, posterior centroparapophyseal lamina; podl, postzygodiapophyseal lamina; posl, postspinal lamina; prsl, prespinal lamina; prz, prezygapophysis; pz, postzygapophysis; r, rib; spol, spinoposztzygapophyseal lamina; sprl, spinoprezygapophyseal lamina; tl, transverse lamina. Scale bar equals 10 cm." httpUri="https://zenodo.org/record/190134/files/figure.png" pageId="9" pageNumber="10">
|
||
Fig.
|
||
<number box="[1357,1372,1969,1995]" pageId="9" pageNumber="10" value="5.0">5</number>
|
||
</figureCitation>
|
||
B, D, pspdl) is laterally less strongly developed than the anterior spinodiapophyseal lamina. Consequently, the aliform process is only partially visible in anterior view (
|
||
<figureCitation box="[867,941,152,178]" captionStart="FIGURE 5" captionStartId="5.[151,257,1698,1722]" captionTargetBox="[204,1387,214,1658]" captionTargetId="figure@5.[192,1398,194,1675]" captionTargetPageId="5" captionText="FIGURE 5. Barrosasaurus casamiquelai gen. et sp. nov., holotype (MCF-PVPH- 447 / 2). Posterior dorsal (ninth or tenth) vertebra in anterior (A), posterior (B), left (C), and right lateral (D) views. Abbreviations: acpl, anterior centroparapophyseal lamina; alp, aliform process; apcdl, accesory posterior centrodiapophyseal lamina; aspdl, anterior spinodiapophyseal lamina; f, fossa; nc, neural canal; p, pleurocoel; pcdl, posterior centrodiapophyseal lamina; pcpl, posterior centroparapophyseal lamina; podl, postzygodiapophyseal lamina; posl, postspinal lamina; prsl, prespinal lamina; prz, prezygapophysis; pz, postzygapophysis; r, rib; spol, spinoposztzygapophyseal lamina; sprl, spinoprezygapophyseal lamina; tl, transverse lamina. Scale bar equals 10 cm." httpUri="https://zenodo.org/record/190134/files/figure.png" pageId="10" pageNumber="11">
|
||
Fig.
|
||
<number box="[926,941,152,178]" pageId="10" pageNumber="11" value="5.0">5</number>
|
||
</figureCitation>
|
||
A, alp). The greater development of the anterior spinodiapophyseal lamina prevents the fossa enclosed by these laminae from being visible in anterior view (
|
||
<figureCitation box="[224,293,229,255]" captionStart="FIGURE 5" captionStartId="5.[151,257,1698,1722]" captionTargetBox="[204,1387,214,1658]" captionTargetId="figure@5.[192,1398,194,1675]" captionTargetPageId="5" captionText="FIGURE 5. Barrosasaurus casamiquelai gen. et sp. nov., holotype (MCF-PVPH- 447 / 2). Posterior dorsal (ninth or tenth) vertebra in anterior (A), posterior (B), left (C), and right lateral (D) views. Abbreviations: acpl, anterior centroparapophyseal lamina; alp, aliform process; apcdl, accesory posterior centrodiapophyseal lamina; aspdl, anterior spinodiapophyseal lamina; f, fossa; nc, neural canal; p, pleurocoel; pcdl, posterior centrodiapophyseal lamina; pcpl, posterior centroparapophyseal lamina; podl, postzygodiapophyseal lamina; posl, postspinal lamina; prsl, prespinal lamina; prz, prezygapophysis; pz, postzygapophysis; r, rib; spol, spinoposztzygapophyseal lamina; sprl, spinoprezygapophyseal lamina; tl, transverse lamina. Scale bar equals 10 cm." httpUri="https://zenodo.org/record/190134/files/figure.png" pageId="10" pageNumber="11">
|
||
Fig.
|
||
<number box="[278,293,229,255]" pageId="10" pageNumber="11" value="5.0">5</number>
|
||
</figureCitation>
|
||
B, D).
|
||
</paragraph>
|
||
<paragraph blockId="10.[151,1437,152,410]" pageId="10" pageNumber="11">
|
||
In posterior view, both the spinopostzygapophyseal and postspinal laminae are well-developed (
|
||
<figureCitation box="[1338,1409,268,294]" captionStart="FIGURE 5" captionStartId="5.[151,257,1698,1722]" captionTargetBox="[204,1387,214,1658]" captionTargetId="figure@5.[192,1398,194,1675]" captionTargetPageId="5" captionText="FIGURE 5. Barrosasaurus casamiquelai gen. et sp. nov., holotype (MCF-PVPH- 447 / 2). Posterior dorsal (ninth or tenth) vertebra in anterior (A), posterior (B), left (C), and right lateral (D) views. Abbreviations: acpl, anterior centroparapophyseal lamina; alp, aliform process; apcdl, accesory posterior centrodiapophyseal lamina; aspdl, anterior spinodiapophyseal lamina; f, fossa; nc, neural canal; p, pleurocoel; pcdl, posterior centrodiapophyseal lamina; pcpl, posterior centroparapophyseal lamina; podl, postzygodiapophyseal lamina; posl, postspinal lamina; prsl, prespinal lamina; prz, prezygapophysis; pz, postzygapophysis; r, rib; spol, spinoposztzygapophyseal lamina; sprl, spinoprezygapophyseal lamina; tl, transverse lamina. Scale bar equals 10 cm." httpUri="https://zenodo.org/record/190134/files/figure.png" pageId="10" pageNumber="11">
|
||
Fig.
|
||
<number box="[1394,1409,268,294]" pageId="10" pageNumber="11" value="5.0">5</number>
|
||
</figureCitation>
|
||
B, spol, posl). The spinopostzygapophyseal laminae have convex outlines in lateral view, unlike those of MCF- PVPH-
|
||
<number box="[242,288,345,371]" pageId="10" pageNumber="11" value="447.0">447</number>
|
||
/
|
||
<number box="[297,306,345,371]" pageId="10" pageNumber="11" value="1.0">1</number>
|
||
, which have a concave outline. Moreover, MCF-PVPH-
|
||
<number box="[977,1020,345,371]" pageId="10" pageNumber="11" value="447.0">447</number>
|
||
/
|
||
<number box="[1029,1042,345,371]" pageId="10" pageNumber="11" value="2.0">2</number>
|
||
lacks rib-like transverse laminae between the postspinal lamina and the spinopostzygapophyseal lamina.
|
||
</paragraph>
|
||
</subSubSection>
|
||
</treatment>
|
||
</document> |