154 lines
17 KiB
XML
154 lines
17 KiB
XML
<document id="FFD5978205EAF9CDDE2C920C5BFDEE44" ID-CLB-Dataset="24019" ID-DOI="10.1080/00222933.2018.1524032" ID-GBIF-Dataset="034ebcd9-efa7-416a-822c-b6aee0e57a1c" ID-ISSN="1464-5262" ID-Zenodo-Dep="3670229" IM.materialsCitations_approvedBy="felipe" IM.metadata_approvedBy="felipe" IM.tables_requiresApprovalFor="existingObjects,plazi" IM.taxonomicNames_approvedBy="felipe" checkinTime="1581941790231" checkinUser="valdenar" docAuthor="DeVries, Thomas J." docDate="2019" docId="03BB2338E360E212FE72A7025E88F973" docLanguage="en" docName="JNATHIST.53.25–26.1533–1584.pdf.imf" docOrigin="Journal of Natural History 53 (25)" docStyle="DocumentStyle:485A7191CD41D6261F41521A3380DC73.9:JNatHist.2017-.journal_article.1cover" docStyleId="485A7191CD41D6261F41521A3380DC73" docStyleName="JNatHist.2017-.journal_article.1cover" docStyleVersion="9" docTitle="Tristeirostoma DeVries 2019, gen. nov." docType="treatment" docVersion="22" lastPageNumber="1573" masterDocId="FF825B40E348E23BFFA1A1435A0CFFCC" masterDocTitle="Early Paleogene brackish-water molluscs from the Caballas Formation of the East Pisco Basin (Southern Peru)" masterLastPageNumber="1584" masterPageNumber="1533" pageNumber="1572" updateTime="1698783606523" updateUser="ExternalLinkService">
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<mods:mods id="2D28302B0E926FC6C572C20A9F0C5D5C" xmlns:mods="http://www.loc.gov/mods/v3">
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<mods:titleInfo id="07C506068C4FB52D0B614D54E80BEEDB">
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<mods:title id="5A65CE929EF37CC01B54A89B6EEE732C">Early Paleogene brackish-water molluscs from the Caballas Formation of the East Pisco Basin (Southern Peru)</mods:title>
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</mods:titleInfo>
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<mods:name id="AFC7E2F86678BECA8BE50BB9F8C53429" type="personal">
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<mods:role id="794FDD408CE3BAF419DF074535C3B548">
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<mods:roleTerm id="A3A3E502C810F9099D80F34090F49481">Author</mods:roleTerm>
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<mods:namePart id="13DD1CB08102A331DC3C14DD207C8986">DeVries, Thomas J.</mods:namePart>
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<mods:typeOfResource id="2E64A38B386C88E60FAFDE96DE8626CA">text</mods:typeOfResource>
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<mods:title id="947EA5210F2A25DF864EA0830C45F24E">Journal of Natural History</mods:title>
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</mods:titleInfo>
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<mods:part id="BF2906D6D59995EC10B542B3359B0745">
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<mods:date id="36BB84719D01492FE6EC532472F7007A">2019</mods:date>
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<mods:detail id="3F5388489FECD31F76D5A7DB951D5DC1" type="pubDate">
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<mods:number id="AE655445007ECC1BA01BADEACFB96B22">2018-12-17</mods:number>
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</mods:detail>
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<mods:detail id="0CB1A9BF8096A28264DDFCEC58D54CBF" type="volume">
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<mods:number id="8C04D5D4865E2C36525CB0CE59EB6D5C">53</mods:number>
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</mods:detail>
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<mods:detail id="9671A0F27D72968FE6D61F9FDB5FA995" type="issue">
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<mods:number id="15D82040C00F6CBDE714C546E2690FF5">25</mods:number>
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<mods:extent id="D3CCB01976ED8F16AB66CB6830BD1479" unit="page">
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<mods:start id="7B3D6ED349B21FE4E90067DEF472A443">1533</mods:start>
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<mods:end id="D67767704D269C9861F4686F3DFF9C78">1584</mods:end>
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</mods:extent>
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<mods:classification id="DD593C0657949483334AA6D24149C590">journal article</mods:classification>
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<mods:identifier id="08D787F8C6FFB0812DE2CC0B3E199A97" type="CLB-Dataset">24019</mods:identifier>
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<mods:identifier id="2A236244D0180924C42ABEB36B80D228" type="DOI">10.1080/00222933.2018.1524032</mods:identifier>
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<mods:identifier id="B5196084A0201B539BD953C868EBD516" type="GBIF-Dataset">034ebcd9-efa7-416a-822c-b6aee0e57a1c</mods:identifier>
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<mods:identifier id="06C23B74F717057AC0215E0386FF0D16" type="ISSN">1464-5262</mods:identifier>
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<mods:identifier id="B214BE0262F219A6C62D03E6B17F3BDC" type="Zenodo-Dep">3670229</mods:identifier>
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<treatment id="03BB2338E360E212FE72A7025E88F973" ID-DOI="http://doi.org/10.5281/zenodo.3671254" ID-GBIF-Taxon="162146483" ID-Zenodo-Dep="3671254" LSID="urn:lsid:plazi:treatment:03BB2338E360E212FE72A7025E88F973" httpUri="http://treatment.plazi.org/id/03BB2338E360E212FE72A7025E88F973" lastPageId="41" lastPageNumber="1573" pageId="40" pageNumber="1572">
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<subSubSection id="C308C1A5E360E213FE72A702595CF996" box="[467,848,1601,1626]" pageId="40" pageNumber="1572" type="nomenclature">
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<paragraph id="8BAD922EE360E213FE72A702595CF996" blockId="40.[393,921,1532,1626]" box="[467,848,1601,1626]" pageId="40" pageNumber="1572">
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<heading id="D0E52542E360E213FE72A702595CF996" box="[467,848,1601,1626]" pageId="40" pageNumber="1572">
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Genus
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<taxonomicName id="4C12E9ADE360E213FD86A70258D4F996" authority="DeVries, 2019" authorityName="DeVries" authorityYear="2019" box="[551,728,1601,1626]" class="Gastropoda" family="Fasciolariidae" genus="Tristeirostoma" higherTaxonomySource="GBIF" kingdom="Animalia" order="Neogastropoda" pageId="40" pageNumber="1572" phylum="Mollusca" rank="genus" status="gen. nov.">
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<emphasis id="B9664E3CE360E213FD86A70258D4F996" bold="true" box="[551,728,1601,1626]" italics="true" pageId="40" pageNumber="1572">Tristeirostoma</emphasis>
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</taxonomicName>
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<taxonomicNameLabel id="A255F347E360E213FD40A702595CF996" box="[737,848,1601,1626]" pageId="40" pageNumber="1572" rank="genus">gen. nov.</taxonomicNameLabel>
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</heading>
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</paragraph>
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</subSubSection>
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<subSubSection id="C308C1A5E360E213FF01A7C6590BF973" pageId="40" pageNumber="1572" type="reference_group">
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<paragraph id="8BAD922EE360E213FF01A7C6590BF973" blockId="40.[160,1098,1669,1727]" pageId="40" pageNumber="1572">
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<typeStatus id="54A92C8CE360E213FF01A7C65ADAF951" box="[160,214,1669,1693]" pageId="40" pageNumber="1572">Type</typeStatus>
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species:
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<taxonomicName id="4C12E9ADE360E213FE9EA7C6587BF951" authority="DeVries, 2019" authorityName="DeVries" authorityYear="2019" box="[319,631,1669,1693]" class="Gastropoda" family="Fasciolariidae" genus="Tristeirostoma" higherTaxonomySource="GBIF" kingdom="Animalia" order="Neogastropoda" pageId="40" pageNumber="1572" phylum="Mollusca" rank="species" species="saxaquadrata" status="sp. nov.">
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<emphasis id="B9664E3CE360E213FE9EA7C6587BF951" box="[319,631,1669,1693]" italics="true" pageId="40" pageNumber="1572">Tristeirostoma saxaquadrata</emphasis>
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</taxonomicName>
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<taxonomicNameLabel id="A255F347E360E213FD21A7C658D5F951" box="[640,729,1669,1693]" pageId="40" pageNumber="1572" rank="species">sp. nov.</taxonomicNameLabel>
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Early Paleogene, southern
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<collectingCountry id="F305D2BEE360E213FBB1A7C65E4AF951" box="[1040,1094,1669,1693]" name="Peru" pageId="40" pageNumber="1572">Peru</collectingCountry>
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. Species included:
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<taxonomicName id="4C12E9ADE360E213FECDA7E458A9F973" authority="DeVries, 2019" authorityName="DeVries" authorityYear="2019" box="[364,677,1703,1727]" class="Gastropoda" family="Fasciolariidae" genus="Tristeirostoma" higherTaxonomySource="GBIF" kingdom="Animalia" order="Neogastropoda" pageId="40" pageNumber="1572" phylum="Mollusca" rank="species" species="saxaquadrata" status="sp. nov.">
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<emphasis id="B9664E3CE360E213FECDA7E458A9F973" box="[364,677,1703,1727]" italics="true" pageId="40" pageNumber="1572">Tristeirostoma saxaquadrata</emphasis>
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</taxonomicName>
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<taxonomicNameLabel id="A255F347E360E213FD0FA7E4590BF973" box="[686,775,1703,1727]" pageId="40" pageNumber="1572" rank="species">sp. nov.</taxonomicNameLabel>
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</paragraph>
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</subSubSection>
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<subSubSection id="C308C1A5E361E212FF01A1CE5B3CFEC3" pageId="41" pageNumber="1573" type="diagnosis">
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<paragraph id="8BAD922EE361E212FF01A1CE5B18FF6B" blockId="41.[160,1155,141,271]" box="[160,276,141,167]" pageId="41" pageNumber="1573">
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<emphasis id="B9664E3CE361E212FF01A1CE5B18FF6B" bold="true" box="[160,276,141,167]" italics="true" pageId="41" pageNumber="1573">Diagnosis</emphasis>
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</paragraph>
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<paragraph id="8BAD922EE361E212FF01A1F15B3CFEC3" blockId="41.[160,1155,141,271]" pageId="41" pageNumber="1573">Shell small, stoutly fusiform. Spiral sculpture of beaded cords; beads aligned axially in sinuous pattern, interrupted by opisthocline axial ribs. Columella with three parallel keeled folds.</paragraph>
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</subSubSection>
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<subSubSection id="C308C1A5E361E212FF01A0005AF0FD31" pageId="41" pageNumber="1573" type="description">
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<paragraph id="8BAD922EE361E212FF01A0005B2AFE91" blockId="41.[160,1156,323,765]" box="[160,294,323,349]" pageId="41" pageNumber="1573">
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<emphasis id="B9664E3CE361E212FF01A0005B2AFE91" bold="true" box="[160,294,323,349]" italics="true" pageId="41" pageNumber="1573">Description</emphasis>
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</paragraph>
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<paragraph id="8BAD922EE361E212FF01A02B5AF0FD31" blockId="41.[160,1156,323,765]" pageId="41" pageNumber="1573">Shell length less than 15 mm, stoutly fusiform, thick-shelled. Spire angle about 35°. Protoconch unknown. Teleoconch with six to seven whorls; whorls weakly convex, sutures impressed. Shoulder evenly rounded. Spire whorls with five beaded spiral cords, equally strong and spaced. Anterior and base of last whorl with seven additional equally spaced, beaded, spiral cords and one basal unbeaded spiral cord. Axial sculpture of 10 opisthocline, broadly rounded axial ribs weakly crossed by beaded spiral cords; axial interspaces twice as wide as ribs; ribs end half way between shoulder and base. Aperture elongate, lozenge-shaped. Parietal deposits absent; columella with three equally spaced, keeled, parallel folds descending from aperture at angle of 30°; anterior keel adjacent to poorly preserved spatulate outer lip or weakly developed anterior canal, weaker than two posterior columellar folds. Outer lip partly missing, inner surface smooth.</paragraph>
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</subSubSection>
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<subSubSection id="C308C1A5E361E212FF01A2725B4CFA12" pageId="41" pageNumber="1573" type="discussion">
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<paragraph id="8BAD922EE361E212FF01A2725B0AFC87" blockId="41.[160,1156,817,1502]" box="[160,262,817,843]" pageId="41" pageNumber="1573">
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<emphasis id="B9664E3CE361E212FF01A2725B0AFC87" bold="true" box="[160,262,817,843]" italics="true" pageId="41" pageNumber="1573">Remarks</emphasis>
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</paragraph>
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<paragraph id="8BAD922EE361E212FF01A2155E77FB6A" blockId="41.[160,1156,817,1502]" pageId="41" pageNumber="1573">
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The genus
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<taxonomicName id="4C12E9ADE361E212FE80A2155BB7FCA2" authority="DeVries, 2019" authorityName="DeVries" authorityYear="2019" box="[289,443,854,878]" class="Gastropoda" family="Fasciolariidae" genus="Tristeirostoma" higherTaxonomySource="GBIF" kingdom="Animalia" order="Neogastropoda" pageId="41" pageNumber="1573" phylum="Mollusca" rank="genus" status="gen. nov.">
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<emphasis id="B9664E3CE361E212FE80A2155BB7FCA2" box="[289,443,854,878]" italics="true" pageId="41" pageNumber="1573">Tristeirostoma</emphasis>
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</taxonomicName>
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<taxonomicNameLabel id="A255F347E361E212FE65A2155823FCA2" box="[452,559,854,878]" pageId="41" pageNumber="1573" rank="genus">gen. nov.</taxonomicNameLabel>
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is distinguished by its three columellar keels and a distinctive pattern of smoothed axial ribs set against a backdrop of axially and spirally aligned beads. While axial sculpture is rare among pyramidelloids, pyramidellid species of
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<taxonomicName id="4C12E9ADE361E212FF60A2FD5BC2FC1A" authority="Fischeri 1885" authorityName="Fischeri" authorityYear="1885" box="[193,462,958,982]" class="Gastropoda" family="Pyramidellidae" genus="Otopleura" kingdom="Animalia" pageId="41" pageNumber="1573" phylum="Mollusca" rank="genus">
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<emphasis id="B9664E3CE361E212FF60A2FD5B22FC1A" box="[193,302,958,982]" italics="true" pageId="41" pageNumber="1573">Otopleura</emphasis>
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Fischer, 1885
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</taxonomicName>
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, do have both spiral and axial sculpture. As is the case for many pyramidellids, however, the posteriormost columellar fold of
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<taxonomicName id="4C12E9ADE361E212FC35A2A25E0DFC35" authorityName="Fischeri" authorityYear="1885" box="[916,1025,993,1017]" class="Gastropoda" family="Pyramidellidae" genus="Otopleura" kingdom="Animalia" pageId="41" pageNumber="1573" phylum="Mollusca" rank="genus">
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<emphasis id="B9664E3CE361E212FC35A2A25E0DFC35" box="[916,1025,993,1017]" italics="true" pageId="41" pageNumber="1573">Otopleura</emphasis>
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</taxonomicName>
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is stronger, unequally spaced, and not parallel with the two anterior folds. The species from the Caballas Formation, in contrast, has three columellar folds that are equally spaced and parallel to one other. The two folds across the columellar midsection are equally strong, whereas the anterior fold, which borders a poorly preserved anterior declivity that may be a spatulate portion of a continuous outer lip or a shallow anterior canal, is weaker.
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</paragraph>
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<paragraph id="8BAD922EE361E212FF61A5F25B4CFA12" blockId="41.[160,1156,817,1502]" pageId="41" pageNumber="1573">
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The three parallel columellar folds are arranged in a manner typical of most species of Acteonellidae Gill,
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<date id="FFACB4EEE361E212FED0A5905BA2FB27" box="[369,430,1235,1259]" pageId="41" pageNumber="1573" value="1871-01">1871,</date>
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a group of heterobranch gastropods that became extinct by the end of the Cretaceous (
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<bibRefCitation id="EF83EFDFE361E212FE10A5B558B2FAC2" author="Sohl NFi Kollman HA" box="[433,702,1270,1294]" pageId="41" pageNumber="1573" pagination="1 - 104" refId="ref26445" refString="Sohl NFi Kollman HA. 1985. Cretaceous acteonellid gastropods from the Western Hemisphere. US Geol Survey Prof Pap. 1304: 1 - 104." type="journal article" year="1985">Sohl and Kollman 1985</bibRefCitation>
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;
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<bibRefCitation id="EF83EFDFE361E212FD6FA5B55966FAC2" author="Kollman HA" box="[718,874,1270,1294]" pageId="41" pageNumber="1573" pagination="349 - 383" refId="ref24437" refString="Kollman HA. 2014. The extinct Nerineoidea and Acteonellioidea (Heterobranchiai Gastropoda): a paleobiological approach. Geodiversitas. 36 (3): 349 - 383." type="journal article" year="2014">Kollman 2014</bibRefCitation>
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). Acteonellids are abundantly present in an Upper Cretaceous limestone of the La Mesa Formation in the Sechura Basin of northern
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<collectingCountry id="F305D2BEE361E212FE79A4785807FA9F" box="[472,523,1339,1363]" name="Peru" pageId="41" pageNumber="1573">Peru</collectingCountry>
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(
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<bibRefCitation id="EF83EFDFE361E212FDBDA47858A6FA9F" author="Olsson AA" box="[540,682,1339,1363]" pageId="41" pageNumber="1573" pagination="1 - 147" refId="ref25769" refString="Olsson AA. 1944. Contributions to the Tertiary paleontology of northern Peru. Part VII. The Cretaceous of the Paita region. Bulletins Am Paleontol. 19 (68): 1 - 147." type="journal article" year="1944">Olsson 1944</bibRefCitation>
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; Jaillard et al. 2005). Acteonellids, which include the North American Maastrichtian
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<emphasis id="B9664E3CE361E212FD14A41D598FFABA" box="[693,899,1374,1398]" italics="true" pageId="41" pageNumber="1573">Mexicotrochacteon</emphasis>
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Akopian,
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<date id="FFACB4EEE361E212FBABA41D5E4BFABA" box="[1034,1095,1374,1398]" pageId="41" pageNumber="1573" value="1972-01">1972,</date>
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and
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<emphasis id="B9664E3CE361E212FF01A4C35B1DFA54" box="[160,273,1408,1432]" italics="true" pageId="41" pageNumber="1573">Acteonella</emphasis>
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d
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<emphasis id="B9664E3CE361E212FE8DA4C35B3EFA54" box="[300,306,1408,1432]" italics="true" pageId="41" pageNumber="1573">’</emphasis>
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Orbigny,
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<date id="FFACB4EEE361E212FE0BA4C35BEAFA54" box="[426,486,1408,1432]" pageId="41" pageNumber="1573" value="1843-01">1843,</date>
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are usually medium to large sized, smooth shelled, and often have a subsutural excavation inside the aperture, characters not exhibited by
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<taxonomicName id="4C12E9ADE361E212FF01A4855B36FA12" authority="DeVries, 2019" authorityName="DeVries" authorityYear="2019" box="[160,314,1478,1502]" class="Gastropoda" family="Fasciolariidae" genus="Tristeirostoma" higherTaxonomySource="GBIF" kingdom="Animalia" order="Neogastropoda" pageId="41" pageNumber="1573" phylum="Mollusca" rank="genus" status="gen. nov.">
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<emphasis id="B9664E3CE361E212FF01A4855B36FA12" box="[160,314,1478,1502]" italics="true" pageId="41" pageNumber="1573">Tristeirostoma</emphasis>
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</taxonomicName>
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.
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</paragraph>
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</subSubSection>
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<subSubSection id="C308C1A5E361E212FF01A7515833F983" box="[160,575,1554,1615]" pageId="41" pageNumber="1573" type="etymology">
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<paragraph id="8BAD922EE361E212FF01A7515B11F9E0" blockId="41.[160,575,1554,1615]" box="[160,285,1554,1580]" pageId="41" pageNumber="1573">
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<emphasis id="B9664E3CE361E212FF01A7515B11F9E0" bold="true" box="[160,285,1554,1580]" italics="true" pageId="41" pageNumber="1573">Etymology</emphasis>
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</paragraph>
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<paragraph id="8BAD922EE361E212FF01A7745833F983" blockId="41.[160,575,1554,1615]" box="[160,575,1590,1615]" pageId="41" pageNumber="1573">
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Greek, meaning
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<emphasis id="B9664E3CE361E212FEFDA7755B6DF982" box="[348,353,1590,1614]" italics="true" pageId="41" pageNumber="1573">‘</emphasis>
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tri-keeled aperture
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<emphasis id="B9664E3CE361E212FD92A7755834F982" box="[563,568,1590,1614]" italics="true" pageId="41" pageNumber="1573">’</emphasis>
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.
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</paragraph>
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</subSubSection>
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<subSubSection id="C308C1A5E361E212FF01A7C05E88F973" box="[160,1156,1667,1727]" pageId="41" pageNumber="1573" type="distribution">
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<paragraph id="8BAD922EE361E212FF01A7C05B28F951" blockId="41.[160,1156,1667,1727]" box="[160,292,1667,1693]" pageId="41" pageNumber="1573">
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<emphasis id="B9664E3CE361E212FF01A7C05B28F951" bold="true" box="[160,292,1667,1693]" italics="true" pageId="41" pageNumber="1573">Occurrence</emphasis>
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</paragraph>
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<paragraph id="8BAD922EE361E212FF01A7E45E88F973" blockId="41.[160,1156,1667,1727]" box="[160,1156,1703,1727]" pageId="41" pageNumber="1573">
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Lower Paleogene, Cuenca Member, Caballas Formation, East Pisco Basin, southern
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<collectingCountry id="F305D2BEE361E212FBEAA7E45E8DF973" box="[1099,1153,1703,1727]" name="Peru" pageId="41" pageNumber="1573">Peru</collectingCountry>
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.
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</paragraph>
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</subSubSection>
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</treatment>
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||
</document> |