120 lines
13 KiB
XML
120 lines
13 KiB
XML
<document id="7709D95D6BE94BE3A73933CD079CC9FA" ID-DOI="10.11646/zootaxa.3076.1.1" ID-ISSN="11755334" ID-Zenodo-Dep="5243500" IM.materialsCitations_approvedBy="felipe" IM.metadata_approvedBy="felipe" IM.tables_requiresApprovalFor="existingObjects,plazi" IM.taxonomicNames_approvedBy="felipe" checkinTime="1629749671195" checkinUser="felipe" docAuthor="Hansen, Jesper & Holmer, Lars E." docDate="2011" docId="A87D878BFFB1FFB30BA8FA7DFD6CFDA4" docLanguage="en" docName="zt03076p122.pdf" docOrigin="Zootaxa 3076 (1)" docSource="https://biotaxa.org/Zootaxa/article/view/zootaxa.3076.1.1" docStyle="DocumentStyle:D239614CE4198176A422035174489AB1.4:Zootaxa.2009-2012.monograph" docStyleId="D239614CE4198176A422035174489AB1" docStyleName="Zootaxa.2009-2012.monograph" docStyleVersion="4" docTitle="Numericoma Popov 1980" docType="treatment" docVersion="3" lastPageNumber="73" masterDocId="5444FFF3FFF6FFFB0B3FFFF1F866FF98" masterDocTitle="Taxonomy and biostratigraphy of Ordovician brachiopods from northeastern Ny Friesland, Spitsbergen 3076" masterLastPageNumber="122" masterPageNumber="1" pageNumber="72" updateTime="1699105918309" updateUser="plazi" zenodo-license-document="CLOSED">
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<mods:title id="8C68162726F6DAB126B2A941072318E9">Taxonomy and biostratigraphy of Ordovician brachiopods from northeastern Ny Friesland, Spitsbergen 3076</mods:title>
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<mods:namePart id="EBC7B4671484347FAAC3933587351B8D">Hansen, Jesper</mods:namePart>
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<mods:namePart id="C1DB4AA26998A1A56E9EA9B8A972FB21">Holmer, Lars E.</mods:namePart>
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<mods:typeOfResource id="2DD860E57AAE5C6E0D8E7F73D6E826EA">text</mods:typeOfResource>
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<mods:title id="4B48CE97DD379ECFDF31F8EEC2FAFC58">Zootaxa</mods:title>
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<mods:part id="34C7DB2651A84C3B5F76FFF9DB8F67FD">
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<mods:date id="10E63ADB1300C233F2DAA471C5AA4E07">2011</mods:date>
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<mods:number id="136C96F16B3A2D6CC5EE93921011FD7A">2011-10-28</mods:number>
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<mods:number id="BCFEE5DB3721128615DBCEC4D910E301">3076</mods:number>
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<mods:url id="E402416FD6FDA7D0C0346FD36E56E623">https://biotaxa.org/Zootaxa/article/view/zootaxa.3076.1.1</mods:url>
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<mods:classification id="ABAD6E3BDC7709277D8332435CDE11A7">journal article</mods:classification>
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<mods:identifier id="775B605552D802ADB0693ED6DB66B5D6" type="DOI">10.11646/zootaxa.3076.1.1</mods:identifier>
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<mods:identifier id="ED6EC21DAAEDA594E569C164B13A9EA4" type="ISSN">11755334</mods:identifier>
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<treatment id="A87D878BFFB1FFB30BA8FA7DFD6CFDA4" LSID="urn:lsid:plazi:treatment:A87D878BFFB1FFB30BA8FA7DFD6CFDA4" httpUri="http://treatment.plazi.org/id/A87D878BFFB1FFB30BA8FA7DFD6CFDA4" lastPageId="72" lastPageNumber="73" pageId="71" pageNumber="72">
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<subSubSection id="68CE6516FFB1FFBC0BA8FA7DFAC8FA5F" pageId="71" pageNumber="72" type="nomenclature">
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<paragraph id="206B369DFFB1FFBC0BA8FA7DF99AFA3E" blockId="71.[151,686,1420,1479]" box="[151,508,1420,1446]" pageId="71" pageNumber="72">
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<heading id="7B2381F1FFB1FFBC0BA8FA7DF99AFA3E" bold="true" box="[151,508,1420,1446]" fontSize="11" level="1" pageId="71" pageNumber="72" reason="1">
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<emphasis id="12A0EA8FFFB1FFBC0BA8FA7DF99AFA3E" bold="true" box="[151,508,1420,1446]" pageId="71" pageNumber="72">
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<taxonomicName id="E7D44D1EFFB1FFBC0BA8FA7DF953FA3E" authorityName="Popov" authorityYear="1980" box="[151,309,1420,1446]" class="Lingulata" family="Ephippelasmatidae" genus="Numericoma" higherTaxonomySource="GBIF" kingdom="Animalia" order="Acrotretida" pageId="71" pageNumber="72" phylum="Brachiopoda" rank="genus">
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<emphasis id="12A0EA8FFFB1FFBC0BA8FA7DF953FA3E" bold="true" box="[151,309,1420,1446]" italics="true" pageId="71" pageNumber="72">Numericoma</emphasis>
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</taxonomicName>
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?
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<emphasis id="12A0EA8FFFB1FFBC0A74FA7DF9D6FA3E" bold="true" box="[331,432,1420,1446]" italics="true" pageId="71" pageNumber="72">proclina</emphasis>
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var. 1
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</emphasis>
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</heading>
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</paragraph>
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<paragraph id="206B369DFFB1FFBC0BA8FA5EFAC8FA5F" blockId="71.[151,686,1420,1479]" box="[151,686,1455,1479]" pageId="71" pageNumber="72">
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Pl. 19, Fig. 15; Pl. 20,
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<figureCitation id="B8EF2A18FFB1FFBC0AABFA5EF9BAFA5F" box="[404,476,1455,1479]" captionStart="FIGURE 1" captionStartId="6.[151,244,1307,1328]" captionTargetBox="[152,1436,331,1294]" captionTargetId="figure-359@6.[151,1436,331,1295]" captionTargetPageId="6" captionText="FIGURE 1 Locality maps of the Svalbard Archipelago. a) Locations of sites yielding Lower Palaeozoic fossils mentioned in this paper. b) Geological map of the Basissletta plain, northeastern Ny Friesland; redrawn from Fortey & Bruton (1973). The base map is based on aerial photos made available by the Norwegian Polar Institute and on field observations made by the authors in 2008." figureDoi="http://doi.org/10.5281/zenodo.5243502" httpUri="https://zenodo.org/record/5243502/files/figure.png" pageId="71" pageNumber="72">Figs. 1</figureCitation>
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–10;
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<tableCitation id="6D560326FFB1FFBC0926FA5EFAC8FA5F" box="[537,686,1455,1479]" captionStart-0="TABLE 24" captionStart-1="TABLE 25" captionStartId-0="72.[151,232,661,682]" captionStartId-1="72.[151,232,1266,1287]" captionText-0="TABLE 24. Shell measurements of Numericoma? proclina var. 1." captionText-1="TABLE 25. Shell measurements of dorsal valve of Numericoma? proclina var. 1." pageId="71" pageNumber="72">Tables 24–25</tableCitation>
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</paragraph>
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</subSubSection>
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<subSubSection id="68CE6516FFB1FFBC0BA8FA07FB7DF9AB" pageId="71" pageNumber="72" type="materials_examined">
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<paragraph id="206B369DFFB1FFBC0BA8FA07FB7DF9AB" blockId="71.[151,1437,1526,2020]" pageId="71" pageNumber="72">
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<emphasis id="12A0EA8FFFB1FFBC0BA8FA07F960F997" bold="true" box="[151,262,1526,1551]" inLineHeading="true" pageId="71" pageNumber="72" reason="1">Material.</emphasis>
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40 dorsal and 4 ventral valves from samples F3366, F4997, F5032, JH-23, JH-95 and JH-184. The figured specimens are
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<collectionCode id="46C5AE58FFB1FFBC0A4AF9EAF9DAF9AB" box="[373,444,1563,1587]" pageId="71" pageNumber="72">TSGF</collectionCode>
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16939–16941 and
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<collectionCode id="46C5AE58FFB1FFBC09B6F9EAFAB6F9AB" box="[649,720,1563,1587]" pageId="71" pageNumber="72">TSGF</collectionCode>
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17040.
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</paragraph>
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</subSubSection>
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<subSubSection id="68CE6516FFB1FFB30BF8F9CFFADDFE84" lastPageId="72" lastPageNumber="73" pageId="71" pageNumber="72" type="description">
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<paragraph id="206B369DFFB1FFBC0BF8F9CFF95DF97F" blockId="71.[151,1437,1526,2020]" pageId="71" pageNumber="72">
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<emphasis id="12A0EA8FFFB1FFBC0BF8F9CFF93EF9CF" bold="true" box="[199,344,1598,1623]" inLineHeading="true" pageId="71" pageNumber="72" reason="1">Description.</emphasis>
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Shell transversely oval with nearly straight or gently convex posterior margin. Shell widest at about mid-valve length. L/W ratio 0.69–0.95. Largest measured specimen
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<quantity id="E72C9B78FFB1FFBC08DBF992FC5CF9E3" box="[996,1082,1635,1659]" metricMagnitude="-3" metricUnit="m" metricValue="1.3" pageId="71" pageNumber="72" unit="mm" value="1.3">1.3 mm</quantity>
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long and
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<quantity id="E72C9B78FFB1FFBC0F91F992FD62F9E3" box="[1198,1284,1635,1659]" metricMagnitude="-3" metricUnit="m" metricValue="1.3" pageId="71" pageNumber="72" unit="mm" value="1.3">1.3 mm</quantity>
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wide. Larval shell subcircular,
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<quantity id="E72C9B78FFB1FFBC0A5CF976FA6EF907" box="[355,520,1671,1695]" metricMagnitude="-4" metricUnit="m" metricValue="1.75" metricValueMax="2.0" metricValueMin="1.5" pageId="71" pageNumber="72" unit="mm" value="0.175" valueMax="0.2" valueMin="0.15">0.15–0.20 mm</quantity>
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long, with dense micro-pitting. Pits deep and circular, variable in size, mostly about 2 µm in diameter. Postlarval ornamentation consisting of coarse growth lines developing into thin concentric ridges distally.
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</paragraph>
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<paragraph id="206B369DFFB1FFBC0BF8F902FCF5F87B" blockId="71.[151,1437,1526,2020]" pageId="71" pageNumber="72">
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Dorsal valve slightly concave to slightly convex, with weak or absent sulcus. Pseudointerarea strongly anacline, concave or planar, 33–60% as wide as valve. Median groove rather shallow to moderately deep, 17–40% as wide and 5–12% as long as valve, with weakly concave or planar anterior margin. Median buttress weak. Median septum moderately high and thin, triangular, beginning at
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<quantity id="E72C9B78FFB1FFBC080CF8AEFBDDF8EF" box="[819,955,1887,1911]" metricMagnitude="-4" metricUnit="m" metricValue="1.5" metricValueMax="2.0" metricValueMin="1.0" pageId="71" pageNumber="72" unit="mm" value="0.15" valueMax="0.2" valueMin="0.1">0.1–0.2 mm</quantity>
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of valve length, with apex located at 53– 83% and front located at 72–86% of valve length. Median septum with septal rod and asymmetrically folded upper part. Two to four spines along anterior edge of septum. Cardinal muscle scars moderately large, subtriangular, poorly impressed. Anterocentral muscle scars obscure. Mantle canal system not impressed.
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</paragraph>
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<paragraph id="206B369DFFBEFFB30BF8FF66FADDFE84" blockId="72.[151,1436,151,572]" pageId="72" pageNumber="73">Ventral valve low to moderately conical with gently convex lateral and anterior slopes and rounded apex. One specimen about 40% as high as long. Pseudointerarea procline or catacline with weak intertrough or interridge. Foramen moderately large, circular, located within posterior part of larval shell. Foramen generally not extended as a short tube. Apical process forming a low ridge.</paragraph>
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</subSubSection>
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<subSubSection id="68CE6516FFBEFFB30BF8FED9FD6CFDA4" pageId="72" pageNumber="73" type="discussion">
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<paragraph id="206B369DFFBEFFB30BF8FED9FC4BFE6B" blockId="72.[151,1436,151,572]" pageId="72" pageNumber="73">
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<emphasis id="12A0EA8FFFBEFFB30BF8FED9F95DFED8" bold="true" box="[199,315,296,320]" inLineHeading="true" pageId="72" pageNumber="73" reason="1">Remarks.</emphasis>
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This
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<taxonomicName id="E7D44D1EFFBEFFB30ABEFED6FA44FEA7" box="[385,546,295,319]" pageId="72" pageNumber="73" rank="variety" variety="differs">variety differs</taxonomicName>
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from the typical form in its higher mean L/W ratio, relatively lower ventral valves, absent or weak sulcus, very short median groove, and generally shorter median septum with fewer spines. Because very few specimens (all of which are damaged) are available from the lower part of its distribution, it is not possible at present to test whether there is a continuous evolutionary development from the typical form to this form. Therefore, it is possible that the specimens assigned to this
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<taxonomicName id="E7D44D1EFFBEFFB308BEFE46FC22FE57" box="[897,1092,439,463]" pageId="72" pageNumber="73" rank="variety" variety="constitute">variety constitute</taxonomicName>
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a new species. However, they probably represent an evolutionary/ecological change within
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<emphasis id="12A0EA8FFFBEFFB3087BFE2CFB31FE6C" box="[836,855,477,500]" italics="true" pageId="72" pageNumber="73">N</emphasis>
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.?
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<emphasis id="12A0EA8FFFBEFFB3084DFE2DFBB6FE6C" box="[882,976,476,500]" italics="true" pageId="72" pageNumber="73">proclina</emphasis>
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sp. nov.
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</paragraph>
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<paragraph id="206B369DFFBEFFB30BF8FE0EFD6CFDA4" blockId="72.[151,1436,151,572]" pageId="72" pageNumber="73">
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<emphasis id="12A0EA8FFFBEFFB30BF8FE0EF93FFD80" bold="true" box="[199,345,511,536]" inLineHeading="true" pageId="72" pageNumber="73" reason="1">Occurrence.</emphasis>
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110, 125 and
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<quantity id="E72C9B78FFBEFFB30AC4FE0EFA25FD8F" box="[507,579,511,535]" metricMagnitude="2" metricUnit="m" metricValue="1.4" pageId="72" pageNumber="73" unit="m" value="140.0">140 m</quantity>
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above base of Olenidsletta Member and 21, 26, 52 and
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<quantity id="E72C9B78FFBEFFB30F80FE0EFC9EFD8F" box="[1215,1272,511,535]" metricMagnitude="1" metricUnit="m" metricValue="5.4" pageId="72" pageNumber="73" unit="m" value="54.0">54 m</quantity>
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above base of Profilbekken Member, Valhallfonna Formation, Basissletta in northeastern Ny Friesland, Spitsbergen.
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</paragraph>
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</subSubSection>
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</treatment>
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</document> |