234 lines
27 KiB
XML
234 lines
27 KiB
XML
<document id="33D76A4C3BF5268FD30041EA3919F66C" ID-DOI="10.5281/zenodo.197721" ID-GBIF-Dataset="7fbbbf17-731f-4905-a25b-cea2c544bf38" ID-ISSN="1175-5326" ID-Zenodo-Dep="197721" IM.materialsCitations_approvedBy="felipe" IM.metadata_approvedBy="felipe" IM.tables_requiresApprovalFor="existingObjects,plazi" IM.taxonomicNames_approvedBy="felipe" checkinTime="1460276041053" checkinUser="plazi" docAuthor="Symonds, Malcolm Francis & Pacaud, Jean-Michel" docDate="2010" docId="03CFAD7AC0561F6BFF1AFB244CE6FDFE" docLanguage="en" docName="zt02606p068.pdf" docOrigin="Zootaxa 2606" docStyle="DocumentStyle:890A69B780ED73D6DB8551B71C8AC79E.4:Zootaxa.2009-2012.journal_article" docStyleId="890A69B780ED73D6DB8551B71C8AC79E" docStyleName="Zootaxa.2009-2012.journal_article" docStyleVersion="4" docTitle="Tomostoma angusta Symonds & Pacaud, 2010, sp. nov." docType="treatment" docVersion="8" lastPageNumber="58" masterDocId="FFF6D502C0571F68FF8DFFA34871FFB2" masterDocTitle="New species of Neritidae (Neritimorpha) from the Ypresian and Bartonian of the Paris and Basse-Loire Basins, France" masterLastPageNumber="68" masterPageNumber="55" pageNumber="56" updateTime="1698248446951" updateUser="plazi">
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<mods:mods id="761217D0C5E716E40E1A98FAD0DA0994" xmlns:mods="http://www.loc.gov/mods/v3">
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<mods:titleInfo id="B7C7C117BA8B3F171A252875DFD0B6E6">
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<mods:title id="38194AB451C16B372AC51A3AED01B3A6">New species of Neritidae (Neritimorpha) from the Ypresian and Bartonian of the Paris and Basse-Loire Basins, France</mods:title>
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</mods:titleInfo>
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<mods:name id="DC901912EC722B2567A9E505FA0B4FBE" type="personal">
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<mods:role id="F052734D6580A75B48AF2BA7436B3A71">
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<mods:roleTerm id="0A553BD2B3FB5614169D2F55CCC5D120">Author</mods:roleTerm>
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</mods:role>
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<mods:namePart id="2B146C5BB1C435DCD0B0499F54E6C93C">Symonds, Malcolm Francis</mods:namePart>
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</mods:name>
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<mods:name id="DBA7230A55112C8AC467071F3C90648F" type="personal">
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<mods:role id="B96136CE4E762C179A5FE7F982574565">
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<mods:roleTerm id="62393942C858C8F8781B7FAE351D6667">Author</mods:roleTerm>
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</mods:role>
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<mods:namePart id="27AC84BFF800FFC81C12A9F2A5F3B00D">Pacaud, Jean-Michel</mods:namePart>
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</mods:name>
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<mods:typeOfResource id="46EB75504BB302808660CE6D316D2404">text</mods:typeOfResource>
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<mods:titleInfo id="422C899975503F3E7EEC658379B8AF8D">
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<mods:title id="81770F03B59C4715E507280A79D74F85">Zootaxa</mods:title>
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</mods:titleInfo>
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<mods:part id="A9A8A0114E1CAAF5B095236AEC0E7A5D">
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<mods:date id="836073CDCD2F48B7EBAA7E644AFB4ED1">2010</mods:date>
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<mods:detail id="10555C0538ADB31D10F4E09564A1A71D" type="volume">
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<mods:number id="E165AED287AE043ABB9AEA53B9E481F5">2606</mods:number>
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<mods:start id="8D662DD6E375150D6F79AD53E8DC2577">55</mods:start>
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<mods:end id="C1E1AB44F67EAD6844ED081A87D7E15D">68</mods:end>
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<mods:classification id="0A9ADD3058A3C028E03FB8C24D1E2ACF">journal article</mods:classification>
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<mods:identifier id="89DDF88DBFDE3F25A06397F4AC472C35" type="DOI">10.5281/zenodo.197721</mods:identifier>
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<mods:identifier id="221A4A9B66F78AD7A3C19F75777ED318" type="GBIF-Dataset">7fbbbf17-731f-4905-a25b-cea2c544bf38</mods:identifier>
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<mods:identifier id="5B9C5B34BC441A6D129C2F6CC91B8D4E" type="ISSN">1175-5326</mods:identifier>
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<mods:identifier id="144766519EAB6371015045C4934295E9" type="Zenodo-Dep">197721</mods:identifier>
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</mods:mods>
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<treatment id="03CFAD7AC0561F6BFF1AFB244CE6FDFE" ID-DOI="http://doi.org/10.5281/zenodo.6209651" ID-GBIF-Taxon="119396033" ID-Zenodo-Dep="6209651" LSID="urn:lsid:plazi:treatment:03CFAD7AC0561F6BFF1AFB244CE6FDFE" httpUri="http://treatment.plazi.org/id/03CFAD7AC0561F6BFF1AFB244CE6FDFE" lastPageId="3" lastPageNumber="58" pageId="1" pageNumber="56">
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<subSubSection id="C37C4FE7C0561F69FF1AFB244968FB76" pageId="1" pageNumber="56" type="nomenclature">
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<paragraph id="8BD91C6CC0561F69FF1AFB24499FFB13" blockId="1.[151,494,1159,1220]" box="[151,494,1159,1185]" pageId="1" pageNumber="56">
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<heading id="D091AB00C0561F69FF1AFB24499FFB13" bold="true" box="[151,494,1159,1185]" fontSize="11" level="1" pageId="1" pageNumber="56" reason="1">
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<emphasis id="B912C07EC0561F69FF1AFB24499FFB13" bold="true" box="[151,494,1159,1185]" pageId="1" pageNumber="56">
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<taxonomicName id="4C6667EFC0561F69FF1AFB2449F8FB13" box="[151,393,1159,1185]" class="Gastropoda" family="Neritidae" genus="Tomostoma" higherTaxonomySource="CoL" kingdom="Animalia" order="Archaeogastropoda" pageId="1" pageNumber="56" phylum="Mollusca" rank="species" species="angusta" status="sp. nov.">
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<emphasis id="B912C07EC0561F69FF1AFB2449F8FB13" bold="true" box="[151,393,1159,1185]" italics="true" pageId="1" pageNumber="56">Tomostoma angusta</emphasis>
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</taxonomicName>
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<taxonomicNameLabel id="A2217D05C0561F69FE1DFB24499FFB13" box="[400,494,1159,1185]" pageId="1" pageNumber="56" 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 id="8BD91C6CC0561F69FF1AFB094968FB76" blockId="1.[151,494,1159,1220]" box="[151,281,1194,1220]" pageId="1" pageNumber="56">
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(
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<figureCitation id="135D00E9C0561F69FF12FB094891FB76" box="[159,224,1194,1220]" captionStart="FIGURES 1 – 4. 1" captionStartId="2.[151,270,1816,1840]" captionTargetBox="[192,1394,181,1799]" captionTargetId="figure@2.[192,1394,169,1800]" captionTargetPageId="2" captionText="FIGURES 1 – 4. 1. Tomostoma angusta sp. nov., holotype, a. apertural, b. abapertural, c-d. side views. Length 5.2 mm, width 2.8 mm. Bartonian, Le Quoniam, Haravilliers, Val d’Oise, France. MNHN A 31487 (J-M Pacaud leg.). 2. Nerita gouetensis sp. nov., holotype, a. apertural, b. abapertural, c. apical views. Height 4 mm, width 4 mm. Bartonian, Bois- Gouët, Saffré, Loire-Atlantique, France. MNHN A 31489 (J-M Pacaud leg.). 3. Clithon barbei sp. nov., holotype, a. apertural, b. abapertural, c. apical views. Height 3.2 mm, width 3.2 mm. Ypresian, Pourcy, Marne, France. NHM PI TG 26448 (M. F. Symonds coll.). 4. Neritodryas guillioui sp. nov., holotype, a. apertural, b. abapertural, c. apical views. Height 15 mm, width 16 mm. Ypresian, Pourcy, Marne, France. MNHN A 31490 (Faullummel coll.)." httpUri="https://zenodo.org/record/197722/files/figure.png" pageId="1" pageNumber="56">Fig. 1</figureCitation>
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a–d)
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</paragraph>
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</subSubSection>
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<subSubSection id="C37C4FE7C0561F69FF1AFB564C9FFACD" pageId="1" pageNumber="56" type="materials_examined">
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<paragraph id="8BD91C6CC0561F69FF1AFB564B60FA86" blockId="1.[151,1437,1269,2004]" pageId="1" pageNumber="56">
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<emphasis id="B912C07EC0561F69FF1AFB564922FABD" bold="true" box="[151,339,1269,1295]" pageId="1" pageNumber="56">
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<typeStatus id="54DDA2CEC0561F69FF1AFB5648A7FABD" box="[151,214,1269,1295]" pageId="1" pageNumber="56">Type</typeStatus>
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material.
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</emphasis>
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<typeStatus id="54DDA2CEC0561F69FED1FB5649BCFABD" box="[348,461,1269,1295]" pageId="1" pageNumber="56" type="holotype">Holotype</typeStatus>
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<collectionCode id="ED7784A9C0561F69FE58FB564A41FABD" LSID="urn:lsid:biocol.org:col:34988" box="[469,560,1269,1295]" httpUri="http://biocol.org/urn:lsid:biocol.org:col:34988" name="Museum National d'Histoire Naturelle" pageId="1" pageNumber="56">MNHN</collectionCode>
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A31487 (Pacaud leg.,
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<figureCitation id="135D00E9C0561F69FCC7FB564BFFFABD" box="[842,910,1269,1295]" captionStart="FIGURES 1 – 4. 1" captionStartId="2.[151,270,1816,1840]" captionTargetBox="[192,1394,181,1799]" captionTargetId="figure@2.[192,1394,169,1800]" captionTargetPageId="2" captionText="FIGURES 1 – 4. 1. Tomostoma angusta sp. nov., holotype, a. apertural, b. abapertural, c-d. side views. Length 5.2 mm, width 2.8 mm. Bartonian, Le Quoniam, Haravilliers, Val d’Oise, France. MNHN A 31487 (J-M Pacaud leg.). 2. Nerita gouetensis sp. nov., holotype, a. apertural, b. abapertural, c. apical views. Height 4 mm, width 4 mm. Bartonian, Bois- Gouët, Saffré, Loire-Atlantique, France. MNHN A 31489 (J-M Pacaud leg.). 3. Clithon barbei sp. nov., holotype, a. apertural, b. abapertural, c. apical views. Height 3.2 mm, width 3.2 mm. Ypresian, Pourcy, Marne, France. NHM PI TG 26448 (M. F. Symonds coll.). 4. Neritodryas guillioui sp. nov., holotype, a. apertural, b. abapertural, c. apical views. Height 15 mm, width 16 mm. Ypresian, Pourcy, Marne, France. MNHN A 31490 (Faullummel coll.)." httpUri="https://zenodo.org/record/197722/files/figure.png" pageId="1" pageNumber="56">Fig. 1</figureCitation>
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a–d); 6
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<typeStatus id="54DDA2CEC0561F69FC7DFB564C15FABD" box="[1008,1124,1269,1295]" pageId="1" pageNumber="56" type="paratype">paratypes</typeStatus>
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<collectionCode id="ED7784A9C0561F69FBE0FB564CB9FABD" LSID="urn:lsid:biocol.org:col:34988" box="[1133,1224,1269,1295]" httpUri="http://biocol.org/urn:lsid:biocol.org:col:34988" name="Museum National d'Histoire Naturelle" pageId="1" pageNumber="56">MNHN</collectionCode>
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A31488 (Pacaud leg.), 30
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<typeStatus id="54DDA2CEC0561F69FF72FAB9491EFA86" box="[255,367,1306,1332]" pageId="1" pageNumber="56" type="paratype">paratypes</typeStatus>
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(Pons coll.). All from
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<typeStatus id="54DDA2CEC0561F69FDF4FAB94ADDFA86" box="[633,684,1306,1332]" pageId="1" pageNumber="56">type</typeStatus>
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locality.
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</paragraph>
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<paragraph id="8BD91C6CC0561F69FF48FA9C4B01FAE8" blockId="1.[151,1437,1269,2004]" box="[197,880,1343,1370]" pageId="1" pageNumber="56">
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<emphasis id="B912C07EC0561F69FF48FA9C49D1FAEB" bold="true" box="[197,416,1343,1369]" pageId="1" pageNumber="56">Stratum typicum.</emphasis>
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Late Eocene, Bartonian, “Marinesian”.
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</paragraph>
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<paragraph id="8BD91C6CC0561F69FF48FAC64C9FFACD" blockId="1.[151,1437,1269,2004]" box="[197,1262,1381,1407]" pageId="1" pageNumber="56">
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<emphasis id="B912C07EC0561F69FF48FAC64909FACD" bold="true" box="[197,376,1381,1407]" pageId="1" pageNumber="56">Locus typicus.</emphasis>
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Le Quoniam, Haravilliers, Val d’Oise,
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<collectingCountry id="F3715CFCC0561F69FCC8FAC64BE9FACD" box="[837,920,1381,1407]" name="France" pageId="1" pageNumber="56">France</collectingCountry>
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. 49˚11ˏ2.68˝ N 2˚2ˏ17.53˝ E.
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</paragraph>
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</subSubSection>
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<subSubSection id="C37C4FE7C0561F69FF48FA294DFBFA16" box="[197,1418,1418,1444]" pageId="1" pageNumber="56" type="etymology">
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<paragraph id="8BD91C6CC0561F69FF48FA294DFBFA16" blockId="1.[151,1437,1269,2004]" box="[197,1418,1418,1444]" pageId="1" pageNumber="56">
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<emphasis id="B912C07EC0561F69FF48FA2949DDFA16" bold="true" box="[197,428,1418,1444]" pageId="1" pageNumber="56">Derivatio nominis.</emphasis>
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The name is derived from Latin
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<emphasis id="B912C07EC0561F69FCA3FA284BE7FA16" box="[814,918,1419,1444]" italics="true" pageId="1" pageNumber="56">angustus</emphasis>
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, referring to the narrow shape of the shell.
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</paragraph>
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</subSubSection>
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<subSubSection id="C37C4FE7C0561F69FF48FA0C4B3EFA5D" pageId="1" pageNumber="56" type="diagnosis">
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<paragraph id="8BD91C6CC0561F69FF48FA0C4B3EFA5D" blockId="1.[151,1437,1269,2004]" pageId="1" pageNumber="56">
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<emphasis id="B912C07EC0561F69FF48FA0C4937FA7B" bold="true" box="[197,326,1455,1481]" pageId="1" pageNumber="56">Diagnosis.</emphasis>
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A rather small, narrow
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<taxonomicName id="4C6667EFC0561F69FDE9FA134A99FA7B" box="[612,744,1456,1481]" class="Gastropoda" family="Neritidae" genus="Tomostoma" higherTaxonomySource="CoL" kingdom="Animalia" order="Archaeogastropoda" pageId="1" pageNumber="56" phylum="Mollusca" rank="genus">
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<emphasis id="B912C07EC0561F69FDE9FA134A99FA7B" box="[612,744,1456,1481]" italics="true" pageId="1" pageNumber="56">Tomostoma</emphasis>
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</taxonomicName>
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, capuliform, posterior and anterior margins of teleoconch ovate, not pointed, septum edge strongly concave in centre.
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</paragraph>
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</subSubSection>
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<subSubSection id="C37C4FE7C0561F6BFF48FA594B43FF00" lastPageId="3" lastPageNumber="58" pageId="1" pageNumber="56" type="description">
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<paragraph id="8BD91C6CC0561F69FF48FA594D53F866" blockId="1.[151,1437,1269,2004]" pageId="1" pageNumber="56">
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<emphasis id="B912C07EC0561F69FF48FA59492FF9A6" bold="true" box="[197,350,1530,1556]" pageId="1" pageNumber="56">Description.</emphasis>
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Protoconch, though rather worn in specimens available, prominent, approximately
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<quantity id="4C9EB189C0561F69FACCFA594DEDF9A6" box="[1345,1436,1530,1556]" metricMagnitude="-4" metricUnit="m" metricValue="2.0" pageId="1" pageNumber="56" unit="mm" value="0.2">0.2 mm</quantity>
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wide, smooth, obovate. Teleoconch capuliform, apex above posterior end in
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<typeStatus id="54DDA2CEC0561F69FB95F9834CF3F988" box="[1048,1154,1568,1594]" pageId="1" pageNumber="56" type="holotype">holotype</typeStatus>
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, slightly anterior to it in most
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<typeStatus id="54DDA2CEC0561F69FF54F9E6493EF9ED" box="[217,335,1605,1631]" pageId="1" pageNumber="56" type="paratype">paratypes</typeStatus>
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. Anterior and posterior margins ovate with posterior usually slightly narrower than anterior. Dorsal surface strongly convex, sloping steeply upwards to elevated posterior end, smooth apart from fine growth lines. No colour pattern visible on only known specimens. Aperture relatively large, semicircular. Inner lip protruded as broad septum covering more than half of base of shell, surface slightly concave, usually smooth but
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<typeStatus id="54DDA2CEC0561F69FEABF97949FEF946" box="[294,399,1754,1780]" pageId="1" pageNumber="56" type="holotype">holotype</typeStatus>
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has 3 faint grooves about
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<quantity id="4C9EB189C0561F69FD5CF9794B5CF946" box="[721,813,1754,1780]" metricMagnitude="-4" metricUnit="m" metricValue="2.0" pageId="1" pageNumber="56" unit="mm" value="0.2">0.2 mm</quantity>
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long perpendicular to septum edge coinciding with spaces between teeth on central part of septum. Septum edge strongly concave in centre with 1 to 5 small, prominent or indistinct teeth bordered on adapical side by larger tooth, which continues for short distance within aperture as low ridge on inner side of septum, followed by further concavity, short but quite deep. On abapical side of central concavity one broad, rather rounded tooth. Outer lip broad, smooth with very slight ridge running from one end of septum, in arc on inside of outer lip, to other end of septum. Small ridge below each end of septum, adapical larger, below septum edge, abapical narrower, lower, set further back.
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</paragraph>
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<caption id="DF194CE4C0551F6AFF1AF8BB4CB9F85D" httpUri="https://zenodo.org/record/197722/files/figure.png" pageId="2" pageNumber="57" targetBox="[192,1394,181,1799]" targetPageId="2">
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<paragraph id="8BD91C6CC0551F6AFF1AF8BB4CB9F85D" blockId="2.[151,1437,1816,2031]" pageId="2" pageNumber="57">
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<emphasis id="B912C07EC0551F6AFF1AF8BB4911F882" bold="true" box="[151,352,1816,1840]" pageId="2" pageNumber="57">FIGURES 1–4. 1.</emphasis>
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<taxonomicName id="4C6667EFC0551F6AFEEAF8BA4A4FF882" box="[359,574,1817,1840]" class="Gastropoda" family="Neritidae" genus="Tomostoma" higherTaxonomySource="CoL" kingdom="Animalia" order="Archaeogastropoda" pageId="2" pageNumber="57" phylum="Mollusca" rank="species" species="angusta" status="sp. nov.">
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<emphasis id="B912C07EC0551F6AFEEAF8BA4A4FF882" box="[359,574,1817,1840]" italics="true" pageId="2" pageNumber="57">Tomostoma angusta</emphasis>
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||
</taxonomicName>
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<emphasis id="B912C07EC0551F6AFDC8F8BB4AEDF882" bold="true" box="[581,668,1816,1840]" pageId="2" pageNumber="57">
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<taxonomicNameLabel id="A2217D05C0551F6AFDC8F8BB4AEDF882" box="[581,668,1816,1840]" pageId="2" pageNumber="57" rank="species">sp. nov.</taxonomicNameLabel>
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</emphasis>
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, holotype, a. apertural, b. abapertural, c-d. side views. Length 5.2 mm, width 2.8 mm. Bartonian, Le Quoniam, Haravilliers, Val d’Oise, France. MNHN A31487 (J-M Pacaud leg.).
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<emphasis id="B912C07EC0551F6AFAB6F89B4D3EF8E2" bold="true" box="[1339,1359,1848,1872]" pageId="2" pageNumber="57">2.</emphasis>
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<taxonomicName id="4C6667EFC0551F6AFADAF89A4978F8C2" class="Gastropoda" family="Neritidae" genus="Nerita" kingdom="Animalia" order="Cycloneritimorpha" pageId="2" pageNumber="57" phylum="Mollusca" rank="species" species="gouetensis" status="sp. nov.">
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<emphasis id="B912C07EC0551F6AFADAF89A4978F8C2" italics="true" pageId="2" pageNumber="57">Nerita gouetensis</emphasis>
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</taxonomicName>
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||
<emphasis id="B912C07EC0551F6AFE9DF8FB4916F8C2" bold="true" box="[272,359,1880,1904]" pageId="2" pageNumber="57">
|
||
<taxonomicNameLabel id="A2217D05C0551F6AFE9DF8FB4916F8C2" box="[272,359,1880,1904]" pageId="2" pageNumber="57" rank="species">sp. nov.</taxonomicNameLabel>
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||
</emphasis>
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, holotype, a. apertural, b. abapertural, c. apical views. Height 4 mm, width 4 mm. Bartonian, Bois- Gouët, Saffré, Loire-Atlantique, France. MNHN A31489 (J-M Pacaud leg.).
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<emphasis id="B912C07EC0551F6AFC61F8DB4C70F822" bold="true" box="[1004,1025,1912,1936]" pageId="2" pageNumber="57">3.</emphasis>
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<taxonomicName id="4C6667EFC0551F6AFB85F8DA4CDAF822" box="[1032,1195,1913,1936]" class="Gastropoda" family="Neritidae" genus="Clithon" kingdom="Animalia" order="Cycloneritimorpha" pageId="2" pageNumber="57" phylum="Mollusca" rank="species" species="barbei" status="sp. nov.">
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<emphasis id="B912C07EC0551F6AFB85F8DA4CDAF822" box="[1032,1195,1913,1936]" italics="true" pageId="2" pageNumber="57">Clithon barbei</emphasis>
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</taxonomicName>
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<emphasis id="B912C07EC0551F6AFB3FF8DB4D7AF822" bold="true" box="[1202,1291,1912,1936]" pageId="2" pageNumber="57">
|
||
<taxonomicNameLabel id="A2217D05C0551F6AFB3FF8DB4D7AF822" box="[1202,1291,1912,1936]" pageId="2" pageNumber="57" rank="species">sp. nov.</taxonomicNameLabel>
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</emphasis>
|
||
, holotype, a. apertural, b. abapertural, c. apical views. Height 3.2 mm, width 3.2 mm. Ypresian, Pourcy, Marne, France. NHM PI TG 26448 (M. F. Symonds coll.).
|
||
<emphasis id="B912C07EC0551F6AFE6FF81B4986F862" bold="true" box="[482,503,1976,2000]" pageId="2" pageNumber="57">4.</emphasis>
|
||
<taxonomicName id="4C6667EFC0551F6AFE73F81A4A97F862" box="[510,742,1977,2000]" class="Gastropoda" family="Neritidae" genus="Neritodryas" kingdom="Animalia" order="Cycloneritimorpha" pageId="2" pageNumber="57" phylum="Mollusca" rank="species" species="guillioui" status="sp. nov.">
|
||
<emphasis id="B912C07EC0551F6AFE73F81A4A97F862" box="[510,742,1977,2000]" italics="true" pageId="2" pageNumber="57">Neritodryas guillioui</emphasis>
|
||
</taxonomicName>
|
||
<emphasis id="B912C07EC0551F6AFD60F81B4B34F862" bold="true" box="[749,837,1976,2000]" pageId="2" pageNumber="57">
|
||
<taxonomicNameLabel id="A2217D05C0551F6AFD60F81B4B34F862" box="[749,837,1976,2000]" pageId="2" pageNumber="57" rank="species">sp. nov.</taxonomicNameLabel>
|
||
</emphasis>
|
||
, holotype, a. apertural, b. abapertural, c. apical views. Height 15 mm, width 16 mm. Ypresian, Pourcy, Marne, France. MNHN A31490 (Faullummel coll.).
|
||
</paragraph>
|
||
</caption>
|
||
<paragraph id="8BD91C6CC0541F6BFF48FF344B43FF00" blockId="3.[151,1437,151,588]" box="[197,818,151,178]" pageId="3" pageNumber="58">
|
||
<emphasis id="B912C07EC0541F6BFF48FF34488FFF03" bold="true" box="[197,254,151,177]" pageId="3" pageNumber="58">Size.</emphasis>
|
||
The
|
||
<typeStatus id="54DDA2CEC0541F6BFEB6FF3B49D0FF00" box="[315,417,152,178]" pageId="3" pageNumber="58" type="holotype">holotype</typeStatus>
|
||
is
|
||
<quantity id="4C9EB189C0541F6BFE4EFF3B4A6CFF00" box="[451,541,152,178]" metricMagnitude="-3" metricUnit="m" metricValue="5.2" pageId="3" pageNumber="58" unit="mm" value="5.2">5.2 mm</quantity>
|
||
long and
|
||
<quantity id="4C9EB189C0541F6BFD1CFF3B4A9AFF00" box="[657,747,152,178]" metricMagnitude="-3" metricUnit="m" metricValue="2.8" pageId="3" pageNumber="58" unit="mm" value="2.8">2.8 mm</quantity>
|
||
wide.
|
||
</paragraph>
|
||
</subSubSection>
|
||
<subSubSection id="C37C4FE7C0541F6BFF48FF1E4CE6FDFE" pageId="3" pageNumber="58" type="discussion">
|
||
<paragraph id="8BD91C6CC0541F6BFF48FF1E4971FD95" blockId="3.[151,1437,151,588]" pageId="3" pageNumber="58">
|
||
<emphasis id="B912C07EC0541F6BFF48FF1E494FFF65" bold="true" box="[197,318,189,215]" pageId="3" pageNumber="58">Remarks.</emphasis>
|
||
Three somewhat similar taxa occur in the Eocene of the Paris Basin and Cotentin:
|
||
<taxonomicName id="4C6667EFC0541F6BFA9BFF1E4AC9FF4E" authority="Defrance, 1818" authorityName="Defrance" authorityYear="1818" class="Gastropoda" family="Neritidae" genus="Tomostoma" higherTaxonomySource="CoL" kingdom="Animalia" order="Archaeogastropoda" pageId="3" pageNumber="58" phylum="Mollusca" rank="subSpecies" species="altavillensis" subSpecies="altavillensis">
|
||
<emphasis id="B912C07EC0541F6BFA9BFF1E49A5FF49" italics="true" pageId="3" pageNumber="58">Tomostoma altavillensis altavillensis</emphasis>
|
||
(
|
||
<bibRefCitation id="EFF7619DC0541F6BFE6BFF414ADEFF4E" author="Defrance" box="[486,687,226,252]" pageId="3" pageNumber="58" refString="Defrance, F. (1818) In: Levrault (Ed.), [Palaeontological Descriptions] Dictionnaire des Sciences Naturelles. Levrault, Strasbourg, 11, 615 pp." type="book" year="1818">Defrance, 1818</bibRefCitation>
|
||
)
|
||
</taxonomicName>
|
||
,
|
||
<taxonomicName id="4C6667EFC0541F6BFD4AFF414D16FF4E" authority="Deshayes, 1824" authorityName="Deshayes" authorityYear="1824" box="[711,1383,226,252]" class="Gastropoda" family="Neritidae" genus="Tomostoma" higherTaxonomySource="CoL" kingdom="Animalia" order="Archaeogastropoda" pageId="3" pageNumber="58" phylum="Mollusca" rank="subSpecies" species="altavillensis" subSpecies="neritoides">
|
||
<emphasis id="B912C07EC0541F6BFD4AFF414CF0FF49" box="[711,1153,226,251]" italics="true" pageId="3" pageNumber="58">Tomostoma altavillensis neritoides</emphasis>
|
||
(Deshayes, 1824)
|
||
</taxonomicName>
|
||
and
|
||
<taxonomicName id="4C6667EFC0541F6BFF1AFEAB4C3FFE90" authority="Cossmann, 1888 (Le Renard & Pacaud, 1995)" authorityName="Cossmann, 1888 (Le Renard & Pacaud" authorityYear="1995" box="[151,1102,264,290]" class="Gastropoda" family="Neritidae" genus="Tomostoma" higherTaxonomySource="CoL" kingdom="Animalia" order="Archaeogastropoda" pageId="3" pageNumber="58" phylum="Mollusca" rank="subSpecies" species="altavillensis" subSpecies="rostratum">
|
||
<emphasis id="B912C07EC0541F6BFF1AFEAB4A5AFE93" box="[151,555,264,289]" italics="true" pageId="3" pageNumber="58">Tomostoma altavillensis rostratum</emphasis>
|
||
<bibRefCitation id="EFF7619DC0541F6BFDBCFEAB4A84FE90" author="Cossmann" box="[561,757,264,290]" pageId="3" pageNumber="58" refString="Cossmann, M. (1888) Catalogue illustre des coquilles fossiles de l'Eocene des environs de Paris. Annales de la Societe de Belgique, 23, 3 - 328, pls 1 - 12." type="journal article" year="1888">Cossmann, 1888</bibRefCitation>
|
||
(
|
||
<bibRefCitation id="EFF7619DC0541F6BFC8EFEAB4C37FE90" author="Le" box="[771,1094,264,290]" pageId="3" pageNumber="58" refString="Le Renard, J. & Pacaud, J-M. (1995) Revision des mollusques Paleogenes du Bassin de Paris II - Liste des references primaires des especes. Cossmanniana, 3, 65 - 132." type="journal article" year="1995">Le Renard & Pacaud, 1995</bibRefCitation>
|
||
)
|
||
</taxonomicName>
|
||
. Of the three,
|
||
<taxonomicName id="4C6667EFC0541F6BFB7FFEAB497DFEF4" class="Gastropoda" family="Neritidae" genus="Tomostoma" higherTaxonomySource="CoL" kingdom="Animalia" order="Archaeogastropoda" pageId="3" pageNumber="58" phylum="Mollusca" rank="subSpecies" species="altavillensis" subSpecies="neritoides">
|
||
<emphasis id="B912C07EC0541F6BFB7FFEAB497DFEF4" italics="true" pageId="3" pageNumber="58">T. altavillensis neritoides</emphasis>
|
||
</taxonomicName>
|
||
is closest in appearance to
|
||
<taxonomicName id="4C6667EFC0541F6BFDC3FE8E4AB9FEF4" box="[590,712,301,326]" class="Gastropoda" family="Neritidae" genus="Tomostoma" higherTaxonomySource="CoL" kingdom="Animalia" order="Archaeogastropoda" pageId="3" pageNumber="58" phylum="Mollusca" rank="species" species="angusta">
|
||
<emphasis id="B912C07EC0541F6BFDC3FE8E4AB9FEF4" box="[590,712,301,326]" italics="true" pageId="3" pageNumber="58">T. angusta</emphasis>
|
||
</taxonomicName>
|
||
with its anterior and posterior margins oval, not pointed as in the other two taxa.
|
||
<taxonomicName id="4C6667EFC0541F6BFEF2FEF14A1DFED9" box="[383,620,338,363]" class="Gastropoda" family="Neritidae" genus="Tomostoma" higherTaxonomySource="CoL" kingdom="Animalia" order="Archaeogastropoda" pageId="3" pageNumber="58" phylum="Mollusca" rank="species" species="angusta">
|
||
<emphasis id="B912C07EC0541F6BFEF2FEF14A1DFED9" box="[383,620,338,363]" italics="true" pageId="3" pageNumber="58">Tomostoma angusta</emphasis>
|
||
</taxonomicName>
|
||
can be distinguished from
|
||
<taxonomicName id="4C6667EFC0541F6BFC3EFEF14C91FED9" box="[947,1248,338,363]" class="Gastropoda" family="Neritidae" genus="Tomostoma" higherTaxonomySource="CoL" kingdom="Animalia" order="Archaeogastropoda" pageId="3" pageNumber="58" phylum="Mollusca" rank="subSpecies" species="altavillensis" subSpecies="neritoides">
|
||
<emphasis id="B912C07EC0541F6BFC3EFEF14C91FED9" box="[947,1248,338,363]" italics="true" pageId="3" pageNumber="58">T. altavillensis neritoides</emphasis>
|
||
</taxonomicName>
|
||
by the concave centre to its septum edge, the smaller, more regular teeth in the centre and its narrower form. The average length to width ratio for
|
||
<taxonomicName id="4C6667EFC0541F6BFE47FE3E4A3BFE04" box="[458,586,413,438]" class="Gastropoda" family="Neritidae" genus="Tomostoma" higherTaxonomySource="CoL" kingdom="Animalia" order="Archaeogastropoda" pageId="3" pageNumber="58" phylum="Mollusca" rank="species" species="angusta">
|
||
<emphasis id="B912C07EC0541F6BFE47FE3E4A3BFE04" box="[458,586,413,438]" italics="true" pageId="3" pageNumber="58">T. angusta</emphasis>
|
||
</taxonomicName>
|
||
is 2.3:1 (from the
|
||
<specimenCount id="9D60D7E5C0541F6BFCB9FE3E4BAAFE05" box="[820,987,413,439]" pageId="3" pageNumber="58" type="generic">37 specimens</specimenCount>
|
||
in the Pacaud and Pons collections) compared with 1.6:1 for
|
||
<taxonomicName id="4C6667EFC0541F6BFE4AFE614A8DFE69" box="[455,764,450,475]" class="Gastropoda" family="Neritidae" genus="Tomostoma" higherTaxonomySource="CoL" kingdom="Animalia" order="Archaeogastropoda" pageId="3" pageNumber="58" phylum="Mollusca" rank="subSpecies" species="altavillensis" subSpecies="neritoides">
|
||
<emphasis id="B912C07EC0541F6BFE4AFE614A8DFE69" box="[455,764,450,475]" italics="true" pageId="3" pageNumber="58">T. altavillensis neritoides</emphasis>
|
||
</taxonomicName>
|
||
(from
|
||
<specimenCount id="9D60D7E5C0541F6BFCDCFE614B87FE6E" box="[849,1014,450,476]" pageId="3" pageNumber="58" type="generic">30 specimens</specimenCount>
|
||
from the Lutetian of Chaussy, Val d’Oise,
|
||
<collectingCountry id="F3715CFCC0541F6BFF75FE4B4921FDB0" box="[248,336,488,514]" name="France" pageId="3" pageNumber="58">France</collectingCountry>
|
||
). A t-test applied to the length to width ratio of these specimens results in a probability of <0.0001.
|
||
</paragraph>
|
||
<paragraph id="8BD91C6CC0541F6BFF48FD914CE6FDFE" blockId="3.[151,1437,151,588]" box="[197,1175,562,588]" pageId="3" pageNumber="58">
|
||
<emphasis id="B912C07EC0541F6BFF48FD91499FFDFE" bold="true" box="[197,494,562,588]" pageId="3" pageNumber="58">Range and distribution.</emphasis>
|
||
<taxonomicName id="4C6667EFC0541F6BFE78FD914A91FDF9" box="[501,736,562,587]" class="Gastropoda" family="Neritidae" genus="Tomostoma" higherTaxonomySource="CoL" kingdom="Animalia" order="Archaeogastropoda" pageId="3" pageNumber="58" phylum="Mollusca" rank="species" species="angusta">
|
||
<emphasis id="B912C07EC0541F6BFE78FD914A91FDF9" box="[501,736,562,587]" italics="true" pageId="3" pageNumber="58">Tomostoma angusta</emphasis>
|
||
</taxonomicName>
|
||
is known only from the
|
||
<typeStatus id="54DDA2CEC0541F6BFC72FD914C43FDFE" box="[1023,1074,562,588]" pageId="3" pageNumber="58">type</typeStatus>
|
||
locality.
|
||
</paragraph>
|
||
</subSubSection>
|
||
</treatment>
|
||
</document> |