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<document id="6070F49CC6A403DA1CDD571705F7BD08" ID-CLB-Dataset="105313" ID-DOI="10.5852/ejt.2022.831.1871" ID-GBIF-Dataset="e697ba5c-5a96-4a28-985c-748890333d6c" ID-ISSN="2118-9773" ID-Zenodo-Dep="6885198" ID-ZooBank="EAA2EAE2-DA8B-4516-B332-CB8423B8EEAA" IM.materialsCitations_approvedBy="felipe" IM.metadata_approvedBy="felipe" IM.tables_requiresApprovalFor="existingObjects,plazi" IM.taxonomicNames_approvedBy="felipe" checkinTime="1658507519427" checkinUser="felipe" docAuthor="Korn, Dieter &amp; Bockwinkel, Jürgen" docDate="2022" docId="9327592FF4091976FD961870FC285403" docLanguage="en" docName="ejt-831_67-108.pdf" docOrigin="European Journal of Taxonomy 831" docSource="http://dx.doi.org/10.5852/ejt.2022.831.1871" docStyle="DocumentStyle:EF2B578F1D15862ADE45B0C07C620911.14:EJT.2018-.journal_article.type1" docStyleId="EF2B578F1D15862ADE45B0C07C620911" docStyleName="EJT.2018-.journal_article.type1" docStyleVersion="14" docTitle="Maccoyoceras concavum Korn &amp; Bockwinkel 2022, sp. nov." docType="treatment" docUuid="CC00C3E7-5DF4-4FA9-844C-AAA60F1F5016" docUuidSource="ZooBank" docVersion="7" lastPageNumber="103" masterDocId="6F1E2157F42A1952FFE11E6BFF97516E" masterDocTitle="Early Carboniferous nautiloids from the Central Sahara, southern Algeria" masterLastPageNumber="108" masterPageNumber="67" pageNumber="102" updateTime="1699361693651" updateUser="ExternalLinkService" zenodo-license-document="CC-BY-4.0" zenodo-license-figures="CC-BY-4.0" zenodo-license-treatments="UNSPECIFIED">
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<mods:title id="77834C9DAB1DEF9FB71AC789D12898B3">Early Carboniferous nautiloids from the Central Sahara, southern Algeria</mods:title>
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<mods:namePart id="B1237EE9FE0168B331C870CFCF508D73">Korn, Dieter</mods:namePart>
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<mods:affiliation id="13AFD07BEAAEFD02384341BF71835E1B">Museum für Naturkunde, Leibniz Institut for Research on Evolution and Biodiversity, Invalidenstrasse 43, 10115 Berlin, Germany.</mods:affiliation>
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<mods:namePart id="3774EE6BD09D66FE15D970394F1504D1">Bockwinkel, Jürgen</mods:namePart>
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<mods:affiliation id="9F5880C8BA4324BE3340698BFFCC5B7D">Dechant-Fein-Strasse 22, 51375 Leverkusen, Germany.</mods:affiliation>
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<mods:title id="BA537AD86A36B493EFC278CADA6D165D">European Journal of Taxonomy</mods:title>
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<mods:date id="0CCF0B65FEA34BF1838828ECE7F51A9B">2022</mods:date>
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<mods:number id="F2D790819347C0E30ADB6EBCC0EBA950">2022-07-20</mods:number>
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<treatment id="9327592FF4091976FD961870FC285403" ID-DOI="http://doi.org/10.5281/zenodo.6902642" ID-GBIF-Taxon="197852076" ID-Zenodo-Dep="6902642" LSID="urn:lsid:zoobank.org:act:CC00C3E7-5DF4-4FA9-844C-AAA60F1F5016" httpUri="http://treatment.plazi.org/id/9327592FF4091976FD961870FC285403" lastPageId="36" lastPageNumber="103" pageId="35" pageNumber="102">
<subSubSection id="5394BBB2F4091971FD961870FB9E5758" box="[631,1033,1563,1590]" pageId="35" pageNumber="102" type="nomenclature">
<paragraph id="1B31E839F4091971FD961870FB9E5758" blockId="35.[401,1263,1563,1660]" box="[631,1033,1563,1590]" pageId="35" pageNumber="102">
<heading id="40795F55F4091971FD961870FB9E5758" box="[631,1033,1563,1590]" centered="true" fontSize="11" level="2" pageId="35" pageNumber="102" reason="2">
<taxonomicName id="DC8E93BAF4091971FD961870FC30575B" authority="Korn &amp; Bockwinkel, 2022" authorityName="Korn &amp; Bockwinkel" authorityYear="2022" box="[631,935,1563,1589]" class="Cephalopoda" family="Trigonoceratidae" genus="Maccoyoceras" higherTaxonomySource="GBIF" kingdom="Animalia" order="Nautilida" pageId="35" pageNumber="102" phylum="Mollusca" rank="species" species="concavum" status="sp. nov.">
<emphasis id="29FA342BF4091971FD961870FC30575B" bold="true" box="[631,935,1563,1589]" italics="true" pageId="35" pageNumber="102">Maccoyoceras concavum</emphasis>
</taxonomicName>
<taxonomicNameLabel id="32C98950F4091971FC4F1877FB9E5758" box="[942,1033,1564,1590]" pageId="35" pageNumber="102" rank="species">sp. nov.</taxonomicNameLabel>
</heading>
</paragraph>
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<subSubSection id="5394BBB2F4091971FE701855FC345712" pageId="35" pageNumber="102" type="description">
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urn:lsid:zoobank.org:act:
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</paragraph>
<paragraph id="1B31E839F4091971FD3D180AFC345712" blockId="35.[401,1263,1563,1660]" box="[732,931,1633,1660]" pageId="35" pageNumber="102">
<figureCitation id="83B5F4BCF4091971FD3D180AFCA55712" box="[732,818,1633,1660]" captionStart="Fig" captionStartId="36.[227,270,2001,2027]" captionTargetBox="[232,1431,1425,1963]" captionTargetId="figure-272@36.[227,1437,1421,1969]" captionTargetPageId="36" captionText="Fig. 29. Maccoyoceras concavum sp. nov., holotype MB.C.30486 (Wendt and Kaufmann 1995 Coll.) from Azzel Matti. Scale bar units=1 mm." figureDoi="http://doi.org/10.5281/zenodo.6902650" httpUri="https://zenodo.org/record/6902650/files/figure.png" pageId="35" pageNumber="102">Fig. 29</figureCitation>
,
<tableCitation id="560CDD82F4091971FCDC180AFC345712" box="[829,931,1633,1660]" captionStart="Table 17" captionStartId="36.[227,296,303,329]" captionTargetBox="[234,1419,375,448]" captionTargetPageId="36" captionText="Table 17. Conch dimensions (in mm) and ratios of Maccoyoceras concavum sp. nov." httpUri="http://table.plazi.org/id/4FF1B8B1F40E1976FF021F44FB5F5027" pageId="35" pageNumber="102" tableUuid="4FF1B8B1F40E1976FF021F44FB5F5027">Table 17</tableCitation>
</paragraph>
</subSubSection>
<subSubSection id="5394BBB2F4091971FF0218C8FCBC56F5" pageId="35" pageNumber="102" type="diagnosis">
<paragraph id="1B31E839F4091971FF0218C8FECB57D3" blockId="35.[227,348,1699,1725]" box="[227,348,1699,1725]" pageId="35" pageNumber="102">
<heading id="40795F55F4091971FF0218C8FECB57D3" bold="true" box="[227,348,1699,1725]" fontSize="11" level="3" pageId="35" pageNumber="102" reason="3">
<emphasis id="29FA342BF4091971FF0218C8FECB57D3" bold="true" box="[227,348,1699,1725]" pageId="35" pageNumber="102">Diagnosis</emphasis>
</heading>
</paragraph>
<paragraph id="1B31E839F4091971FF0218BAFCBC56F5" blockId="35.[225,1438,1745,1948]" pageId="35" pageNumber="102">
Species of
<taxonomicName id="DC8E93BAF4091971FE8D18B9FD805785" authorityName="Miller, Dunbar &amp; Condra" authorityYear="1933" box="[364,535,1746,1771]" class="Cephalopoda" family="Trigonoceratidae" genus="Maccoyoceras" higherTaxonomySource="GBIF" kingdom="Animalia" order="Nautilida" pageId="35" pageNumber="102" phylum="Mollusca" rank="genus">
<emphasis id="29FA342BF4091971FE8D18B9FD805785" box="[364,535,1746,1771]" italics="true" pageId="35" pageNumber="102">Maccoyoceras</emphasis>
</taxonomicName>
reaching about
<quantity id="DC7645DCF4091971FD0118B9FCD25782" box="[736,837,1746,1772]" metricMagnitude="-1" metricUnit="m" metricValue="1.0" pageId="35" pageNumber="102" unit="mm" value="100.0">100 mm</quantity>
conch diameter. Conch with weakly compressed whorl profile (ww/wh ~ 0.90); venter weakly concave, ventrolateral shoulder narrowly subangular. Whorls weakly embracing the preceding. Ornament in the juvenile stage with few coarse, granulated spiral lines on the flank, in the adult stage without spiral lines. Fine, sharp growth lines on the flank, with weakly biconvex course with a shallow lateral sinus and a moderately high ventrolateral projection. Venter with delicate growth lines with deep sinus.
</paragraph>
</subSubSection>
<subSubSection id="5394BBB2F4091971FF0219A8FC355962" box="[227,930,1987,2060]" pageId="35" pageNumber="102" type="etymology">
<paragraph id="1B31E839F4091971FF0219A8FEFD56B3" blockId="35.[227,362,1987,2013]" box="[227,362,1987,2013]" pageId="35" pageNumber="102">
<heading id="40795F55F4091971FF0219A8FEFD56B3" bold="true" box="[227,362,1987,2013]" fontSize="11" level="3" pageId="35" pageNumber="102" reason="3">
<emphasis id="29FA342BF4091971FF0219A8FEFD56B3" bold="true" box="[227,362,1987,2013]" pageId="35" pageNumber="102">Etymology</emphasis>
</heading>
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<paragraph id="1B31E839F4091971FF02199AFC355962" blockId="35.[227,930,2033,2060]" box="[227,930,2033,2060]" pageId="35" pageNumber="102">
After Latin ‘
<taxonomicName id="DC8E93BAF4091971FE961999FE795965" authorityName="Korn &amp; Bockwinkel" authorityYear="2022" box="[375,494,2034,2059]" class="Cephalopoda" family="Trigonoceratidae" genus="Maccoyoceras" higherTaxonomySource="GBIF" kingdom="Animalia" order="Nautilida" pageId="35" pageNumber="102" phylum="Mollusca" rank="species" species="concavum">
<emphasis id="29FA342BF4091971FE961999FE795965" box="[375,494,2034,2059]" italics="true" pageId="35" pageNumber="102">concavum</emphasis>
</taxonomicName>
’, referring to the shape of the venter.
</paragraph>
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<caption id="4FF1B8B1F40E1976FF021F44FB5F5027" ID-Table-UUID="4FF1B8B1F40E1976FF021F44FB5F5027" box="[227,1224,303,329]" httpUri="http://table.plazi.org/id/4FF1B8B1F40E1976FF021F44FB5F5027" pageId="36" pageNumber="103" startId="36.[227,296,303,329]" targetBox="[234,1419,375,448]" targetIsTable="true" targetPageId="36">
<paragraph id="1B31E839F40E1976FF021F44FB5F5027" blockId="36.[227,1224,303,329]" box="[227,1224,303,329]" pageId="36" pageNumber="103">
<emphasis id="29FA342BF40E1976FF021F44FEC35027" bold="true" box="[227,340,303,329]" pageId="36" pageNumber="103">Table 17.</emphasis>
Conch dimensions (in mm) and ratios of
<taxonomicName id="DC8E93BAF40E1976FCDD1F5BFBF15027" authority="Korn &amp; Bockwinkel, 2022" authorityName="Korn &amp; Bockwinkel" authorityYear="2022" box="[828,1126,304,329]" class="Cephalopoda" family="Trigonoceratidae" genus="Maccoyoceras" higherTaxonomySource="GBIF" kingdom="Animalia" order="Nautilida" pageId="36" pageNumber="103" phylum="Mollusca" rank="species" species="concavum" status="sp. nov.">
<emphasis id="29FA342BF40E1976FCDD1F5BFBF15027" box="[828,1126,304,329]" italics="true" pageId="36" pageNumber="103">Maccoyoceras concavum</emphasis>
</taxonomicName>
<taxonomicNameLabel id="32C98950F40E1976FB8C1F44FB5F5027" box="[1133,1224,303,329]" pageId="36" pageNumber="103" rank="species">sp. nov.</taxonomicNameLabel>
</paragraph>
</caption>
<paragraph id="1B31E839F40E1976FEFD1F1CFA1050AE" pageId="36" pageNumber="103">
<table id="698E1A99F40EE6ADFF0B1F1CFA1C50AE" box="[234,1419,375,448]" gridcols="11" gridrows="2" pageId="36" pageNumber="103">
<tr id="A5BEEA7BF40EE6ADFF0B1F1CFA1C50E1" box="[234,1419,375,399]" gridrow="0" pageId="36" pageNumber="103">
<th id="E66F8307F40EE6ADFF0B1F1CFE1D50E1" box="[234,394,375,399]" gridcol="0" gridrow="0" pageId="36" pageNumber="103">Specimen</th>
<td id="E66F8307F40EE6ADFE341F1CFD9350E1" box="[469,516,375,399]" gridcol="1" gridrow="0" pageId="36" pageNumber="103">dm</td>
<td id="E66F8307F40EE6ADFDCA1F1CFDCD50E1" box="[555,602,375,399]" gridcol="2" gridrow="0" pageId="36" pageNumber="103">ww</td>
<td id="E66F8307F40EE6ADFD641F1CFD2350E1" box="[645,692,375,399]" gridcol="3" gridrow="0" pageId="36" pageNumber="103">wh</td>
<td id="E66F8307F40EE6ADFD021F1CFC8550E1" box="[739,786,375,399]" gridcol="4" gridrow="0" pageId="36" pageNumber="103">uw</td>
<td id="E66F8307F40EE6ADFCDD1F1CFCFC50E1" box="[828,875,375,399]" gridcol="5" gridrow="0" pageId="36" pageNumber="103">ah</td>
<td id="E66F8307F40EE6ADFC711F1CFC7550E1" box="[912,994,375,399]" gridcol="6" gridrow="0" pageId="36" pageNumber="103">ww/dm</td>
<td id="E66F8307F40EE6ADFBE91F1CFBC050E1" box="[1032,1111,375,399]" gridcol="7" gridrow="0" pageId="36" pageNumber="103">ww/wh</td>
<td id="E66F8307F40EE6ADFB9C1F1CFB5C50E1" box="[1149,1227,375,399]" gridcol="8" gridrow="0" pageId="36" pageNumber="103">uw/dm</td>
<td id="E66F8307F40EE6ADFB111F1CFAA750E1" box="[1264,1328,375,399]" gridcol="9" gridrow="0" pageId="36" pageNumber="103">WER</td>
<td id="E66F8307F40EE6ADFAB51F1CFA1C50E1" box="[1364,1419,375,399]" gridcol="10" gridrow="0" pageId="36" pageNumber="103">
<emphasis id="29FA342BF40E1976FAB51F1CFA1C50E1" bold="true" box="[1364,1419,375,399]" pageId="36" pageNumber="103">IZW</emphasis>
</td>
</tr>
<tr id="A5BEEA7BF40EE6ADFF0B1FC3FA1C50AE" box="[234,1419,424,448]" gridrow="1" pageId="36" pageNumber="103">
<th id="E66F8307F40EE6ADFF0B1FC3FE1D50AE" box="[234,394,424,448]" gridcol="0" gridrow="1" pageId="36" pageNumber="103">MB.C.30486</th>
<td id="E66F8307F40EE6ADFE341FC3FD9350AE" box="[469,516,424,448]" gridcol="1" gridrow="1" pageId="36" pageNumber="103">66.9</td>
<td id="E66F8307F40EE6ADFDCA1FC3FDCD50AE" box="[555,602,424,448]" gridcol="2" gridrow="1" pageId="36" pageNumber="103">21.7</td>
<td id="E66F8307F40EE6ADFD641FC3FD2350AE" box="[645,692,424,448]" gridcol="3" gridrow="1" pageId="36" pageNumber="103">23.4</td>
<td id="E66F8307F40EE6ADFD021FC3FC8550AE" box="[739,786,424,448]" gridcol="4" gridrow="1" pageId="36" pageNumber="103">27.6</td>
<td id="E66F8307F40EE6ADFCDD1FC3FCFC50AE" box="[828,875,424,448]" gridcol="5" gridrow="1" pageId="36" pageNumber="103">23.3</td>
<td id="E66F8307F40EE6ADFC711FC3FC7550AE" box="[912,994,424,448]" gridcol="6" gridrow="1" pageId="36" pageNumber="103">0.32</td>
<td id="E66F8307F40EE6ADFBE91FC3FBC050AE" box="[1032,1111,424,448]" gridcol="7" gridrow="1" pageId="36" pageNumber="103">0.93</td>
<td id="E66F8307F40EE6ADFB9C1FC3FB5C50AE" box="[1149,1227,424,448]" gridcol="8" gridrow="1" pageId="36" pageNumber="103">0.41</td>
<td id="E66F8307F40EE6ADFB111FC3FAA750AE" box="[1264,1328,424,448]" gridcol="9" gridrow="1" pageId="36" pageNumber="103">2.35</td>
<td id="E66F8307F40EE6ADFAB51FC3FA1C50AE" box="[1364,1419,424,448]" gridcol="10" gridrow="1" pageId="36" pageNumber="103">0.00</td>
</tr>
</table>
</paragraph>
<subSubSection id="5394BBB2F40E1976FF021F98FE7153CB" pageId="36" pageNumber="103" type="materials_examined">
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<emphasis id="29FA342BF40E1976FF021F98FE065363" bold="true" box="[227,401,499,525]" pageId="36" pageNumber="103">Type material</emphasis>
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<materialsCitation id="ABE6E264F40E1976FEF11C4AFE7153CB" ID-GBIF-Occurrence="3865861319" collectionCode="MB" collectorName="Wendt &amp; Kaufmann" country="Algeria" county="Kaufmann" location="Ahnet" municipality="Wendt" pageId="36" pageNumber="103" specimenCode="MB.C.30486" specimenCount="1" typeStatus="holotype">
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<typeStatus id="C435569BF40E1976FEF11C4AFE155355" box="[272,386,545,571]" pageId="36" pageNumber="103" type="holotype">Holotype</typeStatus>
</emphasis>
<collectingCountry id="6399A8A9F40E1976FF021C2EFEF35331" box="[227,356,581,607]" name="Algeria" pageId="36" pageNumber="103">ALGERIA</collectingCountry>
•
<location id="1E51BEE2F40E1976FE951C2FFE285330" LSID="urn:lsid:plazi:treatment:9327592FF4091976FD961870FC285403:1E51BEE2F40E1976FE951C2FFE285330" box="[372,447,580,606]" country="Algeria" county="Kaufmann" municipality="Wendt" name="Ahnet" pageId="36" pageNumber="103">Ahnet</location>
,
<locationDeviation id="0A83F11BF40E1976FE291C2FFCF15330" box="[456,870,580,607]" pageId="36" pageNumber="103">west-southwest of Gara Azzel Matti</locationDeviation>
; ‘
<location id="1E51BEE2F40E1976FC951C2FFBA75330" LSID="urn:lsid:plazi:treatment:9327592FF4091976FD961870FC285403:1E51BEE2F40E1976FC951C2FFBA75330" box="[884,1072,580,606]" country="Algeria" county="Kaufmann" municipality="Wendt" name="Dalle des Iridet'" pageId="36" pageNumber="103">Dalle des Iridet’</location>
(
<emphasis id="29FA342BF40E1976FBDE1C2FFA0B5330" box="[1087,1436,580,606]" italics="true" pageId="36" pageNumber="103">Ammonellipsites-Merocanites</emphasis>
Assemblage; Tournaisian–Viséan boundary interval);
<collectorName id="B67B8DEFF40E1976FC841C03FC2653EC" box="[869,945,616,642]" pageId="36" pageNumber="103">Wendt</collectorName>
and
<collectorName id="B67B8DEFF40E1976FC0E1C03FBFC53EC" box="[1007,1131,616,642]" pageId="36" pageNumber="103">Kaufmann</collectorName>
1995 Coll.; illustrated in
<figureCitation id="83B5F4BCF40E1976FF021CE0FEAD53CB" box="[227,314,651,677]" captionStart="Fig" captionStartId="36.[227,270,2001,2027]" captionTargetBox="[232,1431,1425,1963]" captionTargetId="figure-272@36.[227,1437,1421,1969]" captionTargetPageId="36" captionText="Fig. 29. Maccoyoceras concavum sp. nov., holotype MB.C.30486 (Wendt and Kaufmann 1995 Coll.) from Azzel Matti. Scale bar units=1 mm." figureDoi="http://doi.org/10.5281/zenodo.6902650" httpUri="https://zenodo.org/record/6902650/files/figure.png" pageId="36" pageNumber="103">Fig. 29</figureCitation>
;
<specimenCode id="4B284042F40E1976FEA41CE0FE7553CB" box="[325,482,651,677]" pageId="36" pageNumber="103">MB.C.30486</specimenCode>
.
</materialsCitation>
</paragraph>
</subSubSection>
<subSubSection id="5394BBB2F40E1976FF021CA7FB1055D8" pageId="36" pageNumber="103" type="description">
<paragraph id="1B31E839F40E1976FF021CA7FEE35388" blockId="36.[227,372,716,742]" box="[227,372,716,742]" pageId="36" pageNumber="103">
<heading id="40795F55F40E1976FF021CA7FEE35388" bold="true" box="[227,372,716,742]" fontSize="11" level="3" pageId="36" pageNumber="103" reason="3">
<emphasis id="29FA342BF40E1976FF021CA7FEE35388" bold="true" box="[227,372,716,742]" pageId="36" pageNumber="103">Description</emphasis>
</heading>
</paragraph>
<paragraph id="1B31E839F40E1976FF021C90FBD55286" blockId="36.[227,1437,763,1001]" pageId="36" pageNumber="103">
<typeStatus id="C435569BF40E1976FF021C90FEC7527B" box="[227,336,763,789]" pageId="36" pageNumber="103" type="holotype">Holotype</typeStatus>
MB.C.30486 is a rather well-preserved, almost completely chambered specimen with
<quantity id="DC7645DCF40E1976FAAB1C90FA0A527B" box="[1354,1437,763,789]" metricMagnitude="-2" metricUnit="m" metricValue="7.6" pageId="36" pageNumber="103" unit="mm" value="76.0">76 mm</quantity>
conch diameter, from which the last, poorly preserved segment was removed before photography (
<figureCitation id="83B5F4BCF40E1976FF0A1D2AFEDF5235" box="[235,328,833,859]" captionStart="Fig" captionStartId="36.[227,270,2001,2027]" captionTargetBox="[232,1431,1425,1963]" captionTargetId="figure-272@36.[227,1437,1421,1969]" captionTargetPageId="36" captionText="Fig. 29. Maccoyoceras concavum sp. nov., holotype MB.C.30486 (Wendt and Kaufmann 1995 Coll.) from Azzel Matti. Scale bar units=1 mm." figureDoi="http://doi.org/10.5281/zenodo.6902650" httpUri="https://zenodo.org/record/6902650/files/figure.png" pageId="36" pageNumber="103">Fig. 29</figureCitation>
). The specimen allows the study from both sides. The conch is extremely discoidal (ww/ dm =0.32) and subevolute (uw/dm =0.41) with a very high coiling rate (WER =2.35). The whorl profile is compressed hexagonal (ww/wh =0.93) and widest at the rounded umbilical margin. The flanks stand almost parallel and converge barely towards the angular ventrolateral shoulder that separates the flanks from the weakly concave venter. The umbilical wall is convexly rounded.
</paragraph>
<paragraph id="1B31E839F40E1976FF021A7BFB1055D8" blockId="36.[226,1436,1039,1207]" pageId="36" pageNumber="103">
Two ontogenetic stages of the ornament development can be separated: up to
<quantity id="DC7645DCF40E1976FB821A7BFB225544" box="[1123,1205,1040,1066]" metricMagnitude="-2" metricUnit="m" metricValue="1.7" pageId="36" pageNumber="103" unit="mm" value="17.0">17 mm</quantity>
conch diameter, six coarse, crenulated spiral lines on the flank are the dominant elements in the juvenile stage. Thereafter, fine but sharp narrow-standing growth lines with weakly biconvex course form the ornament on the flanks, but the venter bears very delicate growth lines with a deep ventral sinus. The suture line shows a shallow ventral lobe and a shallow lateral lobe. The siphuncle is almost central.
</paragraph>
</subSubSection>
<subSubSection id="5394BBB2F40E1976FF021AB5FC285403" pageId="36" pageNumber="103" type="discussion">
<paragraph id="1B31E839F40E1976FF021AB5FEC25596" blockId="36.[227,341,1246,1272]" box="[227,341,1246,1272]" pageId="36" pageNumber="103">
<heading id="40795F55F40E1976FF021AB5FEC25596" bold="true" box="[227,341,1246,1272]" fontSize="11" level="3" pageId="36" pageNumber="103" reason="3">
<emphasis id="29FA342BF40E1976FF021AB5FEC25596" bold="true" box="[227,341,1246,1272]" pageId="36" pageNumber="103">Remarks</emphasis>
</heading>
</paragraph>
<paragraph id="1B31E839F40E1976FF021B66FC285403" blockId="36.[227,1436,1292,1389]" pageId="36" pageNumber="103">
<taxonomicName id="DC8E93BAF40E1976FF021B66FD9A5448" authority="Korn &amp; Bockwinkel, 2022" authorityName="Korn &amp; Bockwinkel" authorityYear="2022" box="[227,525,1293,1318]" class="Cephalopoda" family="Trigonoceratidae" genus="Maccoyoceras" higherTaxonomySource="GBIF" kingdom="Animalia" order="Nautilida" pageId="36" pageNumber="103" phylum="Mollusca" rank="species" species="concavum" status="sp. nov.">
<emphasis id="29FA342BF40E1976FF021B66FD9A5448" box="[227,525,1293,1318]" italics="true" pageId="36" pageNumber="103">Maccoyoceras concavum</emphasis>
</taxonomicName>
<taxonomicNameLabel id="32C98950F40E1976FDF41B66FDE65449" box="[533,625,1293,1319]" pageId="36" pageNumber="103" rank="species">sp. nov.</taxonomicNameLabel>
has conch proportions very similar to those of
<taxonomicName id="DC8E93BAF40E1976FB421B66FACB5448" authorityName="Korn, Miao &amp; Bockwinkel" authorityYear="2022" box="[1187,1372,1293,1318]" class="Cephalopoda" family="Trigonoceratidae" genus="Maccoyoceras" higherTaxonomySource="GBIF" kingdom="Animalia" order="Nautilida" pageId="36" pageNumber="103" phylum="Mollusca" rank="species" species="pentagonum">
<emphasis id="29FA342BF40E1976FB421B66FACB5448" box="[1187,1372,1293,1318]" italics="true" pageId="36" pageNumber="103">M. pentagonum</emphasis>
</taxonomicName>
from the contemporaneous ‘Dalle à
<taxonomicName id="DC8E93BAF40E1976FDB01B5BFD765427" box="[593,737,1328,1353]" class="Cephalopoda" family="Prolecanitidae" genus="Merocanites" kingdom="Animalia" order="Ammonoidea" pageId="36" pageNumber="103" phylum="Mollusca" rank="genus">
<emphasis id="29FA342BF40E1976FDB01B5BFD765427" box="[593,737,1328,1353]" italics="true" pageId="36" pageNumber="103">Merocanites</emphasis>
</taxonomicName>
’ of Timimoun. However, the new species differs from this and from the other species of the genus by the concave venter.
</paragraph>
</subSubSection>
</treatment>
</document>
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