210 lines
25 KiB
XML
210 lines
25 KiB
XML
<document id="4D7D18208EB1A271D5FE1A5B5C759F05" ID-CLB-Dataset="7746" ID-DOI="10.5252/geodiversitas2021v43a5" ID-GBIF-Dataset="e42658a2-0e15-4e90-9bc5-0d00cbcbd781" ID-ISSN="1638-9395" ID-Zenodo-Dep="4605963" ID-ZooBank="urn:lsid:zoobank.org:pub:697FC553-E37B-4EF9-97A4-950E4DEE246C" IM.materialsCitations_approvedBy="felipe" IM.metadata_approvedBy="felipe" IM.tables_requiresApprovalFor="existingObjects,plazi" IM.taxonomicNames_approvedBy="felipe" checkinTime="1615828395930" checkinUser="felipe" docAuthor="Zouhri, Samir, Gingerich, Philip D., Khalloufi, Bouziane, Bourdon, Estelle, Adnet, Sylvain, Jouve, Stéphane, Elboudali, Najia, Amane, Ayoub, Rage, Jean-Claude & Tabuce, Rodolphe" docDate="2021" docId="03923C45FF8BFF823171FC2BFAF014FE" docLanguage="en" docName="Geodiversitas.43.5.121-150.pdf" docOrigin="Geodiversitas 43 (5)" docStyle="DocumentStyle:F830B10FF475E64C1F1601E3B32DDC00.4:Geodiversitas.2018-.journal_article" docStyleId="F830B10FF475E64C1F1601E3B32DDC00" docStyleName="Geodiversitas.2018-.journal_article" docStyleVersion="4" docTitle="Carcharhinus Blainville 1816" docType="treatment" docVersion="8" lastPageNumber="129" masterDocId="FFAB443DFF81FF883018FFDFFF95166E" masterDocTitle="Middle Eocene vertebrate fauna from the Aridal Formation, Sabkha of Gueran, southwestern Morocco" masterLastPageNumber="150" masterPageNumber="121" pageNumber="129" updateTime="1698933443279" updateUser="ExternalLinkService" zenodo-license-document="CC0-1.0" zenodo-license-figures="CC0-1.0">
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<mods:titleInfo id="5BACE428F9B394EB4E808283C8F4162F">
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<mods:title id="075EFC5E853F9662AD06494E08DBDF34">Middle Eocene vertebrate fauna from the Aridal Formation, Sabkha of Gueran, southwestern Morocco</mods:title>
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<mods:name id="0033A335C0F8493E2D5077122A6B6D37" type="personal">
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<mods:roleTerm id="8C54BC9E1FE7283F9868F05CD0CFB819">Author</mods:roleTerm>
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<mods:namePart id="F02D6D0818FCD61051C03DDA1047824C">Zouhri, Samir</mods:namePart>
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<mods:roleTerm id="D6237D2E54AC8404FE6ADC69263CDA53">Author</mods:roleTerm>
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<mods:namePart id="B0142A0E47F41F0223D81702C2500A2D">Gingerich, Philip D.</mods:namePart>
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</mods:name>
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<mods:name id="BBE2FB559CFD38F8A6D6F47B0DCBA91F" type="personal">
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<mods:roleTerm id="39963FFFE5C318AFA16AE06F32E49C96">Author</mods:roleTerm>
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</mods:role>
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<mods:namePart id="69FF154D9D3D2EF89D9A692E3E2F3890">Khalloufi, Bouziane</mods:namePart>
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</mods:name>
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<mods:name id="30AD974EEB9213A4404A1CDEAEC8EFE5" type="personal">
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<mods:roleTerm id="A165B49FD1CA280654F6102AC9166669">Author</mods:roleTerm>
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</mods:role>
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<mods:namePart id="07EAFE0C7369057CAC0142D4E5C7C2BF">Bourdon, Estelle</mods:namePart>
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</mods:name>
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<mods:roleTerm id="A2C57B878A97616FDA2C4AF571BAB691">Author</mods:roleTerm>
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</mods:role>
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<mods:namePart id="FA6E2ACAE81FF87A9CDD5052B0DEDD44">Adnet, Sylvain</mods:namePart>
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</mods:name>
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<mods:roleTerm id="2AB86A98EC900F44D7AC06673F529382">Author</mods:roleTerm>
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</mods:role>
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<mods:namePart id="8548EBF5A4B779CA69FE98D7A55788A1">Jouve, Stéphane</mods:namePart>
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</mods:name>
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</mods:role>
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<mods:namePart id="18E3B7B4FBD30DCCE15D5441F46D1EFD">Elboudali, Najia</mods:namePart>
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</mods:name>
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<mods:name id="80454107E19543E5B64125124828702A" type="personal">
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<mods:roleTerm id="C4071DE8719DFF504BEFD39CD82CBDAF">Author</mods:roleTerm>
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</mods:role>
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<mods:namePart id="38E54EA5DBF9F2EF2A4A5A003CEBA2D8">Amane, Ayoub</mods:namePart>
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</mods:name>
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<mods:name id="B8D2CC12ED2C36B59EED0845CB44BEE5" type="personal">
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</mods:role>
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<mods:namePart id="6FB5699F172DFA4C2791A8F9726A4EBE">Rage, Jean-Claude</mods:namePart>
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</mods:name>
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<mods:name id="C36956897DA547170429059D845FF6B2" type="personal">
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<mods:roleTerm id="BD272C5659E5CF3B243FBC62F38C0249">Author</mods:roleTerm>
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</mods:role>
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<mods:namePart id="CF0970777F8B113436A78865E986E5F5">Tabuce, Rodolphe</mods:namePart>
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<mods:typeOfResource id="FA1D40CCA80224567BCA21AE790947F1">text</mods:typeOfResource>
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<mods:titleInfo id="D1EB23BF3E5110496E9B5FAC85688A44">
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<mods:title id="7D6BB9BD58E1FBC3CBD3C1B8091B4634">Geodiversitas</mods:title>
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</mods:titleInfo>
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<mods:part id="2C449650A7A209D59F063CA082226B07">
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<mods:date id="381489870D6285B3E31EAFDA8E1BE58F">2021</mods:date>
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<mods:detail id="BD1252E1E5F881D92D7479A7914BBE2A" type="pubDate">
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<mods:number id="D0C9D3839F4AC06E6B58737F207EBA53">2021-03-11</mods:number>
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</mods:detail>
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<mods:detail id="C03EECA29E204ADF3EE79F59EF5FD74C" type="volume">
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<mods:number id="E84B0628878F2971B0CC0018CFDA09C5">43</mods:number>
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</mods:detail>
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<mods:detail id="8A3DF7C9891333E96F717952A42C7ABB" type="issue">
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<mods:number id="75FA551DA2C5449E7F9FFD41E2B88DFC">5</mods:number>
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<mods:start id="92C39641E5A3BED2499BAE821E77E515">121</mods:start>
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<mods:end id="5B296DFCF93F9FFB7C05BCF9206B4BF4">150</mods:end>
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</mods:extent>
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<mods:classification id="254BB9E177D49A378C64846806BF625D">journal article</mods:classification>
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<mods:identifier id="A022FD702768A23E7532C923BEF99441" type="CLB-Dataset">7746</mods:identifier>
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<mods:identifier id="2446EF0572285D647D2C78132186CA85" type="DOI">10.5252/geodiversitas2021v43a5</mods:identifier>
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<mods:identifier id="E9F823FEF5D36F6AF05C1DD73DC70687" type="GBIF-Dataset">e42658a2-0e15-4e90-9bc5-0d00cbcbd781</mods:identifier>
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<mods:identifier id="6407C4EDBD107E353ED892198CB0C3DB" type="ISSN">1638-9395</mods:identifier>
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<mods:identifier id="5220AA92A1372F18726E41D59815CAEF" type="Zenodo-Dep">4605963</mods:identifier>
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<mods:identifier id="2443DAABCC70817227913DD7723C0387" type="ZooBank">urn:lsid:zoobank.org:pub:697FC553-E37B-4EF9-97A4-950E4DEE246C</mods:identifier>
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</mods:mods>
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<treatment id="03923C45FF8BFF823171FC2BFAF014FE" ID-DOI="http://doi.org/10.5281/zenodo.4605829" ID-GBIF-Taxon="180569468" ID-Zenodo-Dep="4605829" LSID="urn:lsid:plazi:treatment:03923C45FF8BFF823171FC2BFAF014FE" httpUri="http://treatment.plazi.org/id/03923C45FF8BFF823171FC2BFAF014FE" lastPageNumber="129" pageId="10" pageNumber="129">
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<subSubSection id="C321DED8FF8BFF823171FC2BFDB61261" box="[361,547,1012,1039]" pageId="10" pageNumber="129" type="nomenclature">
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<paragraph id="8B848D53FF8BFF823171FC2BFDB61261" blockId="10.[361,547,1012,1039]" box="[361,547,1012,1039]" pageId="10" pageNumber="129">
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<heading id="D0CC3A3FFF8BFF823171FC2BFDB61261" box="[361,547,1012,1039]" centered="true" fontSize="11" level="2" pageId="10" pageNumber="129" reason="2">
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<taxonomicName id="4C3BF6D0FF8BFF823171FC2BFE691260" ID-CoL="3HC4" ID-ENA="7806" authorityName="Blainville" authorityYear="1816" box="[361,508,1012,1038]" class="Elasmobranchii" family="Carcharhinidae" genus="Carcharhinus" kingdom="Animalia" order="Carcharhiniformes" pageId="10" pageNumber="129" phylum="Chordata" rank="genus">
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<emphasis id="B94F5141FF8BFF823171FC2BFE691260" box="[361,508,1012,1038]" italics="true" pageId="10" pageNumber="129">Carcharhinus</emphasis>
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</taxonomicName>
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sp.
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</heading>
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</paragraph>
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</subSubSection>
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<subSubSection id="C321DED8FF8BFF82309CFBEAFE0212E0" pageId="10" pageNumber="129" type="materials_examined">
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<paragraph id="8B848D53FF8BFF82309CFBEAFF631223" blockId="10.[132,774,1077,1167]" box="[132,246,1077,1103]" pageId="10" pageNumber="129">MATERIAL</paragraph>
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<paragraph id="8B848D53FF8BFF82309CFB8BFE0212E0" blockId="10.[132,774,1077,1167]" pageId="10" pageNumber="129">
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<materialsCitation id="3B53870EFF8BFF82309CFB8BFE0612E0" ID-GBIF-Occurrence="3053068302" pageId="10" pageNumber="129">
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A dozen isolated teeth, figured material includes
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<collectionCode id="ED2A1596FF8BFF8232DBFB8BFC931200" box="[707,774,1108,1134]" pageId="10" pageNumber="129">FSAC</collectionCode>
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Bouj-345, 346 and 347
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</materialsCitation>
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.
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</paragraph>
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</subSubSection>
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<subSubSection id="C321DED8FF8BFF82309CFB6BFAF014FE" pageId="10" pageNumber="129" type="description">
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<paragraph id="8B848D53FF8BFF82309CFB6BFE2812A2" blockId="10.[131,777,1204,2028]" box="[132,445,1204,1230]" pageId="10" pageNumber="129">DESCRIPTION AND REMARKS</paragraph>
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<paragraph id="8B848D53FF8BFF82309CFB0BFAF014FE" blockId="10.[131,777,1204,2028]" lastBlockId="10.[811,1458,215,656]" pageId="10" pageNumber="129">
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Some rare medium-sized sharks (
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<figureCitation id="130091D6FF8BFF8231FCFB0BFDB41280" box="[484,545,1236,1262]" captionStart="FIG" captionStartId="9.[132,143,1751,1768]" captionTargetBox="[132,1455,215,1708]" captionTargetId="figure-89@9.[698,1267,774,1335]" captionTargetPageId="9" captionText="FIG. 3. — Elasmobranchii from Sabkha of Gueran collected around the Archaeocete whale carcasses.(A-F) Tethylamna cf.twiggsensis: A, FSAC Bouj-331 anterior lower tooth in labial view; B, FSAC Bouj-332 anterolateral lower tooth in labial view; C, FSAC Bouj-333 lateral lower tooth in (C1) labial and (C2) lingual views; D, FSAC Bouj-334 posterior lower tooth in labial view; E, FSAC Bouj-335 lateral lower tooth in (E1) labial and (E2) lingual views; F, FSAC Bouj-336 anterior upper tooth in (F1) labial and (F2) lingual views. G-I, Galeocerdo cf. eaglesomei; G, FSAC Bouj-337 anterior tooth in (G1) labial and (G2) lingual views; H, FSAC Bouj- 338 anterolateral tooth in lingual view; I, FSAC Bouj-339 lateral tooth in (I1) labial and (I2) lingual views. Scale bar: 10 mm." figureDoi="http://doi.org/10.5281/zenodo.4605969" httpUri="https://zenodo.org/record/4605969/files/figure.png" pageId="10" pageNumber="129">Fig. 3</figureCitation>
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G-I) are provisionally attributed to
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<taxonomicName id="4C3BF6D0FF8BFF823102FB2CFE3A1363" authorityName="Blainville" authorityYear="1816" box="[282,431,1267,1293]" class="Elasmobranchii" family="Carcharhinidae" genus="Carcharhinus" kingdom="Animalia" order="Carcharhiniformes" pageId="10" pageNumber="129" phylum="Chordata" rank="genus">
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<emphasis id="B94F5141FF8BFF823102FB2CFE3A1363" box="[282,431,1267,1293]" italics="true" pageId="10" pageNumber="129">Carcharhinus</emphasis>
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</taxonomicName>
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sp. The upper tooth (
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<figureCitation id="130091D6FF8BFF8232BFFB2CFD6A1360" box="[679,767,1267,1294]" captionStart="FIG" captionStartId="11.[132,143,1894,1911]" captionTargetBox="[132,1455,215,1866]" captionTargetId="figure-15@11.[132,1455,215,1866]" captionTargetPageId="11" captionText="FIG. 4. — Elasmobranchii from Sabkha of Gueran collected around the Archaeocete whale carcasses.A-C, Physogaleus sp.: A, FSAC Bouj-340 anterolateral tooth (A1) labial and (A2) lingual views; B, FSAC Bouj-341 more anterolateral tooth in (B1) labial and (B2) lingual views; C, FSAC Bouj-342 lateral tooth in (C1) labial and (C2) lingual views; D, FSAC Bouj-343 Hemipristis curvatus lateral upper tooth in (D1) labial and (D2) lingual views; E, F, FSAC Bouj-344 Abdounia sp. lateral teeth in labial (E1, F1) and lingual (E2, F2) views; G-I, Cf. Carcharhinus sp.: G, FSAC Bouj-345 lateral upper tooth in (G1) labial and (G2) lingual views; H, FSAC Bouj-346 lateral lower tooth (H1) labial and (H2) lingual views; I, FSAC Bouj-347 anterior lower tooth in (I1) labial and (I2) lingual views. J, Propristis schweinfurthi FSAC Bouj-348 rostral “tooth” in (J1) dorsal and (J2) lateral views. Scale bars: 10 mm." figureDoi="http://doi.org/10.5281/zenodo.4605973" httpUri="https://zenodo.org/record/4605973/files/figure.png" pageId="10" pageNumber="129">Fig. 4G</figureCitation>
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) reminds those of
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<taxonomicName id="4C3BF6D0FF8BFF82315CFACBFE231343" authorityName="Whitley" authorityYear="1940" box="[324,438,1300,1325]" class="Elasmobranchii" family="Carcharhinidae" genus="Negaprion" kingdom="Animalia" order="Carcharhiniformes" pageId="10" pageNumber="129" phylum="Chordata" rank="genus">
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<emphasis id="B94F5141FF8BFF82315CFACBFE231343" box="[324,438,1300,1325]" italics="true" pageId="10" pageNumber="129">Negaprion</emphasis>
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</taxonomicName>
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sp. (unserrated cutting edges, main cusp separated from heels by notches) associated with erect and gracile lower teeth (
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<figureCitation id="130091D6FF8BFF8231D6FA8CFDA81300" box="[462,573,1363,1390]" captionStart="FIG" captionStartId="11.[132,143,1894,1911]" captionTargetBox="[132,1455,215,1866]" captionTargetId="figure-15@11.[132,1455,215,1866]" captionTargetPageId="11" captionText="FIG. 4. — Elasmobranchii from Sabkha of Gueran collected around the Archaeocete whale carcasses.A-C, Physogaleus sp.: A, FSAC Bouj-340 anterolateral tooth (A1) labial and (A2) lingual views; B, FSAC Bouj-341 more anterolateral tooth in (B1) labial and (B2) lingual views; C, FSAC Bouj-342 lateral tooth in (C1) labial and (C2) lingual views; D, FSAC Bouj-343 Hemipristis curvatus lateral upper tooth in (D1) labial and (D2) lingual views; E, F, FSAC Bouj-344 Abdounia sp. lateral teeth in labial (E1, F1) and lingual (E2, F2) views; G-I, Cf. Carcharhinus sp.: G, FSAC Bouj-345 lateral upper tooth in (G1) labial and (G2) lingual views; H, FSAC Bouj-346 lateral lower tooth (H1) labial and (H2) lingual views; I, FSAC Bouj-347 anterior lower tooth in (I1) labial and (I2) lingual views. J, Propristis schweinfurthi FSAC Bouj-348 rostral “tooth” in (J1) dorsal and (J2) lateral views. Scale bars: 10 mm." figureDoi="http://doi.org/10.5281/zenodo.4605973" httpUri="https://zenodo.org/record/4605973/files/figure.png" pageId="10" pageNumber="129">Fig. 4H, I</figureCitation>
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) usually observed in
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<emphasis id="B94F5141FF8BFF8230BFFAACFEDF13E3" box="[167,330,1395,1421]" italics="true" pageId="10" pageNumber="129">
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<taxonomicName id="4C3BF6D0FF8BFF8230BFFAACFED313E3" authorityName="Blainville" authorityYear="1816" box="[167,326,1395,1421]" class="Elasmobranchii" family="Carcharhinidae" genus="Carcharhinus" kingdom="Animalia" order="Carcharhiniformes" pageId="10" pageNumber="129" phylum="Chordata" rank="genus">Carcharhinus</taxonomicName>
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,
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</emphasis>
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and especially in Priabonian species
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<taxonomicName id="4C3BF6D0FF8BFF82309CFA4CFE3F13C3" authority="(Dames, 1883)" baseAuthorityName="Dames" baseAuthorityYear="1883" box="[132,426,1427,1453]" class="Elasmobranchii" family="Odontaspididae" genus="Carcharias" kingdom="Animalia" order="Lamniformes" pageId="10" pageNumber="129" phylum="Chordata" rank="species" species="frequens">
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<emphasis id="B94F5141FF8BFF82309CFA4CFF6E13C3" box="[132,251,1427,1453]" italics="true" pageId="10" pageNumber="129">C. frequens</emphasis>
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(Dames, 1883)
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</taxonomicName>
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. Assignement of middle Eocene carcharhinid teeth to genera
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<taxonomicName id="4C3BF6D0FF8BFF8231CEFA6CFDF913A3" authorityName="Blainville" authorityYear="1816" box="[470,620,1459,1485]" class="Elasmobranchii" family="Carcharhinidae" genus="Carcharhinus" kingdom="Animalia" order="Carcharhiniformes" pageId="10" pageNumber="129" phylum="Chordata" rank="genus">
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<emphasis id="B94F5141FF8BFF8231CEFA6CFDF913A3" box="[470,620,1459,1485]" italics="true" pageId="10" pageNumber="129">Carcharhinus</emphasis>
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</taxonomicName>
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or
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<taxonomicName id="4C3BF6D0FF8BFF82328EFA6BFEBD1383" authority="Whitley, 1940" authorityName="Whitley" authorityYear="1940" class="Elasmobranchii" family="Carcharhinidae" genus="Negaprion" kingdom="Animalia" order="Carcharhiniformes" pageId="10" pageNumber="129" phylum="Chordata" rank="genus">
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<emphasis id="B94F5141FF8BFF82328EFA6BFC9C13A3" box="[662,777,1460,1485]" italics="true" pageId="10" pageNumber="129">Negaprion</emphasis>
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Whitley, 1940
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</taxonomicName>
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remains debatable and uncertain (see also
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<bibRefCitation id="EFAAF0A2FF8BFF82309CFA2CFEF21063" author="SWEYDAN S. & MERZERAU G. & ESSID E. M. & MARZOUGUI W. & TEMANI R. & AMMAR H. K. & MARIVAUX L. & LIAUD M. & TABUCE R. & ADNET S." box="[132,359,1523,1549]" pageId="10" pageNumber="129" pagination="194 - 206" refId="ref25710" refString="SWEYDAN S., MERZERAU G., ESSID E. M., MARZOUGUI W., TEMANI R., AMMAR H. K., MARIVAUX L., VINAEY- LIAUD M., TABUCE R. & ADNET S. 2019. - A reworked elasmobranch fauna from Tunisia providing a snapshot of Eocene-Oligocene Tethyan faunas. Journal of African Earth Sciences 149: 194 - 206. https: // doi. org / 10.1016 / j. jafrearsci. 2018.08.008" type="journal article" year="2019">
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Sweydan
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<emphasis id="B94F5141FF8BFF8230F7FA2CFEB01063" box="[239,293,1523,1549]" italics="true" pageId="10" pageNumber="129">et al.</emphasis>
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2019
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</bibRefCitation>
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for discussion) but its attribution to
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<taxonomicName id="4C3BF6D0FF8BFF82309CF9CDFE8F1042" authorityName="Blainville" authorityYear="1816" box="[132,282,1554,1580]" class="Elasmobranchii" family="Carcharhinidae" genus="Carcharhinus" kingdom="Animalia" order="Carcharhiniformes" pageId="10" pageNumber="129" phylum="Chordata" rank="genus">
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<emphasis id="B94F5141FF8BFF82309CF9CDFE8F1042" box="[132,282,1554,1580]" italics="true" pageId="10" pageNumber="129">Carcharhinus</emphasis>
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</taxonomicName>
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seemly more appropriate in regard to the dignathic heterodonty.
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<bibRefCitation id="EFAAF0A2FF8BFF823185F9EDFD5C1023" author="UNDERWOOD C. J. & WARD D. J. & KING C. & ANTAR S. M. & MOUT I. S. & GINGERICH P. D." box="[413,713,1586,1613]" pageId="10" pageNumber="129" pagination="47 - 66" refId="ref26062" refString="UNDERWOOD C. J., WARD D. J., KING C., ANTAR S. M., ZAL- MOUT I. S. & GINGERICH P. D. 2011. - Shark and ray faunas in the middle and late Eocene of the Fayum area, Egypt. Proceedings of the Geologists' Association 122: 47 - 66. https: // doi. org / 10.1016 / j. pgeola. 20" type="journal article" year="2011">
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Underwood
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<emphasis id="B94F5141FF8BFF82322CF9ECFDFB1022" box="[564,622,1586,1612]" italics="true" pageId="10" pageNumber="129">et al.</emphasis>
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(2011)
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</bibRefCitation>
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only reported a “
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<taxonomicName id="4C3BF6D0FF8BFF823114F98DFE551002" authority="Zouhri & Gingerich & Khalloufi & Bourdon & Adnet & Jouve & Elboudali & Amane & Rage & Tabuce, 2021" authorityName="Zouhri & Gingerich & Khalloufi & Bourdon & Adnet & Jouve & Elboudali & Amane & Rage & Tabuce" authorityYear="2021" box="[268,448,1618,1644]" class="Elasmobranchii" family="Carcharhinidae" kingdom="Animalia" order="Carcharhiniformes" pageId="10" pageNumber="129" phylum="Chordata" rank="family" status="gen. nov.">Carcharhinidae</taxonomicName>
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<taxonomicNameLabel id="A27CEC3AFF8BFF8231D0F98DFDBC1002" box="[456,553,1618,1644]" pageId="10" pageNumber="129" rank="genus">nov.gen.</taxonomicNameLabel>
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” (sic) with smooth cutting edges in the middle Eocene MI, which is easily distinguishable from our material. No other mediumsized carcharhinid was collected within the studied area, particularly no representative of the “bull-shark” group among the Requiem sharks (see
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<bibRefCitation id="EFAAF0A2FF8BFF8231E6F92DFD521162" author="ADNET S. & ANTOINE P. O. & HASSAN BAQRIS & CROCHET J. Y. & MARIVAUX L. & WELCOMME J. L. & METAIS G." box="[510,711,1778,1804]" pageId="10" pageNumber="129" pagination="303 - 323" refId="ref18851" refString="ADNET S., ANTOINE P. O., HASSAN BAQRIS. R., CROCHET J. Y., MARIVAUX L., WELCOMME J. L. & METAIS G. 2007. - On the first modern and tropical Selachian association (Chondrichthyes) from the late Eocene-early Oligocene of Baluchistan, Pakistan. Dating interests, paleoenvironment and paleobiogeography. Journal of Asian Earth Sciences 30: 303 - 323. https: // doi. org / 10.1017 / S 0016756810000348" type="journal article" year="2007">
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Adnet
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<emphasis id="B94F5141FF8BFF823253F92CFD161162" box="[587,643,1778,1804]" italics="true" pageId="10" pageNumber="129">et al.</emphasis>
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2007
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</bibRefCitation>
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) that displays upper teeth with a modern morphology (e.g., serrated cutting edges). However, such representative was possibly reported in MI by
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<bibRefCitation id="EFAAF0A2FF8BFF8231F5F88EFD6A1102" author="UNDERWOOD C. J. & WARD D. J. & KING C. & ANTAR S. M. & MOUT I. S. & GINGERICH P. D." box="[493,767,1873,1900]" pageId="10" pageNumber="129" pagination="47 - 66" refId="ref26062" refString="UNDERWOOD C. J., WARD D. J., KING C., ANTAR S. M., ZAL- MOUT I. S. & GINGERICH P. D. 2011. - Shark and ray faunas in the middle and late Eocene of the Fayum area, Egypt. Proceedings of the Geologists' Association 122: 47 - 66. https: // doi. org / 10.1016 / j. pgeola. 20" type="journal article" year="2011">
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Underwood
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<emphasis id="B94F5141FF8BFF823265F88DFD261105" box="[637,691,1873,1899]" italics="true" pageId="10" pageNumber="129">et al.</emphasis>
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(2011
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</bibRefCitation>
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:
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<taxonomicName id="4C3BF6D0FF8BFF82309CF8AEFEB511E5" authorityName="Blainville" authorityYear="1816" box="[132,288,1905,1931]" class="Elasmobranchii" family="Carcharhinidae" genus="Carcharhinus" kingdom="Animalia" order="Carcharhiniformes" pageId="10" pageNumber="129" phylum="Chordata" rank="genus">
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<emphasis id="B94F5141FF8BFF82309CF8AEFEB511E5" box="[132,288,1905,1931]" italics="true" pageId="10" pageNumber="129">Carcharhinus</emphasis>
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</taxonomicName>
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sp. 1) but the rare specimens are often poorly preserved and were provisionally referred to taxa only well-identified in Priabonian levels.
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<bibRefCitation id="EFAAF0A2FF8BFF823247F86EFEBE1182" author="UNDERWOOD C. J. & GUNTER G. C." pageId="10" pageNumber="129" pagination="25 - 30" refId="ref26019" refString="UNDERWOOD C. J. & GUNTER G. C. 2012. - The shark Carcharhinus sp. from the middle Eocene of Jamaica and the Eocene record of Carcharhinus. Caribbean Journal of Earth Science 44: 25 - 30." type="journal article" year="2012">Underwood & Gunter (2012)</bibRefCitation>
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illustrated a large and unique upper tooth probably representing one of the oldest evidences of “Bullshark” from
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<collectingCountry id="F32CCDC3FF8BFF8233D8FF28FB8D177F" box="[960,1048,247,273]" name="Jamaica" pageId="10" pageNumber="129">Jamaica</collectingCountry>
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(
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<bibRefCitation id="EFAAF0A2FF8BFF823434FF28FAED177F" author="UNDERWOOD C. J. & GUNTER G. C." box="[1068,1400,247,273]" pageId="10" pageNumber="129" pagination="25 - 30" refId="ref26019" refString="UNDERWOOD C. J. & GUNTER G. C. 2012. - The shark Carcharhinus sp. from the middle Eocene of Jamaica and the Eocene record of Carcharhinus. Caribbean Journal of Earth Science 44: 25 - 30." type="journal article" year="2012">Underwood & Gunter 2012</bibRefCitation>
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: fig. 2); postulated to have been from the Yellow Limestone Group exposed at Broomwell and dated as middle Eocene. However, the age of this unique evidence in still uncertain and no other middle Eocene record was verified. Uncertainty about the age of
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<taxonomicName id="4C3BF6D0FF8BFF823493FE49FCFA179E" authority="Samonds, Andrianavalona, Wallett, Zalmout & Ward, 2019" authorityName="Samonds, Andrianavalona, Wallett, Zalmout & Ward" authorityYear="2019" class="Elasmobranchii" family="Carcharhinidae" genus="Carcharhinus" kingdom="Animalia" order="Carcharhiniformes" pageId="10" pageNumber="129" phylum="Chordata" rank="species" species="underwoodi">
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<emphasis id="B94F5141FF8BFF823493FE49FA3A17DE" box="[1163,1455,406,432]" italics="true" pageId="10" pageNumber="129">Carcharhinus underwoodi</emphasis>
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<bibRefCitation id="EFAAF0A2FF8BFF823335FE69FCFA179E" author="SAMONDS K. E. & ANDRIANAVALONA T. H. & WALLETT L. A. & ZALMOUT I. S. & WARD D. J." pageId="10" pageNumber="129" pagination="0211789" refId="ref25248" refString="SAMONDS K. E., ANDRIANAVALONA T. H., WALLETT L. A., ZALMOUT I. S. & WARD D. J. 2019. - A middle-late Eocene neoselachian assemblage from nearshore marine deposits, Mahajanga Basin, northwestern Madagascar. PLoS ONE 14 (2): e 0211789. https: // doi. org / 10.1371 / journal. pone. 0211789" type="journal article" year="2019">Samonds, Andrianavalona, Wallett, Zalmout & Ward, 2019</bibRefCitation>
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</taxonomicName>
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, the other oldest representative of “Bull-shark” group, is quite similar; being currently reported from middle to late Eocene of
|
|
<collectingCountry id="F32CCDC3FF8BFF82344DFDC9FB4B145E" box="[1109,1246,534,560]" name="Madagascar" pageId="10" pageNumber="129">Madagascar</collectingCountry>
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. The lack of large modern
|
|
<taxonomicName id="4C3BF6D0FF8BFF823397FDE9FBB0143E" authorityName="Blainville" authorityYear="1816" box="[911,1061,566,592]" class="Elasmobranchii" family="Carcharhinidae" genus="Carcharhinus" kingdom="Animalia" order="Carcharhiniformes" pageId="10" pageNumber="129" phylum="Chordata" rank="genus">
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<emphasis id="B94F5141FF8BFF823397FDE9FBB0143E" box="[911,1061,566,592]" italics="true" pageId="10" pageNumber="129">Carcharhinus</emphasis>
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</taxonomicName>
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species in Boujdour area seems to indicate an early Bartonian age of the deposits, at least their absence is paleoenvironmentally controlled.
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</paragraph>
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</subSubSection>
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</treatment>
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</document> |