260 lines
33 KiB
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260 lines
33 KiB
XML
<document ID-CLB-Dataset="20419" ID-DOI="http://dx.doi.org/10.3897/zitteliana.96.73892" ID-GBIF-Dataset="250ca9ac-a54b-4433-a689-ed5779b1dfd3" ID-Pensoft-Pub="2747-8106-96-1" ID-Pensoft-UUID="D5F97D7240455065AD6C43481AAD2D6D" ModsDocID="2747-8106-96-1" checkinTime="1646282116023" checkinUser="pensoft" docAuthor="Pandey, Dhirendra Kumar, Fuersich, Franz T., Alberti, Matthias, Das, Ranajit & Saez, Federico Oloriz" docDate="2022" docId="DB2B51B818815CC0AB7C783411FD8E3F" docLanguage="en" docName="Zitteliana 96: 1-49" docOrigin="Zitteliana 96" docPubDate="2022-03-02" docSource="http://dx.doi.org/10.3897/zitteliana.96.73892" docTitle="Ammonites Zittel 1884" docType="treatment" docVersion="5" id="D5F97D7240455065AD6C43481AAD2D6D" lastPageNumber="1" masterDocId="D5F97D7240455065AD6C43481AAD2D6D" masterDocTitle="First population-level study of the ammonite genus Hildoglochiceras Spath, and the Lower Tithonian record of the Hildoglochiceras Horizon in the Kachchh Basin, India" masterLastPageNumber="49" masterPageNumber="1" pageNumber="1" updateTime="1732743851667" updateUser="ExternalLinkService">
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<mods:title id="468080052FBAE99BA3A98DA362A20019">First population-level study of the ammonite genus Hildoglochiceras Spath, and the Lower Tithonian record of the Hildoglochiceras Horizon in the Kachchh Basin, India</mods:title>
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<mods:name id="C425B9A790CA5F08120630FDB33300D0" type="personal">
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<mods:namePart id="C29642920ED8CDD1851F167244B30869">Pandey, Dhirendra Kumar</mods:namePart>
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<mods:affiliation id="C71013A0BB0CA04377209CA378674699">Department of Geology, School of Earth, Biological and Environmental Science, Central University of South Bihar SH 7, Gaya-Panchanpur Road, Village Karhara, Post Fatehpur, Gaya 824236 (Bihar), India</mods:affiliation>
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<mods:nameIdentifier id="8DED68D45D9BF94EF63C70D02DDC447C" type="email">dhirendrap@cusb.ac.in</mods:nameIdentifier>
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<mods:namePart id="1C61CA4FFD166718C879FD6C24EECB3A">Fuersich, Franz T.</mods:namePart>
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<mods:affiliation id="E97AFF9A4FC16BD6970E71F25D8E1849">FG Palaeoumwelt, GeoZentrum Nordbayern der Friedrich-Alexander-Universitaet Erlangen-Nuernberg, Loewenichstrasse 28, 91054 Erlangen, Germany</mods:affiliation>
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</mods:name>
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<mods:namePart id="25383F53A5242AB27A821DCD3E41AA92">Alberti, Matthias</mods:namePart>
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<mods:affiliation id="63A88ACAB8A66E91956A8E515BDB7688">State Key Laboratory for Mineral Deposits Research, School of Earth Sciences and Engineering, Centre for Research and Education on Biological Evolution and Environment and Frontiers Science Center for Critical Earth Material Cycling, Nanjing University, Nanjing 210023, Jiangsu Province, China</mods:affiliation>
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</mods:name>
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<mods:name id="4731173657E8D3E989C3246BB66E812A" type="personal">
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<mods:namePart id="2D76C42022D55062FB144974A9F2F976">Das, Ranajit</mods:namePart>
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<mods:nameIdentifier id="2C7EDD0D1CA9ED5EEFEC512DC82918F1" type="ORCID">https://orcid.org/0000-0001-5308-3477</mods:nameIdentifier>
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<mods:affiliation id="2B738BE984202B9CD268FE5CDF0ED60C">Yenepoya Research Centre, Yenepoya (Deemed to be University), Mangalore- 575018, India</mods:affiliation>
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<mods:namePart id="A1C97672B63A3B35C7B51C663658027F">Saez, Federico Oloriz</mods:namePart>
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<mods:affiliation id="01F8D94BAAA7FA1C8EE1173F9EECEA6D">Departamento de Estratigrafia y Paleontologia, Fac. Ciencias, Univ. Granada, Severo Ochoa s / n, Spain</mods:affiliation>
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<mods:typeOfResource id="C0B5A0B53B10B3659F0CC29CE48EF83F">text</mods:typeOfResource>
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<mods:title id="D5A65F6560FD0EF5ED1850376893ADF5">Zitteliana</mods:title>
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<mods:date id="F41F3CC846FD1F5AADF2ED18FCC7977A">2022</mods:date>
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<mods:number id="27C3E36159612250860C73A042A97A35">2022-03-02</mods:number>
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<mods:detail id="A7FC424443FFBBFCF1E472B8C2FD2262" type="volume">
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<mods:number id="2FF538B8794155D60B1377F7EDF0EC77">96</mods:number>
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</mods:detail>
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<mods:extent id="FF943A8B23E37BC9B8DF3EA751CF4CB6" unit="page">
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<mods:start id="881455121E9C0871FFE4130A5EF4E80A">1</mods:start>
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<mods:end id="9818C2D4F0631244A10B898DEC64B8EF">49</mods:end>
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<mods:location id="0E345E24D06D19CC8714D7D14A3003F3">
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<mods:url id="5445A94B6685BB6EBA4924BFE077AE21">http://dx.doi.org/10.3897/zitteliana.96.73892</mods:url>
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</mods:location>
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<mods:classification id="0253A9F512E720AB322AE0009435D4BE">journal article</mods:classification>
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<mods:identifier id="6BE7050326BF4DEB4525148C6D3E3B18" type="DOI">http://dx.doi.org/10.3897/zitteliana.96.73892</mods:identifier>
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<mods:identifier id="871A9EF49CDA3331A6A9B53B42F94064" type="Pensoft-Pub">2747-8106-96-1</mods:identifier>
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<mods:identifier id="90B2848490521750DC28157D87D694E2" type="Pensoft-UUID">D5F97D7240455065AD6C43481AAD2D6D</mods:identifier>
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</mods:mods>
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<treatment id="DB2B51B818815CC0AB7C783411FD8E3F" ID-GBIF-Taxon="193856279" LSID="urn:lsid:plazi:treatment:DB2B51B818815CC0AB7C783411FD8E3F" httpUri="http://treatment.plazi.org/id/DB2B51B818815CC0AB7C783411FD8E3F" lastPageNumber="1" pageId="0" pageNumber="1" scope_infraClass="Lower" scope_order="Ammonoidea" scope_subOrder="Ammonitina" scope_superFamily="Haploceratoidea">
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<subSubSection id="E0345BAB045E23330717A92FC7850A9E" pageId="0" pageNumber="1" type="nomenclature">
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<paragraph id="14448FF0EBF4D9E45F3326B084C7316D" pageId="0" pageNumber="1">
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Family
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<taxonomicName id="EDFE95091C81F4BE27A63DD96FB60546" ID-CoL="624YF" LSID="DB2B51B8-1881-5CC0-AB7C-783411FD8E3F" authority="Zittel, 1884" authorityName="Zittel" authorityYear="1884" class="Cephalopoda" family="Haploceratidae" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="" order="Ammonoidea" pageId="0" pageNumber="1" phylum="Mollusca" rank="family">Haploceratidae Zittel, 1884</taxonomicName>
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</paragraph>
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</subSubSection>
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<subSubSection id="203675C9D85F5FEB1A73ECA0D0C84B68" pageId="0" pageNumber="1" type="remarks">
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<paragraph id="BED2A0A55CB3F71832A55A6A58C6C66E" pageId="0" pageNumber="1">Remarks.</paragraph>
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<paragraph id="DD73431A6B229B15633265E14EFE5A7E" pageId="0" pageNumber="1">
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The taxa described under this family are
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<taxonomicName id="5E8F09DB92EBD615F23E2B51E3CB83F6" authorityName="Zittel" authorityYear="1870" family="Haploceratidae" genus="Haploceras" kingdom="Animalia" lsidName="Haploceras" order="Ammonoidea" pageId="0" pageNumber="1" rank="genus">
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<emphasis id="39EF79E9760F1F2D9466D5A194C0BBFA" italics="true" pageId="0" pageNumber="1">Haploceras</emphasis>
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</taxonomicName>
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Zittel, 1870 and
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<taxonomicName id="FA33FD562ACBDAECF94E7E5FDEFB71B4" authorityName="Spath" authorityYear="1924" family="Oppeliidae" genus="Hildoglochiceras" kingdom="Animalia" lsidName="Hildoglochiceras" order="Ammonoidea" pageId="0" pageNumber="1" rank="genus">
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<emphasis id="29FF06EEBE139B5DB67F0287961DE31F" italics="true" pageId="0" pageNumber="1">Hildoglochiceras</emphasis>
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</taxonomicName>
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Spath, 1924. The shell of
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<taxonomicName id="DECDD6478F114D9DCF1ED083A3F67033" authorityName="Zittel" authorityYear="1870" family="Haploceratidae" genus="Haploceras" kingdom="Animalia" lsidName="Haploceras" order="Ammonoidea" pageId="0" pageNumber="1" rank="genus">
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<emphasis id="C71AFB857772DB335CEF2F533006F9BE" italics="true" pageId="0" pageNumber="1">Haploceras</emphasis>
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</taxonomicName>
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shows fine growth lines when epigenized shell is preserved, while inner casts are smooth, with a small but variable umbilicus that initially opens gradually until the last ontogenic stage when it slightly unfolds. Macroconchiate
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<taxonomicName id="5BB3A860DAEAB951808F7B078A75B355" authorityName="Zittel" authorityYear="1870" family="Haploceratidae" genus="Haploceras" kingdom="Animalia" lsidName="Haploceras" order="Ammonoidea" pageId="0" pageNumber="1" rank="genus">
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<emphasis id="98340BCC81572ED8301EAFE205DA1174" italics="true" pageId="0" pageNumber="1">Haploceras</emphasis>
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</taxonomicName>
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show a slightly flexuous peristome, while assumed microconchs are variable in size, incorporate wide and short lappets rather than narrow and pedunculated ones, but can resemble glochiceratins in the absence of peristomal structures. Incomplete specimens of
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<taxonomicName id="1C1AC4119EE122E820BEC58323950BDD" authorityName="Zittel" authorityYear="1870" family="Haploceratidae" genus="Haploceras" kingdom="Animalia" lsidName="Haploceras" order="Ammonoidea" pageId="0" pageNumber="1" rank="genus">
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<emphasis id="C26D73673500A74D4C8092E2370AE1B7" italics="true" pageId="0" pageNumber="1">Haploceras</emphasis>
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</taxonomicName>
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make species-level interpretations difficult.
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</paragraph>
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<paragraph id="8DB212A23EE2CF2E2820FD5C70222A3A" pageId="0" pageNumber="1">
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Reports of the genus
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<taxonomicName id="6FEFF7233453B16FC097636B6F62896D" authorityName="Zittel" authorityYear="1870" family="Haploceratidae" genus="Haploceras" kingdom="Animalia" lsidName="Haploceras" order="Ammonoidea" pageId="0" pageNumber="1" rank="genus">
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<emphasis id="CE93F7E53AB9DE455615518360A757BE" italics="true" pageId="0" pageNumber="1">Haploceras</emphasis>
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</taxonomicName>
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have been variably interpreted before the mid-twentieth century when this genus was commonly applied to Kimmeridgian and Lower Tithonian glochiceratins elsewhere in the world (e.g.,
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<bibRefCitation id="173646A888A477F52F669D0AEBC28334" author="Ziegler, B" journalOrPublisher="Palaeontographica A" pageId="0" pageNumber="1" pagination="93 - 164" refId="B157" refString="Ziegler, B, 1958. Monographie der Ammonitengattung Glochiceras im Epikontinentalen Weissjura Mitteleuropas. Palaeontographica A 110: 93 - 164" title="Monographie der Ammonitengattung Glochiceras im Epikontinentalen Weissjura Mitteleuropas." volume="110" year="1958">Ziegler 1958</bibRefCitation>
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), while the present knowledge about microconchiates is inconclusive. Across the Trans-Erythraean Trough,
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<taxonomicName id="FC3AC6478BFA3900BC764690EE59D974" authorityName="Zittel" authorityYear="1870" family="Haploceratidae" genus="Haploceras" kingdom="Animalia" lsidName="Haploceras" order="Ammonoidea" pageId="0" pageNumber="1" rank="genus">
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<emphasis id="BD136A96F5107B3051E82AD2AF518516" italics="true" pageId="0" pageNumber="1">Haploceras</emphasis>
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</taxonomicName>
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has been more frequently reported from the northern and eastern margins than from western ones, although it is a rare genus across the Himalayas (from
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<bibRefCitation id="AB2777014BC7B0036E5C3AB631712555" author="Uhlig, V" journalOrPublisher="Colloque sur la limite Jurassique-Cretacee, Lyon, Neuchatel" pageId="0" pageNumber="1" refId="B142" refString="Uhlig, V, 1903. The Fauna of the Spiti Shales. Memoir Geological Survey lndia, Palaeontologica Indica, Calcutta ser. 15, 4(1): 1-132." title="The Fauna of the Spiti Shales. Memoir Geological Survey lndia, Palaeontologica Indica, Calcutta ser. 15, 4 (1): 1 - 132." year="1903">Uhlig 1903</bibRefCitation>
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to
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<bibRefCitation id="E9F00614136CB9711B45B8EBC4CB02EE" author="Enay, R" journalOrPublisher="Documents des Laboratoires de Geologie Lyon" pageId="0" pageNumber="1" pagination="1 - 246" refId="B47" refString="Enay, R, 2009. Les faunes d'ammonites de l'Oxfordien au Tithonien et la biostratigraphie des Spiti-Shales (Callovien superieur-Tithonien) de Thakkhola, Nepal Central. Documents des Laboratoires de Geologie Lyon 166: 1 - 246" title="Les faunes d'ammonites de l'Oxfordien au Tithonien et la biostratigraphie des Spiti-Shales (Callovien superieur-Tithonien) de Thakkhola, Nepal Central." volume="166" year="2009">
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<normalizedToken id="58FCBF23CBCD3A8720D4FEB957D969BB" originalValue="Énay">Enay</normalizedToken>
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2009
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</bibRefCitation>
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). Southwards across eastern margins,
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<taxonomicName id="441367E50E6A07DBFCB2B24F46A1C96E" authorityName="Zittel" authorityYear="1870" family="Haploceratidae" genus="Haploceras" kingdom="Animalia" lsidName="Haploceras" order="Ammonoidea" pageId="0" pageNumber="1" rank="genus">
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<emphasis id="0230EE13280377DD1917C8A986E88FA9" italics="true" pageId="0" pageNumber="1">Haploceras</emphasis>
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</taxonomicName>
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has been reported from southern Pakistan to Madagascar throughout the twentieth century (e.g.,
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<bibRefCitation id="40E34B7DDA2C5A6AD564EF728EF6FC83" author="Lemoine, P" journalOrPublisher="Zitteliana" pageId="0" pageNumber="1" refId="B98" refString="Lemoine, P, 1910-1911. Ammonites du Jurassique superieur du cercle d'Analalava (Madagascar). Annales de Paleontologie, Paris 5: 137-168 (1910); 6: 45-64 (1911)." title="Ammonites du Jurassique superieur du cercle d'Analalava (Madagascar). Annales de Paleontologie, Paris 5: 137 - 168 (1910); 6: 45 - 64 (1911)." year="1910 - 1911">Lemoine 1910</bibRefCitation>
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;
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<bibRefCitation id="C75F19D24F3C93282F6FC7AB5F2B8C7D" author="Collignon, M" journalOrPublisher="Rivista Italiana di Paleontologia e Stratigrafia" pageId="0" pageNumber="1" refId="B30" refString="Collignon, M, 1960. Atlas des fossiles caracteristiques de Madagascar. 6 (Tithonique). Republique malgache, Service geologique, Tananarive, pl. 134-175." title="Atlas des fossiles caracteristiques de Madagascar. 6 (Tithonique). Republique malgache, Service geologique, Tananarive, pl. 134 - 175." year="1960">Collignon 1960</bibRefCitation>
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;
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<bibRefCitation id="34D027CD6653DBAFB7D6EB1569751302" DOI="https://doi.org/10.1016/S0016-6995(94)80137-1" author="Fatmi, AN" journalOrPublisher="Symposium volume III, Geological Survey of Denmark, Copenhagen" pageId="0" pageNumber="1" refId="B56" refString="Fatmi, AN, Zeiss, A, 1994. https://doi.org/10.1016/S0016-6995(94)80137-1" url="https://doi.org/10.1016/S0016-6995(94)80137-1" year="1994">Fatmi and Zeiss 1994</bibRefCitation>
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). In contrast, across western margins,
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<taxonomicName id="02C84C933F2161695D77A5D671F27832" authorityName="Zittel" authorityYear="1870" family="Haploceratidae" genus="Haploceras" kingdom="Animalia" lsidName="Haploceras" order="Ammonoidea" pageId="0" pageNumber="1" rank="genus">
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<emphasis id="3BD3FA41A569CFC4B490A4C3EE617033" italics="true" pageId="0" pageNumber="1">Haploceras</emphasis>
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</taxonomicName>
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was only registered from southern Yemen (
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<bibRefCitation id="5239CEC3C128BCAEF975508646E58745" author="Howarth, MK" journalOrPublisher="Bulletin of the Natural History Museum, Geology Series" pageId="0" pageNumber="1" pagination="1 - 32" refId="B71" refString="Howarth, MK, Morris, NJ, 1998. The Jurassic and Lower Cretaceous of Wadi Hajar, southern Yemen. Bulletin of the Natural History Museum, Geology Series 54 (1): 1 - 32" title="The Jurassic and Lower Cretaceous of Wadi Hajar, southern Yemen." volume="54" year="1998">Howarth and Morris 1998</bibRefCitation>
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) and Tanzania (from
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<bibRefCitation id="8D1BB93DD1E1F032944D82F870051E81" author="Zwierzycki, J" journalOrPublisher="Palaeontographica Supplement" pageId="0" pageNumber="1" refId="B161" refString="Zwierzycki, J, 1914. Die Cephalopodenfauna der Tendaguruschichten in Deutsch-Ostafrika. Archiv fuer Biontologie Band 3, Heft 4: 8-96." title="Die Cephalopodenfauna der Tendaguruschichten in Deutsch-Ostafrika. Archiv fuer Biontologie Band 3, Heft 4: 8 - 96." year="1914">Zwierczyki 1914</bibRefCitation>
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to
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<bibRefCitation id="8805AEE0CB06B0A189B26A948731918A" DOI="https://doi.org/10.1002/mmng.200900004" author="Bussert, R" journalOrPublisher="Fossil Record" pageId="0" pageNumber="1" pagination="141 - 174" refId="B23" refString="Bussert, R, Heinrich, WD, Aberhan, M, 2009. The Tendaguru Formation (Late Jurassic to Early Cretaceous, southern Tanzania): definition, palaeoenvironments, and sequence stratigraphy. Fossil Record 12 (2): 141 - 174, DOI: https://doi.org/10.1002/mmng.200900004" title="The Tendaguru Formation (Late Jurassic to Early Cretaceous, southern Tanzania): definition, palaeoenvironments, and sequence stratigraphy." url="https://doi.org/10.1002/mmng.200900004" volume="12" year="2009">Bussert et al. 2009</bibRefCitation>
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), being absent or very rare in between.
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</paragraph>
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<paragraph id="0C5DB71840EA283376E89599CED00458" pageId="0" pageNumber="1">
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<taxonomicName id="FD41777DF12343C4A94E15D8013495B8" baseAuthorityName="Oppel" baseAuthorityYear="1870" family="Haploceratidae" genus="Haploceras" kingdom="Animalia" lsidName="Haploceras elimatum" order="Ammonoidea" pageId="0" pageNumber="1" rank="species" species="elimatum">
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<emphasis id="276E7A2F9A3738A49AF6A5AD18472876" italics="true" pageId="0" pageNumber="1">Haploceras elimatum</emphasis>
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</taxonomicName>
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(Oppel, 1965) and allies represent the morphological group more widespread and have been commonly reported throughout epicontinental areas in the Trans-Erythraean Trough.
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<taxonomicName id="DA958C50BF9001CC82C4D050A2269CC9" baseAuthorityName="Oppel" baseAuthorityYear="1870" family="Haploceratidae" genus="Haploceras" kingdom="Animalia" lsidName="Haploceras elimatum" order="Ammonoidea" pageId="0" pageNumber="1" rank="species" species="elimatum">
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<emphasis id="CD1D32D35B55658AE5B3C266EA4F20FF" italics="true" pageId="0" pageNumber="1">Haploceras elimatum</emphasis>
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</taxonomicName>
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(Oppel, 1965) and
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<taxonomicName id="1B1F5A54614A7D42604456B42338E733" baseAuthorityName="Zeuschner" baseAuthorityYear="1846" family="Haploceratidae" genus="Haploceras" kingdom="Animalia" lsidName="Haploceras staszycii" order="Ammonoidea" pageId="0" pageNumber="1" rank="species" species="staszycii">
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|
<emphasis id="14666E6E1AD060F7427F4D1E00A78809" italics="true" pageId="0" pageNumber="1">Haploceras staszycii</emphasis>
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|
</taxonomicName>
|
|
(Zeuschner, 1846) have commonly been recognized as close species, difficult to separate, for instance by
|
|
<bibRefCitation id="6EC70A5DDE6F709376327D950E87D70D" author="Rod, E" journalOrPublisher="The Journal of Geology" pageId="0" pageNumber="1" refId="B123" refString="Rod, E, 1937. Stratigraphie des Malm der Graustock-Hutstock-Gruppe (Melchtal, Kanton Obwalden), Dissertation, Bern (Staempfli)." title="Stratigraphie des Malm der Graustock-Hutstock-Gruppe (Melchtal, Kanton Obwalden), Dissertation, Bern (Staempfli)." year="1937">Rod (1937)</bibRefCitation>
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|
and by (
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|
<bibRefCitation id="97C83C534A732171B59317C716C6EAD0" author="Hoelder, H" journalOrPublisher="Neues Jahrbuch fuer Geologie und Palaeontologie, Abhandlungen" pageId="0" pageNumber="1" pagination="150 - 214" refId="B69" refString="Hoelder, H, Ziegler, B, 1959. Stratigraphische und faunistische Beziehungen im Weissen Jura (Kimmeridgium) zwischen Sueddeutschland und Ardeche. Neues Jahrbuch fuer Geologie und Palaeontologie, Abhandlungen 108 (2): 150 - 214" title="Stratigraphische und faunistische Beziehungen im Weissen Jura (Kimmeridgium) zwischen Sueddeutschland und Ardeche." volume="108" year="1959">
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|
<normalizedToken id="90C4703CFCD941BE65C652F8B1533E9A" originalValue="Hölder">Hoelder</normalizedToken>
|
|
and Ziegler 1959
|
|
</bibRefCitation>
|
|
), even as representing a single species (
|
|
<bibRefCitation id="E9778A7F3BA00D4979955FE74C19F452" author="Rod, E" journalOrPublisher="Eclogae geologicae Helvetiae" pageId="0" pageNumber="1" pagination="177 - 198" refId="B124" refString="Rod, E, 1946. Ueber ein Fossillager im oberen Malm der Melchtaleralpen. Eclogae geologicae Helvetiae 39: 177 - 198" title="Ueber ein Fossillager im oberen Malm der Melchtaleralpen." volume="39" year="1946">Rod 1946</bibRefCitation>
|
|
). They represent a dimorphic pair (
|
|
<bibRefCitation id="C29319ECB589F246E9810900DFFDFF9F" author="Barthel, KW" journalOrPublisher="Abhandlungen der Bayerischen Akademie der Wissenschaften Mathematisch-Naturwissenschaftliche Klasse, Neue Folge, Heft" pageId="0" pageNumber="1" pagination="5 - 30" refId="B8" refString="Barthel, KW, 1962. Zur Ammonitenfauna und Stratigraphie der Neuburger Bankkalke. Abhandlungen der Bayerischen Akademie der Wissenschaften Mathematisch-Naturwissenschaftliche Klasse, Neue Folge, Heft 105: 5 - 30" title="Zur Ammonitenfauna und Stratigraphie der Neuburger Bankkalke." volume="105" year="1962">Barthel 1962</bibRefCitation>
|
|
). The macroconch embraces all but one Tithonian haploceratin species with polymorphic microconchs (
|
|
<bibRefCitation id="13053F3AE3684388EB3668A2C4559067" author="Enay, R" journalOrPublisher="Journal of Asian Sciences" pageId="0" pageNumber="1" refId="B50" refString="Enay, R, Cecca, F, 1986. Structure et evolution des populations tithoniques du genre d'ammonites tethysien Haploceras Zittel, 1868. In: Comitato Centenario Raffaele Piccinini, Pallini G (Eds) Fossili, Evolucione, Ambiente, Atti I Convegno Pergola, 33-53." title="Structure et evolution des populations tithoniques du genre d'ammonites tethysien Haploceras Zittel, 1868. In: Comitato Centenario Raffaele Piccinini, Pallini G (Eds) Fossili, Evolucione, Ambiente, Atti I Convegno Pergola, 33 - 53." year="1986">
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|
<normalizedToken id="284F0D3E3391B4966E58F7935C0E7CDB" originalValue="Énay">Enay</normalizedToken>
|
|
and Cecca 1986
|
|
</bibRefCitation>
|
|
). According to the information available, the latter is a rather speculative proposal.
|
|
<bibRefCitation id="24818B27CC63AFAB5B728EB9B80406A8" author="Zeiss, A" journalOrPublisher="Neue Denkschriften des Naturhistorischen Museums in Wien, 6: Band, Verlag Ferdinand Berger & Soehne, Wien-Horn" pageId="0" pageNumber="1" refId="B154" refString="Zeiss, A, 2001. Die Ammonitenfauna der Tithonklippen von Ernstbrunn, Niederoesterreich. Neue Denkschriften des Naturhistorischen Museums in Wien, 6: Band, Verlag Ferdinand Berger & Soehne, Wien-Horn" title="Die Ammonitenfauna der Tithonklippen von Ernstbrunn, Niederoesterreich." year="2001">Zeiss (2001)</bibRefCitation>
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|
highlighted the existing options for interpreting dimorphism in haploceratins, and treated the morphologically close species
|
|
<taxonomicName id="F2A07485A4199BA41BC7857A92D52584" baseAuthorityName="Oppel" baseAuthorityYear="1870" family="Haploceratidae" genus="Haploceras" kingdom="Animalia" lsidName="Haploceras elimatum" order="Ammonoidea" pageId="0" pageNumber="1" rank="species" species="elimatum">
|
|
<emphasis id="544FA35740D8277795927E743C2223FB" italics="true" pageId="0" pageNumber="1">Haploceras elimatum</emphasis>
|
|
</taxonomicName>
|
|
and
|
|
<taxonomicName id="84968E8023B96BC16C06E6B5372C302C" baseAuthorityName="Zeuschner" baseAuthorityYear="1846" family="Haploceratidae" genus="Haploceras" kingdom="Animalia" lsidName="Haploceras staszycii" order="Ammonoidea" pageId="0" pageNumber="1" rank="species" species="staszycii">
|
|
<emphasis id="9071DB57F772326F78432AC1FACBA5A2" italics="true" pageId="0" pageNumber="1">Haploceras staszycii</emphasis>
|
|
</taxonomicName>
|
|
as separate units only for convenience. Based on all the above mentioned, these two morphospecies are here interpreted as conspecific and referred to as
|
|
<taxonomicName id="43067CABBA7B8E7A43308FD0EF1D9DFD" baseAuthorityName="Zeuschner" baseAuthorityYear="1846" family="Haploceratidae" genus="Haploceras" kingdom="Animalia" lsidName="Haploceras staszycii" order="Ammonoidea" pageId="0" pageNumber="1" rank="species" species="staszycii">
|
|
<emphasis id="E2A5EE2E39F52704EFFF03DC61B29728" italics="true" pageId="0" pageNumber="1">Haploceras staszycii</emphasis>
|
|
</taxonomicName>
|
|
by priority, with reference to the closest nominal morphological species reported from the Trans-Erythraean Trough.
|
|
</paragraph>
|
|
<paragraph id="4E8E486335A5687A90723DF0EC9BE02F" pageId="0" pageNumber="1">
|
|
<taxonomicName id="DE0DF14E444771D39933BFE86D008740" authorityName="Spath" authorityYear="1924" family="Oppeliidae" genus="Hildoglochiceras" kingdom="Animalia" lsidName="Hildoglochiceras" order="Ammonoidea" pageId="0" pageNumber="1" rank="genus">
|
|
<emphasis id="6C82235EE5501582A454023BAEF8344B" italics="true" pageId="0" pageNumber="1">Hildoglochiceras</emphasis>
|
|
</taxonomicName>
|
|
is commonly more evolute, characterized by a median lateral groove and, consequently, with an acute-oval to oval whorl-section, venter of variable width and height, a lateral sulcus above the lower one-third of the flanks, a variable shell-size for the beginning of ribbing, and more or less ornamented outer whorls. In the present collection, we recognise two groups within
|
|
<taxonomicName id="9E42DCD9FBC90A96D7E74842629AC2A8" authorityName="Spath" authorityYear="1924" family="Oppeliidae" genus="Hildoglochiceras" kingdom="Animalia" lsidName="Hildoglochiceras" order="Ammonoidea" pageId="0" pageNumber="1" rank="genus">
|
|
<emphasis id="BE150B74B8F8CA78A6A286873589652C" italics="true" pageId="0" pageNumber="1">Hildoglochiceras</emphasis>
|
|
</taxonomicName>
|
|
; one interpreted as microconch and other as the corresponding macroconch. These two morphs have been separated on the basis of shell size and the diameter of the umbilicus. The macroconch shows a subrectangular to oval whorl section. See previous chapters for a revision of reports of
|
|
<taxonomicName id="25D0CAFB471977F8F9FC31CC85D72B7C" authorityName="Spath" authorityYear="1924" family="Oppeliidae" genus="Hildoglochiceras" kingdom="Animalia" lsidName="Hildoglochiceras" order="Ammonoidea" pageId="0" pageNumber="1" rank="genus">
|
|
<emphasis id="A2997B6AC28AD1257CE7E658E8304BDF" italics="true" pageId="0" pageNumber="1">Hildoglochiceras</emphasis>
|
|
</taxonomicName>
|
|
across the Trans-Erythraean Trough.
|
|
</paragraph>
|
|
<paragraph id="7C7584D5EB667501A1B369F8C7A3EADD" pageId="0" pageNumber="1">
|
|
Another comparable genus to inner whorls of
|
|
<taxonomicName id="266F82CD70593B3FDA5C30CCFC54EE72" authorityName="Zittel" authorityYear="1870" family="Haploceratidae" genus="Haploceras" kingdom="Animalia" lsidName="Haploceras" order="Ammonoidea" pageId="0" pageNumber="1" rank="genus">
|
|
<emphasis id="4D74B5FAD80FE27633C74CA331829E86" italics="true" pageId="0" pageNumber="1">Haploceras</emphasis>
|
|
</taxonomicName>
|
|
and
|
|
<taxonomicName id="80E20548A2DB20361FFF6DDBF82952B6" authorityName="Spath" authorityYear="1924" family="Oppeliidae" genus="Hildoglochiceras" kingdom="Animalia" lsidName="Hildoglochiceras" order="Ammonoidea" pageId="0" pageNumber="1" rank="genus">
|
|
<emphasis id="3CD54304ADFEA4359F56A4EFFFF0CAB3" italics="true" pageId="0" pageNumber="1">Hildoglochiceras</emphasis>
|
|
</taxonomicName>
|
|
is
|
|
<taxonomicName id="AB0361E396B81DD3B4517536EF60A609" authorityName="Hyatt" authorityYear="1900" family="Haploceratidae" genus="Glochiceras" kingdom="Animalia" lsidName="Glochiceras" order="Ammonoidea" pageId="0" pageNumber="1" rank="genus">
|
|
<emphasis id="81014B31BA0A01F43FE6B428C86DD55D" italics="true" pageId="0" pageNumber="1">Glochiceras</emphasis>
|
|
</taxonomicName>
|
|
Hyatt, 1900, the shell of which is smaller and shows a variable whorl section, sculpture and peristomal structure. The umbilicus of
|
|
<taxonomicName id="CA4A43EC394C25F740EBE81B8C2198F4" authorityName="Hyatt" authorityYear="1900" family="Haploceratidae" genus="Glochiceras" kingdom="Animalia" lsidName="Glochiceras" order="Ammonoidea" pageId="0" pageNumber="1" rank="genus">
|
|
<emphasis id="050B27A80D2D9F3D9B104330F9F37ADA" italics="true" pageId="0" pageNumber="1">Glochiceras</emphasis>
|
|
</taxonomicName>
|
|
opens suddenly at the end of the growth. In addition, some species of
|
|
<taxonomicName id="039DDABFC581C66279A6EF7166DDB469" authorityName="Hyatt" authorityYear="1900" family="Haploceratidae" genus="Glochiceras" kingdom="Animalia" lsidName="Glochiceras" order="Ammonoidea" pageId="0" pageNumber="1" rank="genus">
|
|
<emphasis id="57AD4EAF6A79E9907157F045977F3B67" italics="true" pageId="0" pageNumber="1">Glochiceras</emphasis>
|
|
</taxonomicName>
|
|
are also characterised by a median lateral groove like in
|
|
<taxonomicName id="1217BAF9C4BF34D6426025D110D07780" authorityName="Spath" authorityYear="1924" family="Oppeliidae" genus="Hildoglochiceras" kingdom="Animalia" lsidName="Hildoglochiceras" order="Ammonoidea" pageId="0" pageNumber="1" rank="genus">
|
|
<emphasis id="B3EB198A354AAA5D9F00FA35CB9E1CB9" italics="true" pageId="0" pageNumber="1">Hildoglochiceras</emphasis>
|
|
</taxonomicName>
|
|
. But small size, a rather discoid shell with narrow venter, the type of peristome, and the biostratigraphic range of typical
|
|
<taxonomicName id="EFABF154D8FBEC2F52789418CD700C63" authorityName="Hyatt" authorityYear="1900" family="Haploceratidae" genus="Glochiceras" kingdom="Animalia" lsidName="Glochiceras" order="Ammonoidea" pageId="0" pageNumber="1" rank="genus">
|
|
<emphasis id="C61BED6D085EBBFDA56C38577226D8A9" italics="true" pageId="0" pageNumber="1">Glochiceras</emphasis>
|
|
</taxonomicName>
|
|
, i.e. from Oxfordian to Kimmeridgian, with scarce records from the Lower Tithonian (e.g.,
|
|
<bibRefCitation id="21C27BEDD02A820CCC5605321818F9CC" author="Ziegler, B" journalOrPublisher="Palaeontographica A" pageId="0" pageNumber="1" pagination="93 - 164" refId="B157" refString="Ziegler, B, 1958. Monographie der Ammonitengattung Glochiceras im Epikontinentalen Weissjura Mitteleuropas. Palaeontographica A 110: 93 - 164" title="Monographie der Ammonitengattung Glochiceras im Epikontinentalen Weissjura Mitteleuropas." volume="110" year="1958">Ziegler 1958</bibRefCitation>
|
|
;
|
|
<bibRefCitation id="481BD44BF3D6E16D85312B06209927DF" author="Collignon, M" journalOrPublisher="Rivista Italiana di Paleontologia e Stratigrafia" pageId="0" pageNumber="1" refId="B30" refString="Collignon, M, 1960. Atlas des fossiles caracteristiques de Madagascar. 6 (Tithonique). Republique malgache, Service geologique, Tananarive, pl. 134-175." title="Atlas des fossiles caracteristiques de Madagascar. 6 (Tithonique). Republique malgache, Service geologique, Tananarive, pl. 134 - 175." year="1960">Collignon 1960</bibRefCitation>
|
|
;
|
|
<bibRefCitation id="E01CEE148176501796E374256EA4544D" author="Barthel, KW" journalOrPublisher="Abhandlungen der Bayerischen Akademie der Wissenschaften Mathematisch-Naturwissenschaftliche Klasse, Neue Folge, Heft" pageId="0" pageNumber="1" pagination="5 - 30" refId="B8" refString="Barthel, KW, 1962. Zur Ammonitenfauna und Stratigraphie der Neuburger Bankkalke. Abhandlungen der Bayerischen Akademie der Wissenschaften Mathematisch-Naturwissenschaftliche Klasse, Neue Folge, Heft 105: 5 - 30" title="Zur Ammonitenfauna und Stratigraphie der Neuburger Bankkalke." volume="105" year="1962">Barthel 1962</bibRefCitation>
|
|
;
|
|
<bibRefCitation id="D02E61AD07D341C931AD57D6CB2A6703" author="Grigore, D" journalOrPublisher="Stiintele Naturii" pageId="0" pageNumber="1" pagination="29 - 36" refId="B67" refString="Grigore, D, 2019. Glochiceras Hyatt (Oppelidae, Ammonoidea) from the Upper Jurassic deposits of the Hăghimas Mts. (the eastern Carpathians - Romania). Oltenia. Studiisicomunicări. Stiintele Naturii 35 (2): 29 - 36" title="Glochiceras Hyatt (Oppelidae, Ammonoidea) from the Upper Jurassic deposits of the Hăghimas Mts. (the eastern Carpathians - Romania). Oltenia. Studiisicomunicări." volume="35" year="2019">Grigore 2019</bibRefCitation>
|
|
), may be diagnostic. These morphological features persist in the scarce
|
|
<taxonomicName id="6D4FECAD3696754A0A28C8DCC5D0D533" authorityName="Hyatt" authorityYear="1900" family="Haploceratidae" genus="Glochiceras" kingdom="Animalia" lsidName="Glochiceras" order="Ammonoidea" pageId="0" pageNumber="1" rank="genus">
|
|
<emphasis id="09AABC14CC191C31156122D618A16F6F" italics="true" pageId="0" pageNumber="1">Glochiceras</emphasis>
|
|
</taxonomicName>
|
|
reported from the lowermost Tithonian of Europe. Separation of glochiceratins and microconchite haploceratins can be difficult with incomplete specimens lacking the peristome.
|
|
</paragraph>
|
|
<paragraph id="7A797A93C8031A460A263FCAB4ACE1B8" pageId="0" pageNumber="1">
|
|
Among evolute haploceratins with a comparatively wide ventral region,
|
|
<taxonomicName id="97B2D23FF85F11604A63518D3B7356E1" authorityName="Ziegler" authorityYear="1958" genus="Lingulaticeras" lsidName="Lingulaticeras" pageId="0" pageNumber="1" rank="genus">
|
|
<emphasis id="42BEC32C6802ED26CC0104102A2183F6" italics="true" pageId="0" pageNumber="1">Lingulaticeras</emphasis>
|
|
</taxonomicName>
|
|
Ziegler, 1958 and
|
|
<taxonomicName id="195823B666AF4F7194FC5A4B4AA590F9" authorityName="Ziegler" authorityYear="1958" genus="Paralingulaticeras" lsidName="Paralingulaticeras" pageId="0" pageNumber="1" rank="genus">
|
|
<emphasis id="3B1F5B453A62F9728DCF43EB826D42D3" italics="true" pageId="0" pageNumber="1">Paralingulaticeras</emphasis>
|
|
</taxonomicName>
|
|
Ziegler, 1958 are relatively close in shell-type to
|
|
<taxonomicName id="F75B698121B73E75E6B772D25282ED8F" authorityName="Spath" authorityYear="1924" family="Oppeliidae" genus="Hildoglochiceras" kingdom="Animalia" lsidName="Hildoglochiceras" order="Ammonoidea" pageId="0" pageNumber="1" rank="genus">
|
|
<emphasis id="68C884897349AF86881060A41CC1940E" italics="true" pageId="0" pageNumber="1">Hildoglochiceras</emphasis>
|
|
</taxonomicName>
|
|
. Supposed lowermost Tithonian forms of the former are more involute and show a sculptured venter of variable width, while those of the latter develop a latero-ventral tuberculation.
|
|
</paragraph>
|
|
</subSubSection>
|
|
</treatment>
|
|
</document> |