133 lines
16 KiB
XML
133 lines
16 KiB
XML
<document id="750232D21C81E98D07D06F581A46FF65" ID-CLB-Dataset="31875" ID-DOI="10.11646/zootaxa.4329.4.3" ID-GBIF-Dataset="54677545-2000-47a2-92ce-a03d614140d1" ID-ISSN="1175-5326" ID-Zenodo-Dep="1003014" ID-ZooBank="A0552Ffb-Fe2B-4Fad-809A-A1274Ac86Bcc" IM.materialsCitations_approvedBy="felipe" IM.metadata_approvedBy="felipe" IM.tables_requiresApprovalFor="existingObjects,plazi" IM.taxonomicNames_approvedBy="felipe" checkinTime="1507273445534" checkinUser="plazi" docAuthor="Nakrem, Hans Arne" docDate="2017" docId="B5525419D02CFFFBFF7BFBBDFECEF847" docLanguage="en" docName="zootaxa.4329.4.3.pdf" docOrigin="Zootaxa 4329 (4)" docStyle="DocumentStyle:647186512141C8FC8976D5BCC54AEB7D.9:Zootaxa.2013-.journal_article" docStyleId="647186512141C8FC8976D5BCC54AEB7D" docStyleName="Zootaxa.2013-.journal_article" docStyleVersion="9" docTitle="Cretadmete Blagovetshenskiy & Shumilkin 2006" docType="treatment" docVersion="9" lastPageNumber="363" masterDocId="496B2C61D020FFF7FFECFFDFFF9BFFD5" masterDocTitle="Gastropods from the Late Jurassic - Early Cretaceous seep deposits in Spitsbergen, Svalbard" masterLastPageNumber="374" masterPageNumber="351" pageNumber="363" updateTime="1698469356637" updateUser="ExternalLinkService">
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<mods:title id="DE236CDEC5E1197D7D5487AE94165266">Gastropods from the Late Jurassic - Early Cretaceous seep deposits in Spitsbergen, Svalbard</mods:title>
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<mods:namePart id="C1962BCB1884E378618AD51D4189560A">Nakrem, Hans Arne</mods:namePart>
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<mods:title id="1250221151A7E47A6F3E8B6B87FC1CE4">Zootaxa</mods:title>
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<mods:date id="99D4931B4CC7EF1404583304C50C51FE">2017</mods:date>
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<mods:number id="C75DCBEA9253099BE4DF38D05AAED5E2">2017-10-06</mods:number>
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<treatment id="B5525419D02CFFFBFF7BFBBDFECEF847" ID-DOI="http://doi.org/10.5281/zenodo.6009603" ID-GBIF-Taxon="135135475" ID-Zenodo-Dep="6009603" LSID="urn:lsid:plazi:treatment:B5525419D02CFFFBFF7BFBBDFECEF847" httpUri="http://treatment.plazi.org/id/B5525419D02CFFFBFF7BFBBDFECEF847" lastPageNumber="363" pageId="12" pageNumber="363">
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<subSubSection id="75E1B684D02CFFFBFF7BFBBDFEBBFB4B" pageId="12" pageNumber="363" type="nomenclature">
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<paragraph id="3D44E50FD02CFFFBFF7BFBBDFED7FBA8" blockId="12.[151,332,1122,1182]" box="[151,332,1122,1149]" pageId="12" pageNumber="363">
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<heading id="660C5263D02CFFFBFF7BFBBDFED7FBA8" bold="true" box="[151,332,1122,1149]" fontSize="11" level="1" pageId="12" pageNumber="363" reason="1">
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<emphasis id="0F8F391DD02CFFFBFF7BFBBDFED7FBA8" bold="true" box="[151,332,1122,1149]" pageId="12" pageNumber="363">
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<taxonomicName id="FAFB9E8CD02CFFFBFF7BFBBDFEBAFBA9" authorityName="Blagovetshenskiy & Shumilkin" authorityYear="2006" box="[151,289,1122,1148]" class="Gastropoda" family="Cancellariidae" genus="Cretadmete" higherTaxonomySource="GBIF" kingdom="Animalia" order="Neogastropoda" pageId="12" pageNumber="363" phylum="Mollusca" rank="genus">
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<emphasis id="0F8F391DD02CFFFBFF7BFBBDFEBAFBA9" bold="true" box="[151,289,1122,1148]" italics="true" pageId="12" pageNumber="363">Cretadmete</emphasis>
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</taxonomicName>
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sp.
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</emphasis>
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</heading>
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</paragraph>
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<paragraph id="3D44E50FD02CFFFBFF7BFB5AFEBBFB4B" blockId="12.[151,332,1122,1182]" box="[151,288,1157,1182]" pageId="12" pageNumber="363">
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(
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<figureCitation id="A5C0F98AD02CFFFBFF73FB5AFE83FB4B" box="[159,280,1157,1182]" captionStart="FIGURE 8" captionStartId="13.[151,250,588,610]" captionTargetBox="[151,1436,193,567]" captionTargetId="figure@13.[151,1436,193,567]" captionTargetPageId="13" captionText="FIGURE 8. A – C. Cretadmete sp., (PMO 224.762), Seep deposit # 8, Sassenfjorden, Svalbard; Late Tithonian (late Jurassic). D. Gastropoda gen. et sp. indet. (PMO 217.517), Seep deposit # 2, Sassenfjorden, Svalbard; late Berriasian (Early Cretaceous)." httpUri="https://zenodo.org/record/1003028/files/figure.png" pageId="12" pageNumber="363">Fig. 8A–C</figureCitation>
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)
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</paragraph>
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</subSubSection>
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<subSubSection id="75E1B684D02CFFFBFF7BFB12FBD4F9D3" pageId="12" pageNumber="363" type="description">
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<paragraph id="3D44E50FD02CFFFBFF7BFB12FCF7FB36" blockId="12.[151,876,1229,1251]" box="[151,876,1229,1251]" pageId="12" pageNumber="363">
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2015
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<taxonomicName id="FAFB9E8CD02CFFFBFF3CFB12FEFBFB36" authorityName="Gründel" authorityYear="2001" box="[208,352,1229,1251]" class="Gastropoda" family="Maturifusidae" higherTaxonomySource="GBIF" kingdom="Animalia" order="Neogastropoda" pageId="12" pageNumber="363" phylum="Mollusca" rank="family">Maturifusidae</taxonomicName>
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? gen. et sp. indet.;
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<bibRefCitation id="596A98FED02CFFFBFDCFFB12FC83FB36" author="Hryniewicz" box="[547,792,1229,1251]" pageId="12" pageNumber="363" refString="Hryniewicz, K., Nakrem H. A., Hammer, O., Little, C. T. S., Kaim, A., Sandy, M. R. & Hurum, J. H. (2015 a) The palaeoecology of the latest Jurassic - earliest Cretaceous hydrocarbon seep carbonates from Spitsbergen, Svalbard. Lethaia, 58, 353 - 374. https: // doi. org / 10.1111 / let. 12112" type="journal article" year="2015" yearSuffix="a">
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Hryniewicz
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<emphasis id="0F8F391DD02CFFFBFD73FB11FD49FB36" box="[671,722,1229,1251]" italics="true" pageId="12" pageNumber="363">et al.</emphasis>
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2015a
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</bibRefCitation>
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, table 1.
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</paragraph>
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<paragraph id="3D44E50FD02CFFFBFF7BFACFFBD4F9D3" blockId="12.[151,1436,1296,1938]" pageId="12" pageNumber="363">
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<emphasis id="0F8F391DD02CFFFBFF7BFACFFEB2FAFC" bold="true" box="[151,297,1296,1321]" pageId="12" pageNumber="363">Description.</emphasis>
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Protoconch not preserved. Shell small,
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<quantity id="FA0348EAD02CFFFBFD00FACFFCD8FAFD" box="[748,835,1296,1321]" metricMagnitude="-3" metricUnit="m" metricValue="4.5" pageId="12" pageNumber="363" unit="mm" value="4.5">4.5 mm</quantity>
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in height and
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<quantity id="FA0348EAD02CFFFBFC0BFACFFBA5FAFD" box="[999,1086,1296,1321]" metricMagnitude="-3" metricUnit="m" metricValue="5.3" pageId="12" pageNumber="363" unit="mm" value="5.3">5.3 mm</quantity>
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in width, fusiform/turbiniform with two strongly convex whorls preserved. Suture moderately incised. Shell flank ornamented with numerous spiral cords arranged in two orders; each two 1
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<taxonomicName id="FAFB9E8CD02CFFFBFD25FA88FC82FAA1" box="[713,793,1367,1396]" pageId="12" pageNumber="363" rank="subSpecies" subSpecies="order">st order</taxonomicName>
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cords sandwich one weaker 2nd order cord. The spiral ornament is crossed by prosocline axial ridges with no clear knobs and the intersections, which, however, might be slightly undulating in the adapical portion of flank. Transition between flank and base without angulation, but distinct due to disappearance of axial ornamentation and 2nd order spiral cords. Aperture poorly preserved with no apertural elaborations visible. Anterior part of the aperture broken off. No umbilicus.
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</paragraph>
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</subSubSection>
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<subSubSection id="75E1B684D02CFFFBFF2BF9CEFE31F99B" pageId="12" pageNumber="363" type="materials_examined">
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<paragraph id="3D44E50FD02CFFFBFF2BF9CEFE31F99B" blockId="12.[151,1436,1296,1938]" pageId="12" pageNumber="363">
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<emphasis id="0F8F391DD02CFFFBFF2BF9CEFE6DF9FF" bold="true" box="[199,502,1553,1578]" pageId="12" pageNumber="363">Material and occurrence:</emphasis>
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One specimen (PMO 224.762) from seep deposit #8, Sassenfjorden, Svalbard; Late Tithonian, Late Jurassic.
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</paragraph>
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</subSubSection>
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<subSubSection id="75E1B684D02CFFFBFF2BF986FECEF847" pageId="12" pageNumber="363" type="discussion">
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<paragraph id="3D44E50FD02CFFFBFF2BF986FECEF847" blockId="12.[151,1436,1296,1938]" pageId="12" pageNumber="363">
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<emphasis id="0F8F391DD02CFFFBFF2BF986FEA0F9A7" bold="true" box="[199,315,1625,1650]" pageId="12" pageNumber="363">Remarks.</emphasis>
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This juvenile shell is remarkably similar to
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<taxonomicName id="FAFB9E8CD02CFFFBFCD1F986FF49F943" authority="Blagovetshenskiy & Shumilkin, 2006" authorityName="Blagovetshenskiy & Shumilkin" authorityYear="2006" class="Gastropoda" family="Cancellariidae" genus="Cretadmete" higherTaxonomySource="GBIF" kingdom="Animalia" order="Neogastropoda" pageId="12" pageNumber="363" phylum="Mollusca" rank="species" species="neglecta">
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<emphasis id="0F8F391DD02CFFFBFCD1F986FBBCF9A7" box="[829,1063,1625,1650]" italics="true" pageId="12" pageNumber="363">Cretadmete neglecta</emphasis>
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<bibRefCitation id="596A98FED02CFFFBFBDCF986FF49F943" author="Blagovetshenskiy" pageId="12" pageNumber="363" refString="Blagovetshenskiy, I. V. & Shumilkin, I. A. (2006) Gastropod mollusks from the Hauterivian of Ulyanovsk (Volga Region): 2. Genera Khetella Beisel, 1977 and Cretadmete gen. nov. Paleontological Journal, 40, 143 - 149. https: // doi. org / 10.1134 / S 0031030106020043" type="journal article" year="2006">Blagovetshenskiy & Shumilkin, 2006</bibRefCitation>
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</taxonomicName>
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, from the Upper Hauterivian (Early Cretaceous) of the
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<collectingRegion id="FF3F2BEDD02CFFFBFCB6F9A2FC48F943" box="[858,979,1661,1686]" country="Russia" name="Ul'yanovsk" pageId="12" pageNumber="363">Ulyanovsk</collectingRegion>
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Region in
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<collectingCountry id="45ECA59FD02CFFFBFBB5F9A2FB3CF943" box="[1113,1191,1661,1686]" name="Russia" pageId="12" pageNumber="363">Russia</collectingCountry>
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.
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<bibRefCitation id="596A98FED02CFFFBFB59F9A2FEC5F96F" author="Blagovetshenskiy" pageId="12" pageNumber="363" refString="Blagovetshenskiy, I. V. & Shumilkin, I. A. (2006) Gastropod mollusks from the Hauterivian of Ulyanovsk (Volga Region): 2. Genera Khetella Beisel, 1977 and Cretadmete gen. nov. Paleontological Journal, 40, 143 - 149. https: // doi. org / 10.1134 / S 0031030106020043" type="journal article" year="2006">Blagovetshenskiy & Shumilkin (2006)</bibRefCitation>
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included six species in
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<taxonomicName id="FAFB9E8CD02CFFFBFD80F97EFD75F96F" authorityName="Blagovetshenskiy & Shumilkin" authorityYear="2006" box="[620,750,1697,1722]" class="Gastropoda" family="Cancellariidae" genus="Cretadmete" higherTaxonomySource="GBIF" kingdom="Animalia" order="Neogastropoda" pageId="12" pageNumber="363" phylum="Mollusca" rank="genus">
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<emphasis id="0F8F391DD02CFFFBFD80F97EFD75F96F" box="[620,750,1697,1722]" italics="true" pageId="12" pageNumber="363">Cretadmete</emphasis>
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</taxonomicName>
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ranging in age from the Oxfordian to the Albian. We refrain from placing our shell into any of these species due to its fragmentary preservation. A similar
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<typeStatus id="E2405BADD02CFFFBFB28F919FB6FF90B" box="[1220,1268,1734,1758]" pageId="12" pageNumber="363">type</typeStatus>
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of teleoconch, but with entirely different cancellate protoconch, has been reported by
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<bibRefCitation id="596A98FED02CFFFBFC25F936FA98F8D7" author="Schroder" box="[969,1283,1769,1794]" pageId="12" pageNumber="363" refString="Schroder, M. (1995) Fruhontogenetische Schalen jurassicher und unterkretazischer Gastropoden aus Norddeutschland und Polen. Palaeontographica, A, 238, 1 - 95." type="journal article" year="1995">Schröder (1995: pl. 7: 3–4)</bibRefCitation>
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in a juvenile shell from the Albian of
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<collectingCountry id="45ECA59FD02CFFFBFE2DF8D1FDB1F8F3" box="[449,554,1806,1830]" name="Germany" pageId="12" pageNumber="363">Germany</collectingCountry>
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, which has been interpreted by
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<bibRefCitation id="596A98FED02CFFFBFC4BF8D2FBD7F8F3" author="Bandel" box="[935,1100,1805,1830]" pageId="12" pageNumber="363" refString="Bandel, K. (1993) Caenogastropoda during Mesozoic times. Scripta Geologica, Special Issue 2, 7 - 56." type="journal article" year="1993">Bandel (1993)</bibRefCitation>
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as a species of
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<taxonomicName id="FAFB9E8CD02CFFFBFAFDF8D0FAF3F8F3" authorityName="Schumacher" authorityYear="1817" box="[1297,1384,1807,1830]" class="Gastropoda" family="Muricidae" genus="Rapana" kingdom="Animalia" order="Neogastropoda" pageId="12" pageNumber="363" phylum="Mollusca" rank="genus">
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<emphasis id="0F8F391DD02CFFFBFAFDF8D0FAF3F8F3" box="[1297,1384,1807,1830]" italics="true" pageId="12" pageNumber="363">Rapana</emphasis>
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</taxonomicName>
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and considered by him to be the oldest record of the tonnoideans.
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<bibRefCitation id="596A98FED02CFFFBFC88F8EEFBA8F89F" author="Wollemann" box="[868,1075,1841,1866]" pageId="12" pageNumber="363" refString="Wollemann, A. (1900) Die Bivalven und Gastropoden des norddeutschen und hollandischen Neocoms. Abhandlungen der Koniglich Preussischen geologischen Landesanstalt, Neue Folge, 31, 1 - 180." type="journal article" year="1900">Wollemann (1900</bibRefCitation>
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,
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<bibRefCitation id="596A98FED02CFFFBFBACF8EDFBE1F89F" author="Wollemann" box="[1088,1146,1842,1866]" pageId="12" pageNumber="363" refString="Wollemann, A. (1907) Die Fauna des mittleren Gaults von Algermissen. Jahrbuch der Koniglich Preussischen geologischen Landesanstalt zu Berlin, 24, 22 - 42." type="journal article" year="1907">1907</bibRefCitation>
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,
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<bibRefCitation id="596A98FED02CFFFBFB65F8EDFB59F89F" author="Wollemann" box="[1161,1218,1842,1866]" pageId="12" pageNumber="363" refString="Wollemann, A. (1909) Die Bivalven und Gastropoden der norddeutschen Gaults (Aptiens und Albiens), Jahrbuch der Koniglich Preussischen geologischen Landesanstalt zu Berlin, 27, 259 - 300." type="journal article" year="1909">1909</bibRefCitation>
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) reported from the same strata several species similar to
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<taxonomicName id="FAFB9E8CD02CFFFBFDBEF88AFD4FF8BB" authorityName="Blagovetshenskiy & Shumilkin" authorityYear="2006" box="[594,724,1877,1902]" class="Gastropoda" family="Cancellariidae" genus="Cretadmete" higherTaxonomySource="GBIF" kingdom="Animalia" order="Neogastropoda" pageId="12" pageNumber="363" phylum="Mollusca" rank="genus">
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<emphasis id="0F8F391DD02CFFFBFDBEF88AFD4FF8BB" box="[594,724,1877,1902]" italics="true" pageId="12" pageNumber="363">Cretadmete</emphasis>
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</taxonomicName>
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(but without protoconchs); this entire group of taxa requires thorough review.
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</paragraph>
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</subSubSection>
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</treatment>
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</document> |