135 lines
18 KiB
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135 lines
18 KiB
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<document id="11F0863BA1F3276D3F42A814322EB109" ID-CLB-Dataset="26049" ID-DOI="10.11646/zootaxa.4654.1.1" ID-GBIF-Dataset="9ce1d103-9234-4fbe-9544-f1c294bb8783" ID-ISSN="1175-5326" ID-Zenodo-Dep="3365803" ID-ZooBank="CFD82CC0-3110-472E-972B-7ADC0C523A04" IM.materialsCitations_approvedBy="felipe" IM.metadata_approvedBy="felipe" IM.tables_requiresApprovalFor="existingObjects,plazi" IM.taxonomicNames_approvedBy="felipe" checkinTime="1565592061838" checkinUser="plazi" docAuthor="Hansen, Thomas" docDate="2019" docId="BF18F633A977FF9D2B9CC64BFEB4FBF1" docLanguage="en" docName="zootaxa.4654.1.1.pdf" docOrigin="Zootaxa 4654 (1)" docStyle="DocumentStyle:5EBBA59367AD13919D70D935FA04F6A3.14:Zootaxa.2013-.monograph" docStyleId="5EBBA59367AD13919D70D935FA04F6A3" docStyleName="Zootaxa.2013-.monograph" docStyleVersion="14" docTitle="Eumetula Thiele 1912" docType="treatment" docVersion="20" lastPageNumber="121" masterDocId="43218E4BA900FFE52B0BC14DFFA9FFE3" masterDocTitle="Gastropods from the Cretaceous-Palaeogene boundary in Denmark" masterLastPageNumber="196" masterPageNumber="1" pageNumber="120" updateTime="1698750564626" updateUser="ExternalLinkService">
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<mods:title id="A95EE5CC53FDB21D0C37525E3ABF894A">Gastropods from the Cretaceous-Palaeogene boundary in Denmark</mods:title>
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<mods:namePart id="A695775B429B2FECD2062F89F685B096">Hansen, Thomas</mods:namePart>
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<mods:typeOfResource id="5A83FF0A5163F691B4FACD10A449041F">text</mods:typeOfResource>
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<mods:title id="159E68BC9E9A906D166BBD4890C10764">Zootaxa</mods:title>
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<mods:date id="61FE4174BDCA1ED6075394419A2C391D">2019</mods:date>
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<mods:number id="1DE71AB0200169A912DDD0DBF93BA1A0">2019-08-12</mods:number>
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<mods:number id="3EB7C7C37208E1CA9D43BD29BBFE38F6">4654</mods:number>
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<mods:classification id="F9DD79E42A1C8A00D7D0E1BE7855532E">journal article</mods:classification>
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<mods:identifier id="47D07B2B4447DA7CBA43AEA94572039D" type="CLB-Dataset">26049</mods:identifier>
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<mods:identifier id="6AB974CD6E4B19D63D6BAB5AD34F2B58" type="DOI">10.11646/zootaxa.4654.1.1</mods:identifier>
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</mods:mods>
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<treatment id="BF18F633A977FF9D2B9CC64BFEB4FBF1" ID-GBIF-Taxon="159074730" LSID="urn:lsid:plazi:treatment:BF18F633A977FF9D2B9CC64BFEB4FBF1" httpUri="http://treatment.plazi.org/id/BF18F633A977FF9D2B9CC64BFEB4FBF1" lastPageId="120" lastPageNumber="121" pageId="119" pageNumber="120">
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<subSubSection id="7FAB14AEA977FF922B9CC64BFE90F8C2" box="[151,313,1798,1825]" pageId="119" pageNumber="120" type="nomenclature">
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<paragraph id="370E4725A977FF922B9CC64BFE90F8C2" blockId="119.[151,313,1798,1860]" box="[151,313,1798,1825]" pageId="119" pageNumber="120">
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<heading id="6C46F049A977FF922B9CC64BFE90F8C2" bold="true" box="[151,313,1798,1825]" fontSize="11" level="1" pageId="119" pageNumber="120" reason="1">
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<emphasis id="05C59B37A977FF922B9CC64BFE90F8C2" bold="true" box="[151,313,1798,1825]" pageId="119" pageNumber="120">
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<taxonomicName id="F0B13CA6A977FF922B9CC64BFEA7F8C2" ID-CoL="7NZJ8" authorityName="Thiele" authorityYear="1912" box="[151,270,1798,1825]" class="Gastropoda" family="Newtoniellidae" genus="Eumetula" kingdom="Animalia" pageId="119" pageNumber="120" phylum="Mollusca" rank="genus">
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<emphasis id="05C59B37A977FF922B9CC64BFEA7F8C2" bold="true" box="[151,270,1798,1825]" italics="true" pageId="119" pageNumber="120">Eumetula</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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</subSubSection>
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<subSubSection id="7FAB14AEA977FF922B9CC667FF50F8A7" box="[151,249,1834,1860]" pageId="119" pageNumber="120" type="description">
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<paragraph id="370E4725A977FF922B9CC667FF50F8A7" blockId="119.[151,313,1798,1860]" box="[151,249,1834,1860]" pageId="119" pageNumber="120">
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<figureCitation id="AF8A5BA0A977FF922B9CC667FF50F8A7" box="[151,249,1834,1860]" captionStart="FIGURE 28" captionStartId="116.[151,250,188,213]" captionTargetId="figure@115.[151,1435,179,1918]" captionTargetPageId="115" captionText="FIGURE 28. A. Thereitis carlsbergi n. sp., Protoconch of paratype MGUH 33205.Width of protoconch 0.4 mm. B–D. Thereitis cretacea n. sp. B. Holotype protoconch MGUH 33206. Width 0.4 mm. C. Silicone cast of paratype MGUH 33207. Width 0.9 mm. D. Silicone cast of paratype MGUH 33208. Width 1.1 mm. E. Thereitis sp., Silicone cast of MGUH 33209. Width 0.4 mm. F–I. Cerithiella moltkianum (Ravn, 1902). F–H. Silicone cast of MGUH 33210. Width of teleoconch 4.6 mm. Height of protoconch 1.0 mm. I. Silicone cast of MGUH 33211.Width 9.2 mm. J–O. Cerithiella selandica n. sp. J–K. Silicone cast of holotype MGUH 33212. Teleoconch width 2.6 mm. Preserved protoconch width 0.5 mm. L–M. Silicone cast of paratype MGUH 33213. Height 31 mm. N. Paratype protoconch MGUH 33214. Width 0.7 mm. O. Silicone cast of paratype MGUH 33215. Width 2.6 mm. P–Q. Cerithiella sp. P. Silicone cast of MGUH 33216. Width 6.7 mm. Q. Silicone cast of MGUH 33217. Width 5.1 mm. R. Eumetula sp., Silicone cast of MGUH 33218. Width 0.9 mm. S. Trituba obliquecostulata (Kaunhowen, 1898). Silicone cast of MGUH 33219. Width 1.2 mm. T–V. Vatopsis heinbergi n. sp. T. Silicone cast of holotype MGUH 33220. Width 1.2 mm. U. Silicone cast of paratype MGUH 33221. Width 3.1 mm. V. Silicone cast of paratype MGUH 33222. Width 4.0 mm. W. Vatopsis sp., Silicone cast of MGUH 33223. Width 2.5 mm. X–Y. Ageria skeldervigensis n. sp. X. Silicone cast of paratype MGUH 33224. Height 4.1 mm. Y. Silicone cast of paratype MGUH 33225. Width 7.4 mm." figureDoi="http://doi.org/10.5281/zenodo.3442112" httpUri="https://zenodo.org/record/3442112/files/figure.png" pageId="119" pageNumber="120">Fig. 28R</figureCitation>
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</paragraph>
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</subSubSection>
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<subSubSection id="7FAB14AEA977FF9D2B9CC63CFEB4FBF1" lastPageId="120" lastPageNumber="121" pageId="119" pageNumber="120" type="materials_examined">
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<paragraph id="370E4725A977FF922B9CC63CFDC6F86F" blockId="119.[151,1436,1905,2041]" box="[151,623,1905,1932]" pageId="119" pageNumber="120">
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<emphasis id="05C59B37A977FF922B9CC63CFEAFF86F" bold="true" box="[151,262,1905,1932]" pageId="119" pageNumber="120">Material.</emphasis>
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A single mould,
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<collectionCode id="51A0DFE0A977FF922ACEC63FFDB2F86F" box="[453,539,1906,1932]" country="Denmark" httpUri="http://grbio.org/cool/c1ae-v64p" name="Museum Geologicum Universitatis Hafniensis" pageId="119" pageNumber="120">MGUH</collectionCode>
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33218.
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</paragraph>
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<paragraph id="370E4725A977FF922BCCC6D8FD3FF837" blockId="119.[151,1436,1905,2041]" pageId="119" pageNumber="120">
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<emphasis id="05C59B37A977FF922BCCC6D8FEF3F853" bold="true" box="[199,346,1941,1968]" pageId="119" pageNumber="120">Occurrence.</emphasis>
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The taxon is known exclusively from the lithified top of the upper Maastrichtian Højerup Member of the Tor Formation at Rødvig, Stevns Klint.
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</paragraph>
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<paragraph id="370E4725A977FF9D2BCCC690FCE4FF19" blockId="119.[151,1436,1905,2041]" lastBlockId="120.[151,1437,152,1042]" lastPageId="120" lastPageNumber="121" pageId="119" pageNumber="120">
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<emphasis id="05C59B37A977FF922BCCC690FEF0F81B" bold="true" box="[199,345,2013,2040]" pageId="119" pageNumber="120">Description.</emphasis>
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Protoconch
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<quantity id="F049EAC0A977FF922AECC693FD94F81A" box="[487,573,2014,2041]" metricMagnitude="-4" metricUnit="m" metricValue="4.0" pageId="119" pageNumber="120" unit="mm" value="0.4">0.4 mm</quantity>
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high and
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<quantity id="F049EAC0A977FF9229A5C690FCBBF81A" box="[686,786,2013,2041]" metricMagnitude="-4" metricUnit="m" metricValue="3.5" pageId="119" pageNumber="120" unit="mm" value="0.35">0.35 mm</quantity>
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wide, conical multispiral with approximately 3 ½ convex whorls. First 1 ½ (embryonic) whorls seemingly smooth, subsequent whorls covered by up to around 35 closely spaced and very fine opisthocyrt collabral threads per whorl. A keel or coarse spiral rib appears on first post-embryonic whorl, while a second is added on last protoconch whorl.
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</paragraph>
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<paragraph id="370E4725A978FF9D2BCCC049FEAEFE69" blockId="120.[151,1437,152,1042]" pageId="120" pageNumber="121">Teleoconch slender turriculate, with evenly increasing whorl width; whorls weakly convex, constricted at narrow adapical suture bordered by spiral ribs; whorl height corresponding to half or slightly more than half the width. Transition to smooth flat base sharp, marked by subperipheral carination. Base flattened, smooth. Aperture unknown.</paragraph>
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<paragraph id="370E4725A978FF9D2BCCC0D9FCB6FDDD" blockId="120.[151,1437,152,1042]" pageId="120" pageNumber="121">Teleoconch sculpture dominated by coarse and weakly opisthocline transverse ribs, strongest centrally on whorl, interrupted adapically and at carination abapically, giving an impression of a more convex whorl; rib number increasing gradually with growth from around 14 on first teleoconch whorl. A more or less distinctly developed spiral rib and succeeding furrow occur adjacent to adapical suture. Interspaces between transverse ribs characterized by an additional five secondary and very weak spiral ribs.</paragraph>
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<paragraph id="370E4725A978FF9D2BCCC304FE03FD65" blockId="120.[151,1437,152,1042]" pageId="120" pageNumber="121">
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<emphasis id="05C59B37A978FF9D2BCCC304FED7FD80" bold="true" box="[199,382,585,611]" pageId="120" pageNumber="121">Measurements.</emphasis>
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Specimen
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<collectionCode id="51A0DFE0A978FF9D2AF1C304FDF9FD80" box="[506,592,585,611]" country="Denmark" httpUri="http://grbio.org/cool/c1ae-v64p" name="Museum Geologicum Universitatis Hafniensis" pageId="120" pageNumber="121">MGUH</collectionCode>
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33218 is
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<quantity id="F049EAC0A978FF9D29B5C305FCBCFD80" box="[702,789,584,611]" metricMagnitude="-3" metricUnit="m" metricValue="3.6" pageId="120" pageNumber="121" unit="mm" value="3.6">3.6 mm</quantity>
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high and
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<quantity id="F049EAC0A978FF9D288FC304FC73FD80" box="[900,986,585,611]" metricMagnitude="-4" metricUnit="m" metricValue="9.0" pageId="120" pageNumber="121" unit="mm" value="0.9">0.9 mm</quantity>
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wide, consisting of 3 ½ protoconch and eight teleoconch whorls.
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</paragraph>
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<paragraph id="370E4725A978FF9D2BCCC3DCFEB4FBF1" blockId="120.[151,1437,152,1042]" pageId="120" pageNumber="121">
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<emphasis id="05C59B37A978FF9D2BCCC3DCFE92FD48" bold="true" box="[199,315,657,683]" pageId="120" pageNumber="121">Remarks.</emphasis>
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<taxonomicName id="F0B13CA6A978FF9D2A48C3DDFE07FD49" authorityName="Thiele" authorityYear="1912" box="[323,430,656,682]" class="Gastropoda" family="Newtoniellidae" genus="Eumetula" kingdom="Animalia" pageId="120" pageNumber="121" phylum="Mollusca" rank="genus">
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<emphasis id="05C59B37A978FF9D2A48C3DDFE07FD49" box="[323,430,656,682]" italics="true" pageId="120" pageNumber="121">Eumetula</emphasis>
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</taxonomicName>
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sp. may be the oldest taxon assigned this genus so far, moving the generic range back to the Maastrichtian (see
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<bibRefCitation id="53203AD4A978FF9D2A92C3F9FD91FD2C" author="Grundel, J." box="[409,568,692,719]" pageId="120" pageNumber="121" pagination="209 - 264" refId="ref131300" refString="Grundel, J. (1980) Bemerkungen zur Uberfamilie Cerithiopsacea H. A. Adams, 1854 (Gastropoda) sowie zur Fassung einiger ihrer Gattungen. Zoologischer Anzeiger, Jena, 204, 3 (4), 209 - 264." type="journal article" year="1980">Gründel 1980</bibRefCitation>
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).
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<taxonomicName id="F0B13CA6A978FF9D2946C3F9FD11FD2D" authorityName="Thiele" authorityYear="1912" box="[589,696,692,718]" class="Gastropoda" family="Newtoniellidae" genus="Eumetula" kingdom="Animalia" pageId="120" pageNumber="121" phylum="Mollusca" rank="genus">
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<emphasis id="05C59B37A978FF9D2946C3F9FD11FD2D" box="[589,696,692,718]" italics="true" pageId="120" pageNumber="121">Eumetula</emphasis>
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</taxonomicName>
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sp. somewhat resembles the Belgian
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<taxonomicName id="F0B13CA6A978FF9D2F68C3F9FE3CFD10" authority="Briart & Cornet, 1873" authorityName="Briart & Cornet" authorityYear="1873" class="Gastropoda" family="Cerithiidae" genus="Cerithium" higherTaxonomySource="CoL" kingdom="Animalia" order="Littorinimorpha" pageId="120" pageNumber="121" phylum="Mollusca" rank="species" species="regularicostatum">
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<emphasis id="05C59B37A978FF9D2F68C3F9FA35FD2D" box="[1123,1436,692,718]" italics="true" pageId="120" pageNumber="121">Cerithium regularicostatum</emphasis>
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<bibRefCitation id="53203AD4A978FF9D2B9CC395FE3CFD10" author="Briart, A. & Cornet, F. L." box="[151,405,728,755]" pageId="120" pageNumber="121" pagination="1 - 95" refId="ref125915" refString="Briart, A. & Cornet, F. L. (1873) Description des fossiles du calcaire grossier de Mons. Gasteropodes. Ordre I. Prosobranches. Section B: Holostomes (premiere Partie). Memoires courronnes et Memoires des Savants Etrangers, Academie Royale des Sciences, des Lettres et des Beaux-Arts de Belgique, 37, i-iv + 1 - 95." type="journal article" year="1873">Briart & Cornet, 1873</bibRefCitation>
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</taxonomicName>
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from the Danian, which was reassigned to
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<taxonomicName id="F0B13CA6A978FF9D2887C395FB6DFD10" authority="Olsson, 1929" authorityName="Olsson" authorityYear="1929" box="[908,1220,728,755]" class="Gastropoda" family="Potamididae" genus="Harrisianella" higherTaxonomySource="GBIF" kingdom="Animalia" order="Neotaenioglossa" pageId="120" pageNumber="121" phylum="Mollusca" rank="genus">
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<emphasis id="05C59B37A978FF9D2887C395FB8DFD11" box="[908,1060,728,754]" italics="true" pageId="120" pageNumber="121">Harrisianella</emphasis>
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<bibRefCitation id="53203AD4A978FF9D2F26C395FB6DFD10" author="Olsson, A. A." box="[1069,1220,728,755]" pageId="120" pageNumber="121" pagination="67 - 116" refId="ref137012" refString="Olsson, A. A. (1929) Contributions to the Tertiary paleontology of northern Peru, Part 2: Upper Eocene Mollusca and Brachiopoda. Bulletins of American Paleontology, 15 (57), 67 - 116." type="journal article" year="1929">Olsson, 1929</bibRefCitation>
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</taxonomicName>
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by
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<bibRefCitation id="53203AD4A978FF9D2FF9C395FA30FD10" author="Glibert, M." box="[1266,1433,728,755]" pageId="120" pageNumber="121" pagination="1 - 116" refId="ref130648" refString="Glibert, M. (1973) Revision des Gastropoda du Danien et du Montien de la Belgique. 1. Les Gastropoda du Calcaire de Mons. Institut Royal des Sciences Naturelles de Belgique Memoire, 173, 1 - 116, pls. 1 - 11." type="journal article" year="1973">Glibert (1973)</bibRefCitation>
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. Both taxa clearly do not belong to this genus as revised by
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<bibRefCitation id="53203AD4A978FF9D283DC3B1FC41FCF4" author="Kowalke, T." box="[822,1000,764,791]" pageId="120" pageNumber="121" pagination="253 - 271" refId="ref134158" refString="Kowalke, T. (2001) Cerithioidea (Caenogastropoda, Cerithiimorpha) of Tethyan coastal swamps and their relations to modern mangal communities. Bulletin of the Czech Geological Survey, 76, 4, 253 - 271." type="journal article" year="2001">Kowalke (2001</bibRefCitation>
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: p. 260–261) and differ by much more convex whorls; the lack of an adapical subsutural spiral furrow and, at least with regard to the Danish taxon, by the densely sculptured protoconch whorls. The Danish taxon differs from
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<taxonomicName id="F0B13CA6A978FF9D28DEC209FAAEFCBD" box="[981,1287,836,862]" class="Gastropoda" family="Newtoniellidae" genus="Eumetula" kingdom="Animalia" pageId="120" pageNumber="121" phylum="Mollusca" rank="species" species="regularicostatum">
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<emphasis id="05C59B37A978FF9D28DEC209FAAEFCBD" box="[981,1287,836,862]" italics="true" pageId="120" pageNumber="121">Eumetula regularicostatum</emphasis>
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</taxonomicName>
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by the rather weakly convex teleoconch whorls and a more pronounced spiral rib demarcating the base. It is clearly distinguished from the Selandian
|
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<taxonomicName id="F0B13CA6A978FF9D2A73C2C1FCEAFC44" authority="Schnetler, 2001" authorityName="Schnetler" authorityYear="2001" box="[376,835,908,935]" class="Gastropoda" family="Potamididae" genus="Harrisianella" higherTaxonomySource="GBIF" kingdom="Animalia" order="Neotaenioglossa" pageId="120" pageNumber="121" phylum="Mollusca" rank="species" species="subglabra">
|
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<emphasis id="05C59B37A978FF9D2A73C2C1FD22FC45" box="[376,651,908,934]" italics="true" pageId="120" pageNumber="121">Harrisianella subglabra</emphasis>
|
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|
Schnetler, 2001
|
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</taxonomicName>
|
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|
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from
|
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<collectingCountry id="4FA607B5A978FF9D2881C2C1FC5BFC45" box="[906,1010,908,934]" name="Denmark" pageId="120" pageNumber="121">Denmark</collectingCountry>
|
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|
by the fewer and strongly sculptured protoconch whorls and by the more compact teleoconch whorls with their abapical spiral rib. The Selandian species does not belong within
|
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<taxonomicName id="F0B13CA6A978FF9D2A94C299FD9EFC0D" authorityName="Olsson" authorityYear="1929" box="[415,567,980,1006]" class="Gastropoda" family="Potamididae" genus="Harrisianella" higherTaxonomySource="GBIF" kingdom="Animalia" order="Neotaenioglossa" pageId="120" pageNumber="121" phylum="Mollusca" rank="genus">
|
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|
|
<emphasis id="05C59B37A978FF9D2A94C299FD9EFC0D" box="[415,567,980,1006]" italics="true" pageId="120" pageNumber="121">Harrisianella</emphasis>
|
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</taxonomicName>
|
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|
|
for the same reasons as for the species above and due to the high, multispiral protoconch.
|
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</paragraph>
|
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</subSubSection>
|
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</treatment>
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</document>
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