194 lines
20 KiB
XML
194 lines
20 KiB
XML
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<mods:title id="01042A6A149A3E360962C6F96DC961AC">Gastropods from the Late Jurassic - Early Cretaceous seep deposits in Spitsbergen, Svalbard</mods:title>
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<mods:namePart id="BC4E1A7D6E28A6EFB051DFDE570D31B8">Nakrem, Hans Arne</mods:namePart>
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<mods:title id="822D696A0CD318080ED1C8F9952116ED">Zootaxa</mods:title>
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<mods:part id="42033F02425CECD8CEFC76AE95D4FF35">
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<mods:date id="9B1C8CC4501DFB1842E0F59AFE47AC73">2017</mods:date>
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<treatment id="B5525419D023FFF3FF7BF9DFFDB3FDCD" ID-DOI="http://doi.org/10.5281/zenodo.6009541" ID-GBIF-Taxon="135135504" ID-Zenodo-Dep="6009541" LSID="urn:lsid:plazi:treatment:B5525419D023FFF3FF7BF9DFFDB3FDCD" httpUri="http://treatment.plazi.org/id/B5525419D023FFF3FF7BF9DFFDB3FDCD" lastPageId="4" lastPageNumber="355" pageId="3" pageNumber="354">
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<subSubSection id="75E1B684D023FFF4FF7BF9DFFEBFF9EE" pageId="3" pageNumber="354" type="nomenclature">
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<paragraph id="3D44E50FD023FFF4FF7BF9DFFD81F9CF" blockId="3.[151,538,1535,1595]" box="[151,538,1535,1562]" pageId="3" pageNumber="354">
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<heading id="660C5263D023FFF4FF7BF9DFFD81F9CF" bold="true" box="[151,538,1535,1562]" fontSize="11" level="1" pageId="3" pageNumber="354" reason="1">
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<emphasis id="0F8F391DD023FFF4FF7BF9DFFD81F9CF" bold="true" box="[151,538,1535,1562]" pageId="3" pageNumber="354">
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?
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<taxonomicName id="FAFB9E8CD023FFF4FF4AFA20FE29F9CC" ID-CoL="75XCT" authority="Nakrem, 2017" authorityName="Nakrem" authorityYear="2017" box="[166,434,1535,1561]" class="Gastropoda" family="Pectinodontidae" genus="Pectinodonta" kingdom="Animalia" pageId="3" pageNumber="354" phylum="Mollusca" rank="species" species="borealis" status="sp. nov.">
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<emphasis id="0F8F391DD023FFF4FF4AFA20FE29F9CC" bold="true" box="[166,434,1535,1561]" italics="true" pageId="3" pageNumber="354">Pectinodonta borealis</emphasis>
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</taxonomicName>
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<taxonomicNameLabel id="14BC8466D023FFF4FE56F9DFFD81F9CF" box="[442,538,1536,1562]" pageId="3" pageNumber="354" rank="species">sp. nov.</taxonomicNameLabel>
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</emphasis>
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</heading>
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</paragraph>
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<paragraph id="3D44E50FD023FFF4FF7BF9FDFEBFF9EE" blockId="3.[151,538,1535,1595]" box="[151,292,1570,1595]" pageId="3" pageNumber="354">
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(
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<figureCitation id="A5C0F98AD023FFF4FF73F9FDFE87F9EE" box="[159,284,1570,1595]" captionStart="FIGURE 3" captionStartId="5.[151,250,991,1013]" captionTargetBox="[151,1436,223,947]" captionTargetId="figure@5.[151,1436,223,947]" captionTargetPageId="5" captionText="FIGURE 3. A – C. Hikidea svalbardensis sp. nov. Seep deposit # 9, Sassenfjorden, Svalbard; late Berriasian (Early Cretaceous); holotype (PMO 217.574). D – H.? Pectinodonta borealis sp. nov. Seep deposit # 9, Sassenfjorden, Svalbard; late Berriasian (Early Cretaceous). D, E, G. Holotype (PMO 217.516). F, H. Internal mould (PMO 224.752)." httpUri="https://zenodo.org/record/1003018/files/figure.png" pageId="3" pageNumber="354">Fig. 3D–H</figureCitation>
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)
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</paragraph>
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</subSubSection>
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<subSubSection id="75E1B684D023FFF4FF7BF9B5FCCCF955" box="[151,855,1642,1664]" pageId="3" pageNumber="354" type="description">
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<paragraph id="3D44E50FD023FFF4FF7BF9B5FCCCF955" blockId="3.[151,855,1642,1664]" box="[151,855,1642,1664]" pageId="3" pageNumber="354">
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2015
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<taxonomicName id="FAFB9E8CD023FFF4FF3DF9B5FEDEF955" box="[209,325,1642,1664]" class="Gastropoda" family="Acmaeidae" kingdom="Animalia" pageId="3" pageNumber="354" phylum="Mollusca" rank="family">Acmaeidae</taxonomicName>
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gen. et sp. indet.;
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<bibRefCitation id="596A98FED023FFF4FDE8F9B5FC9BF955" author="Hryniewicz" box="[516,768,1642,1664]" pageId="3" pageNumber="354" 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="0F8F391DD023FFF4FD6FF9B4FD23F955" box="[643,696,1642,1664]" italics="true" pageId="3" pageNumber="354">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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</subSubSection>
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<subSubSection id="75E1B684D023FFF4FF7BF972FC25F93C" pageId="3" pageNumber="354" type="diagnosis">
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<paragraph id="3D44E50FD023FFF4FF7BF972FC25F93C" blockId="3.[151,1436,1709,1986]" pageId="3" pageNumber="354">
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<emphasis id="0F8F391DD023FFF4FF7BF972FE96F913" bold="true" box="[151,269,1709,1734]" pageId="3" pageNumber="354">Diagnosis</emphasis>
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: Surface covered with thick commarginal ribs. Aperture elongated, oval. Apex slightly subcentral.
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<emphasis id="0F8F391DD023FFF4FF2BF90EFEA4F93F" bold="true" box="[199,319,1745,1770]" pageId="3" pageNumber="354">Holotype:</emphasis>
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PMO 217.516, H =
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<quantity id="FA0348EAD023FFF4FDC6F90DFD1FF93C" box="[554,644,1746,1770]" metricMagnitude="-3" metricUnit="m" metricValue="1.8" pageId="3" pageNumber="354" unit="mm" value="1.8">1.8 mm</quantity>
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, L =
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<quantity id="FA0348EAD023FFF4FD2CF90DFC81F93C" box="[704,794,1746,1770]" metricMagnitude="-3" metricUnit="m" metricValue="4.1" pageId="3" pageNumber="354" unit="mm" value="4.1">4.1 mm</quantity>
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, W =
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<quantity id="FA0348EAD023FFF4FCB3F90DFC21F93C" box="[863,954,1746,1770]" metricMagnitude="-3" metricUnit="m" metricValue="3.3" pageId="3" pageNumber="354" unit="mm" value="3.3">3.3 mm</quantity>
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.
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</paragraph>
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</subSubSection>
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<subSubSection id="75E1B684D023FFF4FF2BF92AFC82F817" pageId="3" pageNumber="354" type="materials_examined">
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<paragraph id="3D44E50FD023FFF4FF2BF92AFC82F817" blockId="3.[151,1436,1709,1986]" pageId="3" pageNumber="354">
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<materialsCitation id="8D93EF52D023FFF4FF2BF92AFCC6F8DB" ID-GBIF-Occurrence="1664833085" box="[199,861,1781,1806]" country="Svalbard and Jan Mayen" location="Seep" municipality="Sassenfjorden" pageId="3" pageNumber="354" specimenCount="1" typeStatus="holotype">
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<emphasis id="0F8F391DD023FFF4FF2BF92AFE48F8DB" bold="true" box="[199,467,1781,1806]" pageId="3" pageNumber="354">
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||
<typeStatus id="E2405BADD023FFF4FF2BF92AFE98F8DB" box="[199,259,1781,1806]" pageId="3" pageNumber="354">Type</typeStatus>
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locality and age:
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</emphasis>
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||
<location id="3824B3D4D023FFF4FE36F929FD8AF8DB" LSID="urn:lsid:plazi:treatment:B5525419D023FFF3FF7BF9DFFDB3FDCD:3824B3D4D023FFF4FE36F929FD8AF8DB" box="[474,529,1782,1806]" country="Svalbard and Jan Mayen" municipality="Sassenfjorden" name="Seep" pageId="3" pageNumber="354">Seep</location>
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#9,
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<collectingMunicipality id="DD207F75D023FFF4FDA8F92AFD73F8DB" box="[580,744,1781,1806]" pageId="3" pageNumber="354">Sassenfjorden</collectingMunicipality>
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,
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<collectingCountry id="45ECA59FD023FFF4FD1FF92AFCC6F8DB" box="[755,861,1781,1806]" name="Svalbard and Jan Mayen" pageId="3" pageNumber="354">Svalbard</collectingCountry>
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</materialsCitation>
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;
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<materialsCitation id="8D93EF52D023FFF4FC84F92AFC82F817" ID-GBIF-Occurrence="1664833084" country="Svalbard and Jan Mayen" county="Muscle" location="Shell" municipality="Apertural" pageId="3" pageNumber="354" specimenCount="1" typeStatus="holotype">
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late Berriasian, Early Cretaceous.
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<emphasis id="0F8F391DD023FFF4FF2BF8C6FE13F8E7" bold="true" box="[199,392,1817,1842]" pageId="3" pageNumber="354">Other material:</emphasis>
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Two additional specimens (one illustrated PMO 224.752) from the
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<typeStatus id="E2405BADD023FFF4FB7DF8C5FB58F8E7" box="[1169,1219,1818,1842]" pageId="3" pageNumber="354">type</typeStatus>
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locality.
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<emphasis id="0F8F391DD023FFF4FF2BF8E2FEC7F883" bold="true" box="[199,348,1853,1878]" pageId="3" pageNumber="354">Description.</emphasis>
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Protoconch not preserved.
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<location id="3824B3D4D023FFF4FD4AF8E2FD7AF883" LSID="urn:lsid:plazi:treatment:B5525419D023FFF3FF7BF9DFFDB3FDCD:3824B3D4D023FFF4FD4AF8E2FD7AF883" box="[678,737,1853,1878]" country="Svalbard and Jan Mayen" county="Muscle" municipality="Apertural" name="Shell" pageId="3" pageNumber="354">Shell</location>
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patelliform, elongate, oval; width is 81% of length.
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<location id="3824B3D4D023FFF4FAB2F8E1FA07F883" LSID="urn:lsid:plazi:treatment:B5525419D023FFF3FF7BF9DFFDB3FDCD:3824B3D4D023FFF4FAB2F8E1FA07F883" box="[1374,1436,1854,1878]" country="Svalbard and Jan Mayen" county="Muscle" municipality="Apertural" name="Apex" pageId="3" pageNumber="354">Apex</location>
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moderately high, heavily eroded, situated slightly subcentrally; height is 43% of length.
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<location id="3824B3D4D023FFF4FB70F8BEFB4CF8AF" LSID="urn:lsid:plazi:treatment:B5525419D023FFF3FF7BF9DFFDB3FDCD:3824B3D4D023FFF4FB70F8BEFB4CF8AF" box="[1180,1239,1889,1914]" country="Svalbard and Jan Mayen" county="Muscle" municipality="Apertural" name="Shell" pageId="3" pageNumber="354">Shell</location>
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exterior covered with thick concentric ribs.
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<location id="3824B3D4D023FFF4FE3CF85AFD80F84B" LSID="urn:lsid:plazi:treatment:B5525419D023FFF3FF7BF9DFFDB3FDCD:3824B3D4D023FFF4FE3CF85AFD80F84B" box="[464,539,1925,1950]" country="Svalbard and Jan Mayen" county="Muscle" municipality="Apertural" name="Radial" pageId="3" pageNumber="354">Radial</location>
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ornament very weak, consisting of straight and faint radial riblets.
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<collectingMunicipality id="DD207F75D023FFF4FAC2F85AFA07F84B" box="[1326,1436,1925,1950]" pageId="3" pageNumber="354">Apertural</collectingMunicipality>
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margin straight in lateral view.
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<collectingCounty id="D4259D83D023FFF4FE11F876FDCAF817" box="[509,593,1961,1986]" pageId="3" pageNumber="354">Muscle</collectingCounty>
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scars not visible.
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</materialsCitation>
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</paragraph>
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</subSubSection>
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<subSubSection id="75E1B684D024FFF3FF2BFF48FE60FE05" pageId="4" pageNumber="355" type="discussion">
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<paragraph id="3D44E50FD024FFF3FF2BFF48FE60FE05" blockId="4.[151,1437,151,536]" pageId="4" pageNumber="355">
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<emphasis id="0F8F391DD024FFF3FF2BFF48FEA6FF65" bold="true" box="[199,317,151,176]" pageId="4" pageNumber="355">Remarks.</emphasis>
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The concept of genera in
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<taxonomicName id="FAFB9E8CD024FFF3FD96FF48FCA8FF65" authorityName="Pilsbry" authorityYear="1891" box="[634,819,151,176]" class="Gastropoda" family="Pectinodontidae" kingdom="Animalia" pageId="4" pageNumber="355" phylum="Mollusca" rank="family">Pectinodontidae</taxonomicName>
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is based mainly on radular characters (
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<bibRefCitation id="596A98FED024FFF3FAE4FF48FF4EFF01" author="Sasaki" pageId="4" pageNumber="355" refString="Sasaki, T., Okutani, T. & Fujikura, K. (2003) New taxa and new records of patelliform gastropods associated with chemoautosynthesis-based communities in Japanese waters. Veliger, 46, 189 - 210." type="journal article" year="2003">
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Sasaki
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<emphasis id="0F8F391DD024FFF3FAB3FF46FA00FF65" box="[1375,1435,151,176]" italics="true" pageId="4" pageNumber="355">et al.</emphasis>
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2003
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</bibRefCitation>
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). A slight difference in the apex position delimits, though tenuously, the shells of
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<taxonomicName id="FAFB9E8CD024FFF3FB21FF63FAFDFF00" authorityName="Dall" authorityYear="1882" box="[1229,1382,188,213]" class="Gastropoda" family="Pectinodontidae" genus="Pectinodonta" kingdom="Animalia" pageId="4" pageNumber="355" phylum="Mollusca" rank="genus">
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<emphasis id="0F8F391DD024FFF3FB21FF63FAFDFF00" box="[1229,1382,188,213]" italics="true" pageId="4" pageNumber="355">Pectinodonta</emphasis>
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</taxonomicName>
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and
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<taxonomicName id="FAFB9E8CD024FFF3FF7BFF00FEA8FF2D" box="[151,307,223,248]" class="Gastropoda" family="Pectinodontidae" genus="Bathyacmaea" kingdom="Animalia" pageId="4" pageNumber="355" phylum="Mollusca" rank="genus">
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<emphasis id="0F8F391DD024FFF3FF7BFF00FEA8FF2D" box="[151,307,223,248]" italics="true" pageId="4" pageNumber="355">Bathyacmaea</emphasis>
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</taxonomicName>
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. The Sassenfjorden limpet has a slightly subcentral apex, so we decided to place it, though with hesitation, in
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<taxonomicName id="FAFB9E8CD024FFF3FEACFEDBFE42FEC8" authorityName="Dall" authorityYear="1882" box="[320,473,260,285]" class="Gastropoda" family="Pectinodontidae" genus="Pectinodonta" kingdom="Animalia" pageId="4" pageNumber="355" phylum="Mollusca" rank="genus">
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<emphasis id="0F8F391DD024FFF3FEACFEDBFE42FEC8" box="[320,473,260,285]" italics="true" pageId="4" pageNumber="355">Pectinodonta</emphasis>
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</taxonomicName>
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. The most similar species to?
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<taxonomicName id="FAFB9E8CD024FFF3FCB3FEDBFBF8FEC8" authority="Nakrem, 2017" authorityName="Nakrem" authorityYear="2017" box="[863,1123,260,285]" class="Gastropoda" family="Pectinodontidae" genus="Pectinodonta" kingdom="Animalia" pageId="4" pageNumber="355" phylum="Mollusca" rank="species" species="borealis" status="sp. nov.">
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<emphasis id="0F8F391DD024FFF3FCB3FEDBFBF8FEC8" box="[863,1123,260,285]" italics="true" pageId="4" pageNumber="355">Pectinodonta borealis</emphasis>
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</taxonomicName>
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||
<emphasis id="0F8F391DD024FFF3FB9DFEDBFB4FFEC8" bold="true" box="[1137,1236,260,285]" pageId="4" pageNumber="355">
|
||
<taxonomicNameLabel id="14BC8466D024FFF3FB9DFEDBFB4FFEC8" box="[1137,1236,260,285]" pageId="4" pageNumber="355" rank="species">sp. nov.</taxonomicNameLabel>
|
||
</emphasis>
|
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is
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<taxonomicName id="FAFB9E8CD024FFF3FAEFFEDBFE56FE95" authority="Marshall, 1985" authorityName="Marshall" authorityYear="1985" class="Gastropoda" family="Pectinodontidae" genus="Pectinodonta" kingdom="Animalia" pageId="4" pageNumber="355" phylum="Mollusca" rank="species" species="waitemata">
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<emphasis id="0F8F391DD024FFF3FAEFFEDBFE95FE95" italics="true" pageId="4" pageNumber="355">Pectinodonta waitemata</emphasis>
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<bibRefCitation id="596A98FED024FFF3FEF5FEF8FE56FE95" author="Marshall" box="[281,461,295,320]" pageId="4" pageNumber="355" refString="Marshall, B. A. (1985) Recent and Tertiary deep-sea limpets of the genus Pectinodonta Dall (Mollusca: Gastropoda) from New Zealand and New South Wales. New Zealand Journal of Zoology, 12, 273 - 282. https: // doi. org / 10.1080 / 03014223.1985.10428281" type="journal article" year="1985">Marshall, 1985</bibRefCitation>
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</taxonomicName>
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, from Miocene flysch deposits with plant and wood material from
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<collectingCountry id="45ECA59FD024FFF3FB14FEF7FA03FE95" box="[1272,1432,295,320]" name="New Zealand" pageId="4" pageNumber="355">New Zealand</collectingCountry>
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.
|
||
<taxonomicName id="FAFB9E8CD024FFF3FF7BFE93FE2FFEB1" authorityName="Marshall" authorityYear="1985" box="[151,436,332,357]" class="Gastropoda" family="Pectinodontidae" genus="Pectinodonta" kingdom="Animalia" pageId="4" pageNumber="355" phylum="Mollusca" rank="species" species="waitemata">
|
||
<emphasis id="0F8F391DD024FFF3FF7BFE93FE2FFEB1" box="[151,436,332,357]" italics="true" pageId="4" pageNumber="355">Pectinodonta waitemata</emphasis>
|
||
</taxonomicName>
|
||
also has strong concentric ridges and faint radial ornament; however, its apex is positioned much more eccentrically. The Oligocene
|
||
<taxonomicName id="FAFB9E8CD024FFF3FD15FEB0FA07FE5D" authority="Lindberg & Hedegaard, 1996" authorityName="Lindberg & Hedegaard" authorityYear="1996" box="[761,1436,367,392]" class="Gastropoda" family="Pectinodontidae" genus="Pectinodonta" kingdom="Animalia" pageId="4" pageNumber="355" phylum="Mollusca" rank="species" species="palaeoxylodia">
|
||
<emphasis id="0F8F391DD024FFF3FD15FEB0FBA5FE5D" box="[761,1086,367,392]" italics="true" pageId="4" pageNumber="355">Pectinodonta palaeoxylodia</emphasis>
|
||
<bibRefCitation id="596A98FED024FFF3FBAAFEB0FA07FE5D" author="Lindberg" box="[1094,1436,367,392]" pageId="4" pageNumber="355" refString="Lindberg, D. R. & Hedegaard, C. (1996) A deep water Patellogastropod from Oligocene water-logged wood of Washington state, USA (Acmaeoidea: Pectinidonta). Journal of Molluscan Studies, 62, 299 - 314. https: // doi. org / 10.1093 / mollus / 62.3.299" type="journal article" year="1996">Lindberg & Hedegaard, 1996</bibRefCitation>
|
||
</taxonomicName>
|
||
from a wood-fall in
|
||
<collectingRegion id="FF3F2BEDD024FFF3FE62FE4BFD8DFE78" box="[398,534,404,429]" country="United States of America" name="Washington" pageId="4" pageNumber="355">Washington</collectingRegion>
|
||
State,
|
||
<collectingCountry id="45ECA59FD024FFF3FD82FE4BFD3CFE79" box="[622,679,404,428]" name="United States of America" pageId="4" pageNumber="355">USA</collectingCountry>
|
||
differs in having a stronger radial ornament than commarginal (
|
||
<bibRefCitation id="596A98FED024FFF3FF72FE68FE75FE05" author="Lindberg" box="[158,494,439,464]" pageId="4" pageNumber="355" refString="Lindberg, D. R. & Hedegaard, C. (1996) A deep water Patellogastropod from Oligocene water-logged wood of Washington state, USA (Acmaeoidea: Pectinidonta). Journal of Molluscan Studies, 62, 299 - 314. https: // doi. org / 10.1093 / mollus / 62.3.299" type="journal article" year="1996">Lindberg & Hedegaard 1996</bibRefCitation>
|
||
).
|
||
</paragraph>
|
||
</subSubSection>
|
||
<subSubSection id="75E1B684D024FFF3FF2BFE03FDDAFE20" box="[199,577,476,501]" pageId="4" pageNumber="355" type="distribution">
|
||
<paragraph id="3D44E50FD024FFF3FF2BFE03FDDAFE20" blockId="4.[151,1437,151,536]" box="[199,577,476,501]" pageId="4" pageNumber="355">
|
||
<emphasis id="0F8F391DD024FFF3FF2BFE03FEFFFE20" bold="true" box="[199,356,476,501]" pageId="4" pageNumber="355">Distribution.</emphasis>
|
||
<typeStatus id="E2405BADD024FFF3FE87FE02FE3FFE20" box="[363,420,477,501]" pageId="4" pageNumber="355">Type</typeStatus>
|
||
locality only.
|
||
</paragraph>
|
||
</subSubSection>
|
||
<subSubSection id="75E1B684D024FFF3FF2BFE20FDB3FDCD" box="[199,552,511,536]" pageId="4" pageNumber="355" type="etymology">
|
||
<paragraph id="3D44E50FD024FFF3FF2BFE20FDB3FDCD" blockId="4.[151,1437,151,536]" box="[199,552,511,536]" pageId="4" pageNumber="355">
|
||
<emphasis id="0F8F391DD024FFF3FF2BFE20FECBFDCD" bold="true" box="[199,336,511,536]" pageId="4" pageNumber="355">Etymology.</emphasis>
|
||
Northern in Latin.
|
||
</paragraph>
|
||
</subSubSection>
|
||
</treatment>
|
||
</document> |