165 lines
18 KiB
XML
165 lines
18 KiB
XML
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<mods:title id="C518B197D967AB8F343B42162C55D3D1">Gastropods from the Late Jurassic - Early Cretaceous seep deposits in Spitsbergen, Svalbard</mods:title>
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<mods:namePart id="1F737D241530FC88DF30AAF921536227">Nakrem, Hans Arne</mods:namePart>
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<mods:title id="F3B58738AD97AABEC5D8F6E148FD8583">Zootaxa</mods:title>
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<mods:date id="4764516F2C2516C049A9CC5B6BF34F1B">2017</mods:date>
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<treatment id="B5525419D027FFF0FF7BFCBDFAA3F9B2" ID-DOI="http://doi.org/10.5281/zenodo.6009563" ID-GBIF-Taxon="135135489" ID-Zenodo-Dep="6009563" LSID="urn:lsid:plazi:treatment:B5525419D027FFF0FF7BFCBDFAA3F9B2" httpUri="http://treatment.plazi.org/id/B5525419D027FFF0FF7BFCBDFAA3F9B2" lastPageNumber="358" pageId="7" pageNumber="358">
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<subSubSection id="75E1B684D027FFF0FF7BFCBDFE80FC4B" pageId="7" pageNumber="358" type="nomenclature">
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<paragraph id="3D44E50FD027FFF0FF7BFCBDFE0BFCA9" blockId="7.[151,400,866,926]" box="[151,400,866,892]" pageId="7" pageNumber="358">
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<heading id="660C5263D027FFF0FF7BFCBDFE0BFCA9" bold="true" box="[151,400,866,892]" fontSize="11" level="1" pageId="7" pageNumber="358" reason="1">
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<emphasis id="0F8F391DD027FFF0FF7BFCBDFE0BFCA9" bold="true" box="[151,400,866,892]" pageId="7" pageNumber="358">
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<taxonomicName id="FAFB9E8CD027FFF0FF7BFCBDFEFDFCA9" authorityName="Kaim, Jenkins & Waren" authorityYear="2008" box="[151,358,866,892]" class="Gastropoda" family="Provannidae" genus="Hokkaidoconcha" higherTaxonomySource="GBIF" kingdom="Animalia" pageId="7" pageNumber="358" phylum="Mollusca" rank="genus">
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<emphasis id="0F8F391DD027FFF0FF7BFCBDFEFDFCA9" bold="true" box="[151,358,866,892]" italics="true" pageId="7" pageNumber="358">Hokkaidoconcha</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="3D44E50FD027FFF0FF7BFC5AFE80FC4B" blockId="7.[151,400,866,926]" box="[151,283,901,926]" pageId="7" pageNumber="358">
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(
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<figureCitation id="A5C0F98AD027FFF0FF73FC5AFE88FC4B" box="[159,275,901,926]" captionStart="FIGURE 5" captionStartId="8.[151,250,1489,1511]" captionTargetBox="[151,1436,193,1468]" captionTargetId="figure@8.[151,1436,193,1468]" captionTargetPageId="8" captionText="FIGURE 5. A – H. Hudlestoniella hammeri sp. nov. Seep deposit # 9, Sassenfjorden, Svalbard; late Berriasian (Early Cretaceous). A, B, F. Holotype (PMO 224.754). C, G, H. Paratype (PMO 224.755). D. PMO 224.756. E. PMO 224.757. I – M. Hokkaidoconcha sp. Seep deposit # 12, Sassenfjorden, Svalbard; late Berriasian (Early Cretaceous). I. PMO 217.509. J, L. PMO 217.511 b. K, M. PMO 217.507." httpUri="https://zenodo.org/record/1003022/files/figure.png" pageId="7" pageNumber="358">
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Fig.
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<date id="4945C3CFD027FFF0FF38FC5AFF72FC4B" box="[212,233,901,926]" pageId="7" pageNumber="358">5I</date>
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–M
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</figureCitation>
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)
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</paragraph>
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</subSubSection>
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<subSubSection id="75E1B684D027FFF0FF7BFC12FABBFB99" pageId="7" pageNumber="358" type="description">
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<paragraph id="3D44E50FD027FFF0FF7BFC12FC05FC36" blockId="7.[151,926,973,995]" box="[151,926,973,995]" pageId="7" pageNumber="358">
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2015
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<taxonomicName id="FAFB9E8CD027FFF0FF3CFC12FE00FC36" authorityName="Kaim, Jenkins & Waren" authorityYear="2008" box="[208,411,973,995]" class="Gastropoda" family="Hokkaidoconchidae" higherTaxonomySource="GBIF" kingdom="Animalia" pageId="7" pageNumber="358" phylum="Mollusca" rank="family">Hokkaidoconchidae</taxonomicName>
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gen. et sp. indet.;
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<bibRefCitation id="596A98FED027FFF0FDB8FC12FCD2FC36" author="Hryniewicz" box="[596,841,973,995]" pageId="7" pageNumber="358" 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="0F8F391DD027FFF0FD3CFC11FC98FC36" box="[720,771,973,995]" italics="true" pageId="7" pageNumber="358">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="3D44E50FD027FFF0FF7BFBD0FABBFB99" blockId="7.[151,1437,1039,1640]" pageId="7" pageNumber="358">
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<emphasis id="0F8F391DD027FFF0FF7BFBD0FEB2FBFD" bold="true" box="[151,297,1039,1064]" pageId="7" pageNumber="358">Description.</emphasis>
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Cerithioid shell with opisthocline to slightly opisthocyrt axial ribs and fine numerous spiral riblets. Whorl flanks are weakly inflated and the suture weakly incised. Protoconch and aperture not preserved.
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</paragraph>
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</subSubSection>
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<subSubSection id="75E1B684D027FFF0FF2BFB88FC7AFB41" pageId="7" pageNumber="358" type="materials_examined">
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<paragraph id="3D44E50FD027FFF0FF2BFB88FC7AFB41" blockId="7.[151,1437,1039,1640]" pageId="7" pageNumber="358">
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<emphasis id="0F8F391DD027FFF0FF2BFB88FE67FBA5" bold="true" box="[199,508,1111,1136]" pageId="7" pageNumber="358">Material and occurrence:</emphasis>
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Three specimens from seep #12, Sassenfjorden, Svalbard; late Berriasian (Early Cretaceous). All illustrated: PMO 217.507, PMO 217.509, PMO 217.511b.
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</paragraph>
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</subSubSection>
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<subSubSection id="75E1B684D027FFF0FF2BFB40FAA3F9B2" pageId="7" pageNumber="358" type="discussion">
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<paragraph id="3D44E50FD027FFF0FF2BFB40FAA3F9B2" blockId="7.[151,1437,1039,1640]" pageId="7" pageNumber="358">
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<emphasis id="0F8F391DD027FFF0FF2BFB40FEA0FB6D" bold="true" box="[199,315,1183,1208]" pageId="7" pageNumber="358">Remarks.</emphasis>
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<taxonomicName id="FAFB9E8CD027FFF0FEAFFB40FD9AFB6D" authorityName="Kaim, Jenkins & Waren" authorityYear="2008" box="[323,513,1183,1208]" class="Gastropoda" family="Provannidae" genus="Hokkaidoconcha" higherTaxonomySource="GBIF" kingdom="Animalia" pageId="7" pageNumber="358" phylum="Mollusca" rank="genus">
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<emphasis id="0F8F391DD027FFF0FEAFFB40FD9AFB6D" box="[323,513,1183,1208]" italics="true" pageId="7" pageNumber="358">Hokkaidoconcha</emphasis>
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</taxonomicName>
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sp. is represented by three incompletely preserved juvenile specimens, so several pertinent shell characters could not be observed, and this is the reason why we decided to leave this species in open nomenclature. Our
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<taxonomicName id="FAFB9E8CD027FFF0FE9EFB38FDABFAD5" authorityName="Kaim, Jenkins & Waren" authorityYear="2008" box="[370,560,1255,1280]" class="Gastropoda" family="Provannidae" genus="Hokkaidoconcha" higherTaxonomySource="GBIF" kingdom="Animalia" pageId="7" pageNumber="358" phylum="Mollusca" rank="genus">
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<emphasis id="0F8F391DD027FFF0FE9EFB38FDABFAD5" box="[370,560,1255,1280]" italics="true" pageId="7" pageNumber="358">Hokkaidoconcha</emphasis>
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</taxonomicName>
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sp. from
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<collectingCountry id="45ECA59FD027FFF0FD73FB38FC98FAD5" box="[671,771,1255,1280]" name="Svalbard and Jan Mayen" pageId="7" pageNumber="358">Svalbard</collectingCountry>
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is most similar to juveniles of the Cenomanian
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<taxonomicName id="FAFB9E8CD027FFF0FAC8FB36FA07FAD5" authorityName="Kaim, Jenkins & Waren" authorityYear="2008" box="[1316,1436,1255,1280]" class="Gastropoda" family="Provannidae" genus="Hokkaidoconcha" higherTaxonomySource="GBIF" kingdom="Animalia" pageId="7" pageNumber="358" phylum="Mollusca" rank="species" species="tanabei">
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<emphasis id="0F8F391DD027FFF0FAC8FB36FA07FAD5" box="[1316,1436,1255,1280]" italics="true" pageId="7" pageNumber="358">H. tanabei</emphasis>
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</taxonomicName>
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from
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<collectingCountry id="45ECA59FD027FFF0FF34FAD3FE83FAF6" box="[216,280,1292,1315]" name="Japan" pageId="7" pageNumber="358">Japan</collectingCountry>
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(
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<bibRefCitation id="596A98FED027FFF0FEC5FAD4FD9EFAF1" author="Kaim" box="[297,517,1291,1316]" pageId="7" pageNumber="358" refString="Kaim, A., Jenkins, R. G. & Waren, A. (2008 b) Provannid and provannid-like gastropods from the Late Cretaceous cold seeps of Hokkaido (Japan) and the fossil record of the Provannidae (Gastropoda: Abyssochrysoidea). Zoological Journal of the Linnean Society, 154, 421 - 436. https: // doi. org / 10.1111 / j. 1096 - 3642.2008.00431. x" type="journal article" year="2008" yearSuffix="b">
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Kaim
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<emphasis id="0F8F391DD027FFF0FE98FAD2FE2BFAF1" box="[372,432,1291,1316]" italics="true" pageId="7" pageNumber="358">et al.</emphasis>
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2008b
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</bibRefCitation>
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). The latter species, however, grows to a relatively large size and its ornament changes with ontogeny. Changes in ontogeny could not be observed in
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<taxonomicName id="FAFB9E8CD027FFF0FC52FAF0FBE7FA9D" authorityName="Kaim, Jenkins & Waren" authorityYear="2008" box="[958,1148,1327,1352]" class="Gastropoda" family="Provannidae" genus="Hokkaidoconcha" higherTaxonomySource="GBIF" kingdom="Animalia" pageId="7" pageNumber="358" phylum="Mollusca" rank="genus">
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<emphasis id="0F8F391DD027FFF0FC52FAF0FBE7FA9D" box="[958,1148,1327,1352]" italics="true" pageId="7" pageNumber="358">Hokkaidoconcha</emphasis>
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</taxonomicName>
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sp. from
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<collectingCountry id="45ECA59FD027FFF0FB06FAF0FAD5FA9D" box="[1258,1358,1327,1352]" name="Svalbard and Jan Mayen" pageId="7" pageNumber="358">Svalbard</collectingCountry>
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due to the fragmentary preservation. Another similar species is
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<taxonomicName id="FAFB9E8CD027FFF0FCCDFA8AFB1DFAB9" authority="(Stanton, 1895)" authorityName="Stanton" authorityYear="1895" baseAuthorityName="Stanton" baseAuthorityYear="1895" box="[801,1158,1363,1388]" class="Gastropoda" family="Provannidae" genus="Hokkaidoconcha" higherTaxonomySource="GBIF" kingdom="Animalia" pageId="7" pageNumber="358" phylum="Mollusca" rank="species" species="occidentalis">
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<emphasis id="0F8F391DD027FFF0FCCDFA8AFC57FAB9" box="[801,972,1363,1388]" italics="true" pageId="7" pageNumber="358">H. occidentalis</emphasis>
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(
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<bibRefCitation id="596A98FED027FFF0FC32FA8BFBE6FAB9" author="Stanton" box="[990,1149,1363,1388]" pageId="7" pageNumber="358" refString="Stanton, T. W. (1895) Contributions to the Cretaceous paleontology of the Pacific coast: the fauna of the Knoxville beds. Bulletin of the United States Geological Survey, 133, 1 - 132." type="journal article" year="1895">Stanton, 1895</bibRefCitation>
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)
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</taxonomicName>
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from the Late Jurassic– Early Cretaceous of California (
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<bibRefCitation id="596A98FED027FFF0FE12FAA8FD28FA45" author="Kiel" box="[510,691,1399,1424]" pageId="7" pageNumber="358" refString="Kiel, S., Campbell, K. A., Elder, W. P. & Little, C. T. S. (2008) Jurassic and Cretaceous gastropods from hydrocarbon seeps in forearc basin and accretionary prism settings, California. Acta Palaeontologica Polonica, 53, 679 - 703. https: // doi. org / 10.4202 / app. 2008.0412" type="journal article" year="2008">
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Kiel
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<emphasis id="0F8F391DD027FFF0FDDBFAA6FDEBFA45" box="[567,624,1399,1424]" italics="true" pageId="7" pageNumber="358">et al.</emphasis>
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2008
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</bibRefCitation>
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; Kaim
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<emphasis id="0F8F391DD027FFF0FCE8FAA6FCA7FA45" box="[772,828,1399,1424]" italics="true" pageId="7" pageNumber="358">et al.</emphasis>
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2014) which seems, however, to have a much weaker developed spiral ornamentation and stronger axial ribs.
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<taxonomicName id="FAFB9E8CD027FFF0FCF6FA44FAABFA61" authority="Kaim & Kelly, 2009" authorityName="Kaim & Kelly" authorityYear="2009" box="[794,1328,1435,1460]" class="Gastropoda" family="Provannidae" genus="Hokkaidoconcha" higherTaxonomySource="GBIF" kingdom="Animalia" pageId="7" pageNumber="358" phylum="Mollusca" rank="species" species="hignalli">
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<emphasis id="0F8F391DD027FFF0FCF6FA44FBA2FA61" box="[794,1081,1435,1460]" italics="true" pageId="7" pageNumber="358">Hokkaidoconcha hignalli</emphasis>
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<bibRefCitation id="596A98FED027FFF0FBAFFA44FAABFA61" author="Kaim" box="[1091,1328,1435,1460]" pageId="7" pageNumber="358" refString="Kaim, A. & Kelly, S. R. A. (2009) Mass occurrence of hokkaidoconchid gastropods in the Upper Jurassic methane seep carbonate from Alexander Island, Antarctica. Antarctic Science, 21, 279 - 284. https: // doi. org / 10.1017 / S 0954102009001813" type="journal article" year="2009">Kaim & Kelly, 2009</bibRefCitation>
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</taxonomicName>
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from the Tithonian (Late Jurassic) Gateway Pass seep on Alexander Island,
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<collectingCountry id="45ECA59FD027FFF0FC41FA60FBBEFA0D" box="[941,1061,1471,1496]" name="Antarctica" pageId="7" pageNumber="358">Antarctica</collectingCountry>
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, loses the ornamentation during ontogeny and may thus actually belong to the genus
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<taxonomicName id="FAFB9E8CD027FFF0FD0CFA3CFC1EFA29" authorityName="Cossmann" authorityYear="1909" box="[736,901,1507,1532]" class="Gastropoda" family="Rissoidae" genus="Hudlestoniella" higherTaxonomySource="GBIF" kingdom="Animalia" order="Littorinimorpha" pageId="7" pageNumber="358" phylum="Mollusca" rank="genus">
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<emphasis id="0F8F391DD027FFF0FD0CFA3CFC1EFA29" box="[736,901,1507,1532]" italics="true" pageId="7" pageNumber="358">Hudlestoniella</emphasis>
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</taxonomicName>
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(see below). Superficially,
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<taxonomicName id="FAFB9E8CD027FFF0FB54FA3CFAEDFA29" authorityName="Kaim, Jenkins & Waren" authorityYear="2008" box="[1208,1398,1507,1532]" class="Gastropoda" family="Provannidae" genus="Hokkaidoconcha" higherTaxonomySource="GBIF" kingdom="Animalia" pageId="7" pageNumber="358" phylum="Mollusca" rank="genus">
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<emphasis id="0F8F391DD027FFF0FB54FA3CFAEDFA29" box="[1208,1398,1507,1532]" italics="true" pageId="7" pageNumber="358">Hokkaidoconcha</emphasis>
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</taxonomicName>
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sp. is similar to juvenile specimens of
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<taxonomicName id="FAFB9E8CD027FFF0FDD6F9D8FCD5F9F5" authorityName="Nakrem" authorityYear="2017" box="[570,846,1543,1568]" class="Gastropoda" family="Rissoidae" genus="Hudlestoniella" higherTaxonomySource="GBIF" kingdom="Animalia" order="Littorinimorpha" pageId="7" pageNumber="358" phylum="Mollusca" rank="species" species="hammeri">
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<emphasis id="0F8F391DD027FFF0FDD6F9D8FCD5F9F5" box="[570,846,1543,1568]" italics="true" pageId="7" pageNumber="358">Hudlestoniella hammeri</emphasis>
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</taxonomicName>
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(see below), but it differs in having stronger and persistent spiral ornament (which at the size of
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<emphasis id="0F8F391DD027FFF0FD25F9F4FC0EF991" box="[713,917,1579,1604]" italics="true" pageId="7" pageNumber="358">Hokkaidonconcha</emphasis>
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sp. already fades away in
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<taxonomicName id="FAFB9E8CD027FFF0FB39F9F2FAFBF991" authorityName="Nakrem" authorityYear="2017" box="[1237,1376,1579,1604]" class="Gastropoda" family="Rissoidae" genus="Hudlestoniella" higherTaxonomySource="GBIF" kingdom="Animalia" order="Littorinimorpha" pageId="7" pageNumber="358" phylum="Mollusca" rank="species" species="hammeri">
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<emphasis id="0F8F391DD027FFF0FB39F9F2FAFBF991" box="[1237,1376,1579,1604]" italics="true" pageId="7" pageNumber="358">H. hammeri</emphasis>
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</taxonomicName>
|
||
) and opistocline to weakly opistocyrt axial ribs, rather than strongly opistocyrt ribs as observed in
|
||
<taxonomicName id="FAFB9E8CD027FFF0FB47F98EFAABF9BD" authorityName="Nakrem" authorityYear="2017" box="[1195,1328,1615,1640]" class="Gastropoda" family="Rissoidae" genus="Hudlestoniella" higherTaxonomySource="GBIF" kingdom="Animalia" order="Littorinimorpha" pageId="7" pageNumber="358" phylum="Mollusca" rank="species" species="hammeri">
|
||
<emphasis id="0F8F391DD027FFF0FB47F98EFAABF9BD" box="[1195,1328,1615,1640]" italics="true" pageId="7" pageNumber="358">H. hammeri</emphasis>
|
||
</taxonomicName>
|
||
.
|
||
</paragraph>
|
||
</subSubSection>
|
||
</treatment>
|
||
</document> |