517 lines
60 KiB
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517 lines
60 KiB
XML
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<mods:title id="FD0399DB6B24BD6DEFD32ABA68714BEA">A late Paleocene fauna from shallow-water chemosynthesis-based ecosystems, Spitsbergen, Svalbard</mods:title>
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<mods:namePart id="B87D805DEC1BF1F1E31479CCA7D220FB">Hryniewicz, Krzysztof</mods:namePart>
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<mods:namePart id="75375AF749237D4EFA315CEB8379959A">Bitner, Maria Aleksandra</mods:namePart>
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<mods:title id="CB6EBF72A566A444BD006EFD2F56B0DA">Acta Palaeontologica Polonica</mods:title>
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<treatment id="320C87F44649FFDBFCA5F923FEADDCDB" LSID="urn:lsid:plazi:treatment:320C87F44649FFDBFCA5F923FEADDCDB" httpUri="http://treatment.plazi.org/id/320C87F44649FFDBFCA5F923FEADDCDB" lastPageId="22" lastPageNumber="123" pageId="19" pageNumber="120">
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<taxonomicName id="7DA54D614649FFDEFCA5F923FB13D9A2" ID-CoL="7TNM5" authority="Hryniewicz" authorityName="Hryniewicz" authorityYear="2019" box="[808,1211,1757,1786]" class="Bivalvia" family="Xylophagaidae" genus="Xylophagella" kingdom="Animalia" order="Myida" pageId="19" pageNumber="120" phylum="Mollusca" rank="species" species="littlei" status="sp. nov.">
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<emphasis id="88D1EAF04649FFDEFCA5F923FBB7D9A2" box="[808,1055,1757,1786]" italics="true" pageId="19" pageNumber="120">Xylophagella littlei</emphasis>
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Hryniewicz
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<taxonomicNameLabel id="93E2578B4649FFDEFB49F920FA8ED9A2" box="[1220,1318,1758,1786]" pageId="19" pageNumber="120" rank="species">sp. nov.</taxonomicNameLabel>
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</paragraph>
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<subSubSection id="F2BF65694649FFDEFCA5F8F5FC33D878" box="[808,923,1803,1825]" pageId="19" pageNumber="120" type="description">
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<paragraph id="BA1A36E24649FFDEFCA5F8F5FC33D878" blockId="19.[808,923,1803,1825]" box="[808,923,1803,1825]" pageId="19" pageNumber="120">
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<figureCitation id="229E2A674649FFDEFCA5F8F5FCDED879" box="[808,886,1803,1825]" captionStart="Fig" captionStartId="20.[153,186,842,864]" captionTargetBox="[153,1533,163,818]" captionTargetId="figure-652@20.[205,1524,163,787]" captionTargetPageId="20" captionText="Fig. 16. Schematic illustration of a xylophagain bivalve Xylophagella littlei Hryniewicz sp. nov., from the upper Paleocene, Basilika Formation, Spitsbergen, Svalbard, showing the main morphological features discussed. Outer (A1) and inner (A2) views of right valve. Area above dashed line represents the morphological features we were unable to illustrate due to poor preservation." figureDoi="http://doi.org/10.5281/zenodo.10980932" httpUri="https://zenodo.org/record/10980932/files/figure.png" pageId="19" pageNumber="120">Figs. 16</figureCitation>
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,
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<figureCitation id="229E2A674649FFDEFC0DF8F5FC30D878" box="[896,920,1803,1824]" captionStart="Fig" captionStartId="21.[98,131,1738,1760]" captionTargetBox="[99,1481,161,1714]" captionTargetId="figure-8@21.[99,1481,161,1714]" captionTargetPageId="21" captionText="Fig. 17. Xylophagain bivalve Xylophagella littlei Hryniewicz sp. nov. from the upper Paleocene, Basilika Formation, Fossildalen, Spitsbergen, Svalbard. A. Holotype, ZPAL V.48/5, partial shell, left valve (A1), right valve with fragment of posterior adductor muscle scar (PAMS) (A2), dorsal view of both valves (A3), oblique ventral view showing partially overlapping shells (A4). B. Paratype, ZPAL V.48/6, partial shell, left valve, with trace of a ridge on the inner mold (B1), right valve (B2), dorsal view of both valves (B3), oblique posterior view showing internal surface of left valve internal mold with trace of a ridge on inner surface of shell (B4). C. Paratype, ZPAL V.48/7, partial shell, left valve (C1), right valve with fragment of posterior adductor muscle scar (PAMS) (C2), oblique anterior view (C3), enlarged fragment of prora with imprints of pallial muscles perpendicular to the shell edge, rasp composed of raised ridges covered with perpendicular lamellae (C4), enlarged fragment of prora, showing ornament of raised ridges covered with perpendicular lamellae (C5). D. Paratype, ZPAL V.48/8, internal mold, right valve showing trace of a ridge on the inner shell surface." figureDoi="http://doi.org/10.5281/zenodo.10980934" httpUri="https://zenodo.org/record/10980934/files/figure.png" pageId="19" pageNumber="120">17</figureCitation>
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.
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</paragraph>
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<subSubSection id="F2BF65694649FFDEFCA5F8CDFC49D8FF" pageId="19" pageNumber="120" type="reference_group">
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<paragraph id="BA1A36E24649FFDEFCA5F8CDFAFDD83E" blockId="19.[808,1365,1843,1894]" pageId="19" pageNumber="120">
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<treatmentCitationGroup id="9AB511CC4649FFDEFCA5F8CDFAFDD810" box="[808,1365,1843,1865]" pageId="19" pageNumber="120">
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1925
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<taxonomicName id="7DA54D614649FFDEFCD3F8CDFC6ED810" ID-CoL="7PL7C" authority="Hryniewicz & Amano & Bitner & Hagström & Kiel & Klompmaker & Mörs & Robins & Kaim, 2019" authorityName="Hryniewicz & Amano & Bitner & Hagström & Kiel & Klompmaker & Mörs & Robins & Kaim" authorityYear="2019" box="[862,966,1843,1864]" class="Bivalvia" family="Xylophagaidae" genus="Xylophaga" kingdom="Animalia" order="Myida" pageId="19" pageNumber="120" phylum="Mollusca" rank="genus" status="spec. n.">
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<emphasis id="88D1EAF04649FFDEFCD3F8CDFC6ED810" box="[862,966,1843,1864]" italics="true" pageId="19" pageNumber="120">Xylophaga</emphasis>
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</taxonomicName>
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<taxonomicNameLabel id="93E2578B4649FFDEFC41F8CDFBBDD810" box="[972,1045,1843,1865]" pageId="19" pageNumber="120" rank="species">spec. n.</taxonomicNameLabel>
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sp.;
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<treatmentCitation id="3B0410F34649FFDEFBCEF8CDFB7BD810" author="Hagg, R." box="[1091,1235,1843,1865]" page="48" pageId="19" pageNumber="120" year="1925">
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<bibRefCitation id="DE344B134649FFDEFBCEF8CDFB7BD810" author="Hagg, R." box="[1091,1235,1843,1865]" pageId="19" pageNumber="120" pagination="39 - 55" refId="ref29069" refString="Hagg, R. 1925. A new Tertiary fauna from Spitsbergen. Bulletin of the Geological Institution of the University of Uppsala 20: 39 - 55." type="journal article" year="1925">Hägg 1925: 48</bibRefCitation>
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, pl. 3: 13a–c.
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<treatmentCitationGroup id="9AB511CC4649FFDEFCA5F8AEFAFDD83E" box="[808,1365,1872,1894]" pageId="19" pageNumber="120">
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2016
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<taxonomicName id="7DA54D614649FFDEFCD3F8AEFC7DD83E" ID-CoL="7NFQN" authorityName="Lamarck" authorityYear="1809" box="[862,981,1872,1894]" class="Bivalvia" kingdom="Animalia" order="Myida" pageId="19" pageNumber="120" phylum="Mollusca" rank="superFamily" superFamily="Pholadoidea">Pholadoidea</taxonomicName>
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indet.;
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<bibRefCitation id="DE344B134649FFDEFB90F8AEFB54D83E" author="Hryniewicz, K. & Bitner, M. A. & Durska, E. & Hagstrom, J. & Hjalmarsdottir H. R. & Jenkins, R. G. & Little, C. T. S. & Miyajima, Y. & Nakrem, H. A. & Kaim, A." box="[1053,1276,1872,1894]" pageId="19" pageNumber="120" pagination="41 - 56" refId="ref29314" refString="Hryniewicz, K., Bitner, M. A., Durska, E., Hagstrom, J., Hjalmarsdottir H. R., Jenkins, R. G., Little, C. T. S., Miyajima, Y., Nakrem, H. A., and Kaim, A. 2016. Paleocene methane seep and wood-fall marine environments from Spitsbergen, Svalbard. Palaeogeography, Palaeoclimatology, Palaeoecology 462: 41 - 56." type="journal article" year="2016">Hryniewicz et al. 2016</bibRefCitation>
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: fig. 12c.
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</paragraph>
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<paragraph id="BA1A36E24649FFDEFCA5F88DFC49D8FF" blockId="19.[808,1481,1907,1959]" pageId="19" pageNumber="120">
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<emphasis id="88D1EAF04649FFDEFCA5F88DFC10D8D1" box="[808,952,1907,1929]" italics="true" pageId="19" pageNumber="120">ZooBank LSID</emphasis>
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:
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<uri id="CE343AE04649FFDEFC48F88DFC49D8FF" pageId="19" pageNumber="120">
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urn:lsid:zoobank.org:act:
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<uuid id="CE030C374649FFDEFB20F88DFC49D8FF" pageId="19" pageNumber="120">E8836D7A-EAA0-4522-AA 79-639B1E5E3629</uuid>
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</uri>
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</paragraph>
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<caption id="EEDA666A464EFFD9FF14FCB4FC11DCC0" ID-DOI="http://doi.org/10.5281/zenodo.10980932" ID-Zenodo-Dep="10980932" httpUri="https://zenodo.org/record/10980932/files/figure.png" pageId="20" pageNumber="121" startId="20.[153,186,842,864]" targetBox="[153,1533,163,818]" targetPageId="20" targetType="figure">
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<paragraph id="BA1A36E2464EFFD9FF14FCB4FC11DCC0" blockId="20.[151,1536,842,920]" pageId="20" pageNumber="121">
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Fig. 16. Schematic illustration of a xylophagain bivalve
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||
<taxonomicName id="7DA54D61464EFFD9FD34FCB4FC76DC38" authority="Hryniewicz" authorityName="Hryniewicz" authorityYear="2019" box="[697,990,842,864]" class="Bivalvia" family="Xylophagaidae" genus="Xylophagella" kingdom="Animalia" order="Myida" pageId="20" pageNumber="121" phylum="Mollusca" rank="species" species="littlei" status="sp. nov.">
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<emphasis id="88D1EAF0464EFFD9FD34FCB4FCC4DC07" box="[697,876,842,863]" italics="true" pageId="20" pageNumber="121">Xylophagella littlei</emphasis>
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Hryniewicz
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</taxonomicName>
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<taxonomicNameLabel id="93E2578B464EFFD9FC65FCB4FB9DDC07" box="[1000,1077,842,863]" pageId="20" pageNumber="121" rank="species">sp. nov.</taxonomicNameLabel>
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||
, from the upper Paleocene, Basilika Formation, Spitsbergen, Svalbard, showing the main morphological features discussed. Outer (A
|
||
<subScript id="262134A7464EFFD9FC12FC8EFC0FDC26" attach="left" box="[927,935,880,894]" fontSize="6" pageId="20" pageNumber="121">1</subScript>
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) and inner (A
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<subScript id="262134A7464EFFD9FBA5FC8EFB98DC26" attach="left" box="[1064,1072,880,894]" fontSize="6" pageId="20" pageNumber="121">2</subScript>
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) views of right valve. Area above dashed line represents the morphological features we were unable to illustrate due to poor preservation.
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</paragraph>
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</caption>
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<subSubSection id="F2BF6569464EFFDBFF1AFC46FEADDCDB" lastPageId="22" lastPageNumber="123" pageId="20" pageNumber="121" type="etymology">
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<paragraph id="BA1A36E2464EFFD9FF1AFC46FC8ADCB4" blockId="20.[151,824,952,1004]" pageId="20" pageNumber="121">
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<emphasis id="88D1EAF0464EFFD9FF1AFC46FF56DC95" box="[151,254,952,973]" italics="true" pageId="20" pageNumber="121">Etymology</emphasis>
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: In honour of the British palaeontologist Crispin T.S. Little, in recognition of his studies on fossil chemosynthesis-based faunas.
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</paragraph>
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<paragraph id="BA1A36E2464EFFD9FF1AFC07FED9DB3F" blockId="20.[151,824,1016,1127]" pageId="20" pageNumber="121">
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<emphasis id="88D1EAF0464EFFD9FF1AFC07FEB4DB55" box="[151,284,1016,1038]" italics="true" pageId="20" pageNumber="121">Type material</emphasis>
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||
:
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<materialsCitation id="0ACD3CBF464EFFD9FEA4FC06FD53DB57" box="[297,763,1016,1039]" collectionCode="ZPAL" pageId="20" pageNumber="121" specimenCount="1" typeStatus="holotype">
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<typeStatus id="651E8840464EFFD9FEA4FC06FE2EDB56" box="[297,390,1016,1038]" pageId="20" pageNumber="121" type="holotype">Holotype</typeStatus>
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:
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<collectionCode id="DCB4AE27464EFFD9FE1DFC07FE61DB56" box="[400,457,1017,1038]" country="Poland" httpUri="http://grbio.org/cool/yd4q-n37a" name="Zoological Institute of Paleobiology, Polish Academy of Sciences" pageId="20" pageNumber="121">ZPAL</collectionCode>
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V.48/5, partial shell (
|
||
<figureCitation id="229E2A67464EFFD9FD17FC06FD5CDB57" box="[666,756,1016,1039]" captionStart="Fig" captionStartId="21.[98,131,1738,1760]" captionTargetBox="[99,1481,161,1714]" captionTargetId="figure-8@21.[99,1481,161,1714]" captionTargetPageId="21" captionText="Fig. 17. Xylophagain bivalve Xylophagella littlei Hryniewicz sp. nov. from the upper Paleocene, Basilika Formation, Fossildalen, Spitsbergen, Svalbard. A. Holotype, ZPAL V.48/5, partial shell, left valve (A1), right valve with fragment of posterior adductor muscle scar (PAMS) (A2), dorsal view of both valves (A3), oblique ventral view showing partially overlapping shells (A4). B. Paratype, ZPAL V.48/6, partial shell, left valve, with trace of a ridge on the inner mold (B1), right valve (B2), dorsal view of both valves (B3), oblique posterior view showing internal surface of left valve internal mold with trace of a ridge on inner surface of shell (B4). C. Paratype, ZPAL V.48/7, partial shell, left valve (C1), right valve with fragment of posterior adductor muscle scar (PAMS) (C2), oblique anterior view (C3), enlarged fragment of prora with imprints of pallial muscles perpendicular to the shell edge, rasp composed of raised ridges covered with perpendicular lamellae (C4), enlarged fragment of prora, showing ornament of raised ridges covered with perpendicular lamellae (C5). D. Paratype, ZPAL V.48/8, internal mold, right valve showing trace of a ridge on the inner shell surface." figureDoi="http://doi.org/10.5281/zenodo.10980934" httpUri="https://zenodo.org/record/10980934/files/figure.png" pageId="20" pageNumber="121">Fig. 17A</figureCitation>
|
||
)
|
||
</materialsCitation>
|
||
.
|
||
<materialsCitation id="0ACD3CBF464EFFD9FC88FC07FEC4DB3F" collectionCode="ZPAL" country="Svalbard and Jan Mayen" county="Spitsbergen" location="upper Paleocene" municipality="Fossildalen" pageId="20" pageNumber="121" specimenCount="1" typeStatus="paratype">
|
||
<typeStatus id="651E8840464EFFD9FC88FC07FF65DB73" pageId="20" pageNumber="121" type="paratype">Paratypes</typeStatus>
|
||
:
|
||
<collectionCode id="DCB4AE27464EFFD9FF55FBE8FEB9DB73" box="[216,273,1046,1067]" country="Poland" httpUri="http://grbio.org/cool/yd4q-n37a" name="Zoological Institute of Paleobiology, Polish Academy of Sciences" pageId="20" pageNumber="121">ZPAL</collectionCode>
|
||
V.48/6–8, partial shells (
|
||
<collectionCode id="DCB4AE27464EFFD9FD8AFBE8FDEADB73" box="[519,578,1046,1067]" country="Poland" httpUri="http://grbio.org/cool/yd4q-n37a" name="Zoological Institute of Paleobiology, Polish Academy of Sciences" pageId="20" pageNumber="121">ZPAL</collectionCode>
|
||
V.48/6–7), internal mold (
|
||
<collectionCode id="DCB4AE27464EFFD9FF10FBCDFF70DB10" box="[157,216,1075,1096]" country="Poland" httpUri="http://grbio.org/cool/yd4q-n37a" name="Zoological Institute of Paleobiology, Polish Academy of Sciences" pageId="20" pageNumber="121">ZPAL</collectionCode>
|
||
V.48/8) (
|
||
<figureCitation id="229E2A67464EFFD9FEBBFBCDFE03DB11" box="[310,427,1075,1097]" captionStart="Fig" captionStartId="21.[98,131,1738,1760]" captionTargetBox="[99,1481,161,1714]" captionTargetId="figure-8@21.[99,1481,161,1714]" captionTargetPageId="21" captionText="Fig. 17. Xylophagain bivalve Xylophagella littlei Hryniewicz sp. nov. from the upper Paleocene, Basilika Formation, Fossildalen, Spitsbergen, Svalbard. A. Holotype, ZPAL V.48/5, partial shell, left valve (A1), right valve with fragment of posterior adductor muscle scar (PAMS) (A2), dorsal view of both valves (A3), oblique ventral view showing partially overlapping shells (A4). B. Paratype, ZPAL V.48/6, partial shell, left valve, with trace of a ridge on the inner mold (B1), right valve (B2), dorsal view of both valves (B3), oblique posterior view showing internal surface of left valve internal mold with trace of a ridge on inner surface of shell (B4). C. Paratype, ZPAL V.48/7, partial shell, left valve (C1), right valve with fragment of posterior adductor muscle scar (PAMS) (C2), oblique anterior view (C3), enlarged fragment of prora with imprints of pallial muscles perpendicular to the shell edge, rasp composed of raised ridges covered with perpendicular lamellae (C4), enlarged fragment of prora, showing ornament of raised ridges covered with perpendicular lamellae (C5). D. Paratype, ZPAL V.48/8, internal mold, right valve showing trace of a ridge on the inner shell surface." figureDoi="http://doi.org/10.5281/zenodo.10980934" httpUri="https://zenodo.org/record/10980934/files/figure.png" pageId="20" pageNumber="121">Fig. 17B–D</figureCitation>
|
||
) from the
|
||
<location id="BF7A6039464EFFD9FD9BFBCAFD11DB11" LSID="urn:lsid:plazi:treatment:320C87F44649FFDBFCA5F923FEADDCDB:BF7A6039464EFFD9FD9BFBCAFD11DB11" box="[534,697,1075,1097]" country="Svalbard and Jan Mayen" county="Spitsbergen" municipality="Fossildalen" name="upper Paleocene" pageId="20" pageNumber="121">upper Paleocene</location>
|
||
,
|
||
<collectingMunicipality id="5A7EAC98464EFFD9FD48FBCDFC9DDB11" box="[709,821,1075,1097]" pageId="20" pageNumber="121">Fossildalen</collectingMunicipality>
|
||
,
|
||
<collectingCounty id="537B4E6E464EFFD9FF1AFBAFFEA2DB3F" box="[151,266,1105,1127]" pageId="20" pageNumber="121">Spitsbergen</collectingCounty>
|
||
,
|
||
<collectingCountry id="C2B27672464EFFD9FE99FBAFFEC4DB3F" box="[276,364,1105,1127]" name="Svalbard and Jan Mayen" pageId="20" pageNumber="121">Svalbard</collectingCountry>
|
||
</materialsCitation>
|
||
.
|
||
</paragraph>
|
||
<paragraph id="BA1A36E2464EFFD9FF1AFB8AFDD9DBD1" blockId="20.[151,625,1139,1161]" box="[151,625,1139,1161]" pageId="20" pageNumber="121">
|
||
<materialsCitation id="0ACD3CBF464EFFD9FF1AFB8AFDC5DBD1" box="[151,621,1139,1161]" country="Svalbard and Jan Mayen" location="Fossildalen" municipality="Spitsbergen" pageId="20" pageNumber="121" specimenCount="1" typeStatus="holotype">
|
||
<emphasis id="88D1EAF0464EFFD9FF1AFB8AFEBADBD0" box="[151,274,1139,1161]" italics="true" pageId="20" pageNumber="121">
|
||
<typeStatus id="651E8840464EFFD9FF1AFB8AFF6CDBD1" box="[151,196,1140,1161]" pageId="20" pageNumber="121">Type</typeStatus>
|
||
locality
|
||
</emphasis>
|
||
:
|
||
<location id="BF7A6039464EFFD9FE92FB8DFE27DBD1" LSID="urn:lsid:plazi:treatment:320C87F44649FFDBFCA5F923FEADDCDB:BF7A6039464EFFD9FE92FB8DFE27DBD1" box="[287,399,1139,1161]" country="Svalbard and Jan Mayen" municipality="Spitsbergen" name="Fossildalen" pageId="20" pageNumber="121">Fossildalen</location>
|
||
,
|
||
<collectingMunicipality id="5A7EAC98464EFFD9FE15FB8DFDA3DBD1" box="[408,523,1139,1161]" pageId="20" pageNumber="121">Spitsbergen</collectingMunicipality>
|
||
,
|
||
<collectingCountry id="C2B27672464EFFD9FD98FB8DFDC5DBD1" box="[533,621,1139,1161]" name="Svalbard and Jan Mayen" pageId="20" pageNumber="121">Svalbard</collectingCountry>
|
||
</materialsCitation>
|
||
.
|
||
</paragraph>
|
||
<paragraph id="BA1A36E2464EFFD9FF1AFB69FDF1DB91" blockId="20.[151,824,1174,1225]" pageId="20" pageNumber="121">
|
||
<materialsCitation id="0ACD3CBF464EFFD9FF1AFB69FDFCDB91" county="upper Paleocene" location="Sunken" municipality="Basilika Formation" pageId="20" pageNumber="121" specimenCount="1" typeStatus="holotype">
|
||
<emphasis id="88D1EAF0464EFFD9FF1AFB69FEBCDBF3" box="[151,276,1174,1196]" italics="true" pageId="20" pageNumber="121">
|
||
<typeStatus id="651E8840464EFFD9FF1AFB69FF6CDBF4" box="[151,196,1175,1196]" pageId="20" pageNumber="121">Type</typeStatus>
|
||
horizon
|
||
</emphasis>
|
||
:
|
||
<location id="BF7A6039464EFFD9FEACFB68FEC1DBF4" LSID="urn:lsid:plazi:treatment:320C87F44649FFDBFCA5F923FEADDCDB:BF7A6039464EFFD9FEACFB68FEC1DBF4" box="[289,361,1174,1196]" county="upper Paleocene" municipality="Basilika Formation" name="Sunken" pageId="20" pageNumber="121">Sunken</location>
|
||
driftwood associated with cold seep carbonates from the
|
||
<collectingMunicipality id="5A7EAC98464EFFD9FF62FB4DFE03DB91" box="[239,427,1203,1225]" pageId="20" pageNumber="121">Basilika Formation</collectingMunicipality>
|
||
,
|
||
<collectingCounty id="537B4E6E464EFFD9FE39FB4AFDFCDB91" box="[436,596,1203,1225]" pageId="20" pageNumber="121">upper Paleocene</collectingCounty>
|
||
</materialsCitation>
|
||
.
|
||
</paragraph>
|
||
<paragraph id="BA1A36E2464EFFD9FF1AFB22FC99DA60" blockId="20.[151,824,1244,1337]" pageId="20" pageNumber="121">
|
||
<emphasis id="88D1EAF0464EFFD9FF1AFB22FF51DBAE" box="[151,249,1244,1270]" italics="true" pageId="20" pageNumber="121">Material</emphasis>
|
||
.—
|
||
<materialsCitation id="0ACD3CBF464EFFD9FE97FB22FC85DA60" collectionCode="ZPAL, NRM-PZ" country="Svalbard and Jan Mayen" location="Fossildalen" municipality="Spitsbergen" pageId="20" pageNumber="121" specimenCount="5">
|
||
<specimenCount id="ACA3FD6B464EFFD9FE97FB22FE66DBAE" box="[282,462,1244,1270]" count="5" pageId="20" pageNumber="121" type="generic">Five specimens</specimenCount>
|
||
, mostly partial shells, including four (
|
||
<collectionCode id="DCB4AE27464EFFD9FF5AFB03FEB6DA4F" box="[215,286,1277,1303]" country="Poland" httpUri="http://grbio.org/cool/yd4q-n37a" name="Zoological Institute of Paleobiology, Polish Academy of Sciences" pageId="20" pageNumber="121">ZPAL</collectionCode>
|
||
V.48/5–8) from the 2015 field season and one (
|
||
<collectionCode id="DCB4AE27464EFFD9FF12FAE1FEA5DA61" box="[159,269,1311,1337]" pageId="20" pageNumber="121">NRM-PZ</collectionCode>
|
||
Mo 149147);
|
||
<location id="BF7A6039464EFFD9FE2BFAE0FD80DA60" LSID="urn:lsid:plazi:treatment:320C87F44649FFDBFCA5F923FEADDCDB:BF7A6039464EFFD9FE2BFAE0FD80DA60" box="[422,552,1310,1336]" country="Svalbard and Jan Mayen" municipality="Spitsbergen" name="Fossildalen" pageId="20" pageNumber="121">Fossildalen</location>
|
||
,
|
||
<collectingMunicipality id="5A7EAC98464EFFD9FDBEFAE0FD12DA60" box="[563,698,1310,1336]" pageId="20" pageNumber="121">Spitsbergen</collectingMunicipality>
|
||
,
|
||
<collectingCountry id="C2B27672464EFFD9FD4BFAE0FC85DA60" box="[710,813,1310,1336]" name="Svalbard and Jan Mayen" pageId="20" pageNumber="121">Svalbard</collectingCountry>
|
||
</materialsCitation>
|
||
.
|
||
</paragraph>
|
||
<paragraph id="BA1A36E2464EFFD9FF1AFAB5FF72DAB3" blockId="20.[151,824,1354,1515]" pageId="20" pageNumber="121">
|
||
<emphasis id="88D1EAF0464EFFD9FF1AFAB5FEECDA3C" box="[151,324,1355,1380]" italics="true" pageId="20" pageNumber="121">Measurements.</emphasis>
|
||
—The
|
||
<typeStatus id="651E8840464EFFD9FE1DFAB4FE5BDA3C" box="[400,499,1354,1380]" pageId="20" pageNumber="121" type="holotype">holotype</typeStatus>
|
||
(
|
||
<collectionCode id="DCB4AE27464EFFD9FD8DFAB5FDEFDA3D" box="[512,583,1355,1381]" country="Poland" httpUri="http://grbio.org/cool/yd4q-n37a" name="Zoological Institute of Paleobiology, Polish Academy of Sciences" pageId="20" pageNumber="121">ZPAL</collectionCode>
|
||
V.48/5): W,
|
||
<quantity id="7D5D9B07464EFFD9FD5CFAB5FC9CDA3D" box="[721,820,1355,1381]" metricMagnitude="-2" metricUnit="m" metricValue="1.18" pageId="20" pageNumber="121" unit="mm" value="11.8">11.8 mm</quantity>
|
||
; H,
|
||
<quantity id="7D5D9B07464EFFD9FF35FA92FEA6DADE" box="[184,270,1388,1414]" metricMagnitude="-3" metricUnit="m" metricValue="9.7" pageId="20" pageNumber="121" unit="mm" value="9.7">9.7 mm</quantity>
|
||
; W,
|
||
<quantity id="7D5D9B07464EFFD9FEB0FA92FE08DADE" box="[317,416,1388,1414]" metricMagnitude="-2" metricUnit="m" metricValue="1.0699999999999998" pageId="20" pageNumber="121" unit="mm" value="10.7">10.7 mm</quantity>
|
||
. Dimensions range: L,
|
||
<quantity id="7D5D9B07464EFFD9FD12FA92FC9CDADE" box="[671,820,1388,1414]" metricMagnitude="-2" metricUnit="m" metricValue="1.4149999999999998" metricValueMax="2.02" metricValueMin="0.8099999999999999" pageId="20" pageNumber="121" unit="mm" value="14.149999999999999" valueMax="20.2" valueMin="8.1">8.1–20.2 mm</quantity>
|
||
; H,
|
||
<quantity id="7D5D9B07464EFFD9FF33FA73FEFEDAF0" box="[190,342,1421,1448]" metricMagnitude="-2" metricUnit="m" metricValue="1.2149999999999999" metricValueMax="1.69" metricValueMin="0.74" pageId="20" pageNumber="121" unit="mm" value="12.149999999999999" valueMax="16.9" valueMin="7.4">7.4–16.9 mm</quantity>
|
||
; W,
|
||
<quantity id="7D5D9B07464EFFD9FE02FA73FD83DAF0" box="[399,555,1421,1448]" metricMagnitude="-2" metricUnit="m" metricValue="1.6" metricValueMax="2.35" metricValueMin="0.85" pageId="20" pageNumber="121" unit="mm" value="16.0" valueMax="23.5" valueMin="8.5">8.5–23.5 mm</quantity>
|
||
; H/L, 0.84–0.98; W/L, 0.88–1.16; n = 5. See
|
||
<tableCitation id="F7270359464EFFD9FE0AFA51FE72DA91" box="[391,474,1455,1481]" captionStart="Table 2" captionStartId="20.[151,204,1664,1686]" captionTargetId="graphics-518@20.[151,824,1732,1951]" captionTargetPageId="20" captionText="Table 2. List of measured specimens of Xylophagella littlei Hryniewicz sp. nov. Abbreviations: H, height; L, lenght; W, width." pageId="20" pageNumber="121">Table 2</tableCitation>
|
||
for full list of measured specimens.
|
||
</paragraph>
|
||
<paragraph id="BA1A36E2464EFFD9FF1AFA03FD05D96F" blockId="20.[151,824,1532,1592]" pageId="20" pageNumber="121">
|
||
<emphasis id="88D1EAF0464EFFD9FF1AFA03FEBAD94E" box="[151,274,1533,1558]" italics="true" pageId="20" pageNumber="121">Diagnosis.</emphasis>
|
||
—A species of
|
||
<taxonomicName id="7DA54D61464EFFD9FE30FA02FDF9D94E" authorityName="Meek" authorityYear="1864" box="[445,593,1532,1558]" class="Bivalvia" family="Xylophagaidae" genus="Xylophagella" kingdom="Animalia" order="Myida" pageId="20" pageNumber="121" phylum="Mollusca" rank="genus">
|
||
<emphasis id="88D1EAF0464EFFD9FE30FA02FDF9D94E" box="[445,593,1532,1558]" italics="true" pageId="20" pageNumber="121">Xylophagella</emphasis>
|
||
</taxonomicName>
|
||
with inner posterior ridge strong dorsally but diminishing ventrally.
|
||
</paragraph>
|
||
<paragraph id="BA1A36E2464EFFD9FF1AF9B4FAF4D983" blockId="20.[151,824,1609,1636]" lastBlockId="20.[862,1535,951,1755]" pageId="20" pageNumber="121">
|
||
<emphasis id="88D1EAF0464EFFD9FF1AF9B4FE8DD93B" box="[151,293,1610,1635]" italics="true" pageId="20" pageNumber="121">Description.</emphasis>
|
||
—Shell of normal size for genus (L ≤
|
||
<quantity id="7D5D9B07464EFFD9FD4BF9B4FC84D93C" box="[710,812,1610,1636]" metricMagnitude="-2" metricUnit="m" metricValue="2.02" pageId="20" pageNumber="121" unit="mm" value="20.2">20.2 mm</quantity>
|
||
), thin, globular. Ventral margin convex, deepest around umbonal-ventral groove, rising posteriorly. Faint posteroventral angulation present; posterior margin rounded. Anterior gape wide, posterior gape narrower than anterior one. Prora triangular, occupying ca. 40% of height of anterior slope. Anterior slope short, well-demarcated from prora but poorly demarcated from disc; its dimensions difficult to ascertain. Rasp consists of oblique ridges covered with transverse lamellae; ridges sub-parallel to lower margin of prora, and to anterior margin of anterior slope. Obtuse angle of ridges between prora and anterior slope section of rasp forms well-defined line separating the two shell regions. This angle causes shell thickening, forming internal ridge. Rasp diminishes posteriorly but remains present until umbonal-ventral groove. Umbonal-ventral groove relatively wide, bounded anteriorly and posteriorly by shell thickening, forming two outer and inner ridges. Faint flat-topped outer ridge amidst umbonal-ventral groove. Section of shell posterior to umbonal-ventral groove ornamented with low commarginal folds superimposed on fine, commarginal growth lines. Internal ridge from umbo to posteroventral shell margin prominent dorsally, diminishing ventrally, disappearing completely from later growth stages. Faint muscle scars visible perpendicular to anterior margin; posterior adductor muscle scar faint, formed by multiple oblique attachment scars.
|
||
</paragraph>
|
||
<caption id="EEDA666A464EFFD9FF1AF97EFD09D9EB" pageId="20" pageNumber="121" startId="20.[151,204,1664,1686]" targetBox="[159,813,1740,1949]" targetIsTable="true" targetPageId="20" targetType="table">
|
||
<paragraph id="BA1A36E2464EFFD9FF1AF97EFD09D9EB" blockId="20.[151,824,1664,1715]" pageId="20" pageNumber="121">
|
||
Table 2. List of measured specimens of
|
||
<taxonomicName id="7DA54D61464EFFD9FD81F97EFC90D9CE" authority="Hryniewicz" authorityName="Hryniewicz" authorityYear="2019" box="[524,824,1664,1686]" class="Bivalvia" family="Xylophagaidae" genus="Xylophagella" kingdom="Animalia" order="Myida" pageId="20" pageNumber="121" phylum="Mollusca" rank="species" species="littlei" status="sp. nov.">
|
||
<emphasis id="88D1EAF0464EFFD9FD81F97EFD6CD9CD" box="[524,708,1664,1685]" italics="true" pageId="20" pageNumber="121">Xylophagella littlei</emphasis>
|
||
Hryniewicz
|
||
</taxonomicName>
|
||
<taxonomicNameLabel id="93E2578B464EFFD9FF1AF960FF4AD9EB" box="[151,226,1694,1715]" pageId="20" pageNumber="121" rank="species">sp. nov.</taxonomicNameLabel>
|
||
Abbreviations: H, height; L, lenght; W, width.
|
||
</paragraph>
|
||
</caption>
|
||
<paragraph id="BA1A36E2464EFFD9FF6BF924FC83D8C5" pageId="20" pageNumber="121">
|
||
<table id="C8A5C442464E0032FF12F932FC85D8C5" box="[159,813,1740,1949]" colsContinueFrom="11.[816,1463,236,730]" gridcols="6" gridrows="6" pageId="20" pageNumber="121">
|
||
<tr id="049534A0464E0032FF12F932FC85D9A7" box="[159,813,1740,1791]" gridrow="0" pageId="20" pageNumber="121">
|
||
<th id="47445DDC464E0032FF12F932FE2FD9A7" box="[159,391,1740,1791]" gridcol="0" gridrow="0" pageId="20" pageNumber="121">Specimen</th>
|
||
<th id="47445DDC464E0032FE29F932FE40D9A7" box="[420,488,1740,1791]" gridcol="1" gridrow="0" pageId="20" pageNumber="121">Length (mm)</th>
|
||
<th id="47445DDC464E0032FD8BF932FDEFD9A7" box="[518,583,1740,1791]" gridcol="2" gridrow="0" pageId="20" pageNumber="121">Height (mm)</th>
|
||
<th id="47445DDC464E0032FDEEF932FD25D9A7" box="[611,653,1740,1791]" gridcol="3" gridrow="0" pageId="20" pageNumber="121">H/L</th>
|
||
<th id="47445DDC464E0032FD26F932FD4ED9A7" box="[683,742,1740,1791]" gridcol="4" gridrow="0" pageId="20" pageNumber="121">Width (mm)</th>
|
||
<th id="47445DDC464E0032FC8CF932FC85D9A7" box="[769,813,1740,1791]" gridcol="5" gridrow="0" pageId="20" pageNumber="121">W/L</th>
|
||
</tr>
|
||
<tr id="049534A0464E0032FF12F8F6FC85D846" box="[159,813,1800,1822]" gridrow="1" pageId="20" pageNumber="121">
|
||
<th id="47445DDC464E0032FF12F8F6FE2FD846" box="[159,391,1800,1822]" gridcol="0" gridrow="1" pageId="20" pageNumber="121">ZPAL V.48/5 (holotype)</th>
|
||
<td id="47445DDC464E0032FE29F8F6FE40D846" box="[420,488,1800,1822]" gridcol="1" gridrow="1" pageId="20" pageNumber="121">11.9</td>
|
||
<td id="47445DDC464E0032FD8BF8F6FDEFD846" box="[518,583,1800,1822]" gridcol="2" gridrow="1" pageId="20" pageNumber="121">9.7</td>
|
||
<td id="47445DDC464E0032FDEEF8F6FD25D846" box="[611,653,1800,1822]" gridcol="3" gridrow="1" pageId="20" pageNumber="121">0.86</td>
|
||
<td id="47445DDC464E0032FD26F8F6FD4ED846" box="[683,742,1800,1822]" gridcol="4" gridrow="1" pageId="20" pageNumber="121">10.5</td>
|
||
<td id="47445DDC464E0032FC8CF8F6FC85D846" box="[769,813,1800,1822]" gridcol="5" gridrow="1" pageId="20" pageNumber="121">0.88</td>
|
||
</tr>
|
||
<tr id="049534A0464E0032FF12F8D6FC85D866" box="[159,813,1832,1854]" gridrow="2" pageId="20" pageNumber="121">
|
||
<th id="47445DDC464E0032FF12F8D6FE2FD866" box="[159,391,1832,1854]" gridcol="0" gridrow="2" pageId="20" pageNumber="121">ZPAL V.48/6 (paratype)</th>
|
||
<td id="47445DDC464E0032FE29F8D6FE40D866" box="[420,488,1832,1854]" gridcol="1" gridrow="2" pageId="20" pageNumber="121">9.5</td>
|
||
<td id="47445DDC464E0032FD8BF8D6FDEFD866" box="[518,583,1832,1854]" gridcol="2" gridrow="2" pageId="20" pageNumber="121">9.3</td>
|
||
<td id="47445DDC464E0032FDEEF8D6FD25D866" box="[611,653,1832,1854]" gridcol="3" gridrow="2" pageId="20" pageNumber="121">0.98</td>
|
||
<td id="47445DDC464E0032FD26F8D6FD4ED866" box="[683,742,1832,1854]" gridcol="4" gridrow="2" pageId="20" pageNumber="121">9.6</td>
|
||
<td id="47445DDC464E0032FC8CF8D6FC85D866" box="[769,813,1832,1854]" gridcol="5" gridrow="2" pageId="20" pageNumber="121">1.01</td>
|
||
</tr>
|
||
<tr id="049534A0464E0032FF12F8B6FC85D806" box="[159,813,1864,1886]" gridrow="3" pageId="20" pageNumber="121">
|
||
<th id="47445DDC464E0032FF12F8B6FE2FD806" box="[159,391,1864,1886]" gridcol="0" gridrow="3" pageId="20" pageNumber="121">ZPAL V.48/7 (paratype)</th>
|
||
<td id="47445DDC464E0032FE29F8B6FE40D806" box="[420,488,1864,1886]" gridcol="1" gridrow="3" pageId="20" pageNumber="121">9.6</td>
|
||
<td id="47445DDC464E0032FD8BF8B6FDEFD806" box="[518,583,1864,1886]" gridcol="2" gridrow="3" pageId="20" pageNumber="121">9.3</td>
|
||
<td id="47445DDC464E0032FDEEF8B6FD25D806" box="[611,653,1864,1886]" gridcol="3" gridrow="3" pageId="20" pageNumber="121">0.97</td>
|
||
<td id="47445DDC464E0032FD26F8B6FD4ED806" box="[683,742,1864,1886]" gridcol="4" gridrow="3" pageId="20" pageNumber="121">10.3</td>
|
||
<td id="47445DDC464E0032FC8CF8B6FC85D806" box="[769,813,1864,1886]" gridcol="5" gridrow="3" pageId="20" pageNumber="121">1.07</td>
|
||
</tr>
|
||
<tr id="049534A0464E0032FF12F899FC85D826" box="[159,813,1895,1918]" gridrow="4" pageId="20" pageNumber="121">
|
||
<th id="47445DDC464E0032FF12F899FE2FD826" box="[159,391,1895,1918]" gridcol="0" gridrow="4" pageId="20" pageNumber="121">ZPAL V.48/8 (paratype)</th>
|
||
<td id="47445DDC464E0032FE29F899FE40D826" box="[420,488,1895,1918]" gridcol="1" gridrow="4" pageId="20" pageNumber="121">8.1</td>
|
||
<td id="47445DDC464E0032FD8BF899FDEFD826" box="[518,583,1895,1918]" gridcol="2" gridrow="4" pageId="20" pageNumber="121">7.4</td>
|
||
<td id="47445DDC464E0032FDEEF899FD25D826" box="[611,653,1895,1918]" gridcol="3" gridrow="4" pageId="20" pageNumber="121">0.91</td>
|
||
<td id="47445DDC464E0032FD26F899FD4ED826" box="[683,742,1895,1918]" gridcol="4" gridrow="4" pageId="20" pageNumber="121">8.5</td>
|
||
<td id="47445DDC464E0032FC8CF899FC85D826" box="[769,813,1895,1918]" gridcol="5" gridrow="4" pageId="20" pageNumber="121">1.04</td>
|
||
</tr>
|
||
<tr id="049534A0464E0032FF12F879FC85D8C5" box="[159,813,1927,1949]" gridrow="5" pageId="20" pageNumber="121">
|
||
<th id="47445DDC464E0032FF12F879FE2FD8C5" box="[159,391,1927,1949]" gridcol="0" gridrow="5" pageId="20" pageNumber="121">NRM-PZ Mo 149147</th>
|
||
<td id="47445DDC464E0032FE29F879FE40D8C5" box="[420,488,1927,1949]" gridcol="1" gridrow="5" pageId="20" pageNumber="121">20.2</td>
|
||
<td id="47445DDC464E0032FD8BF879FDEFD8C5" box="[518,583,1927,1949]" gridcol="2" gridrow="5" pageId="20" pageNumber="121">16.9</td>
|
||
<td id="47445DDC464E0032FDEEF879FD25D8C5" box="[611,653,1927,1949]" gridcol="3" gridrow="5" pageId="20" pageNumber="121">0.84</td>
|
||
<td id="47445DDC464E0032FD26F879FD4ED8C5" box="[683,742,1927,1949]" gridcol="4" gridrow="5" pageId="20" pageNumber="121">23.5</td>
|
||
<td id="47445DDC464E0032FC8CF879FC85D8C5" box="[769,813,1927,1949]" gridcol="5" gridrow="5" pageId="20" pageNumber="121">1.16</td>
|
||
</tr>
|
||
</table>
|
||
</paragraph>
|
||
<paragraph id="BA1A36E2464EFFDBFCD3F915FE16DDA1" blockId="20.[862,1535,1771,1960]" lastBlockId="22.[151,824,158,761]" lastPageId="22" lastPageNumber="123" pageId="20" pageNumber="121">
|
||
<emphasis id="88D1EAF0464EFFD9FCD3F915FC4CD85E" box="[862,996,1771,1798]" italics="true" pageId="20" pageNumber="121">Remarks.—</emphasis>
|
||
<taxonomicName id="7DA54D61464EFFD9FC6EF915FAE2D85D" authority="Hryniewicz" authorityName="Hryniewicz" authorityYear="2019" box="[995,1354,1771,1797]" class="Bivalvia" family="Xylophagaidae" genus="Xylophagella" kingdom="Animalia" order="Myida" pageId="20" pageNumber="121" phylum="Mollusca" rank="species" species="littlei" status="sp. nov.">
|
||
<emphasis id="88D1EAF0464EFFD9FC6EF915FB14D85D" box="[995,1212,1771,1797]" italics="true" pageId="20" pageNumber="121">Xylophagella littlei</emphasis>
|
||
Hryniewicz
|
||
</taxonomicName>
|
||
<taxonomicNameLabel id="93E2578B464EFFD9FAD9F912FA03D85E" box="[1364,1451,1772,1798]" pageId="20" pageNumber="121" rank="species">sp. nov.</taxonomicNameLabel>
|
||
differs from
|
||
<taxonomicName id="7DA54D61464EFFD9FC2FF8F3FB78D87E" authority="(Stanton, 1901)" baseAuthorityName="Stanton" baseAuthorityYear="1901" box="[930,1232,1804,1830]" class="Bivalvia" family="Xylophagaidae" genus="Xylophagella" kingdom="Animalia" order="Myida" pageId="20" pageNumber="121" phylum="Mollusca" rank="species" species="dubius">
|
||
<emphasis id="88D1EAF0464EFFD9FC2FF8F3FC1BD87E" box="[930,947,1805,1830]" italics="true" pageId="20" pageNumber="121">X</emphasis>
|
||
.
|
||
<emphasis id="88D1EAF0464EFFD9FC4BF8F2FBBAD87E" box="[966,1042,1804,1830]" italics="true" pageId="20" pageNumber="121">dubius</emphasis>
|
||
(
|
||
<bibRefCitation id="DE344B13464EFFD9FBAAF8F2FB60D87E" author="Stanton, T. W." box="[1063,1224,1804,1830]" pageId="20" pageNumber="121" pagination="1 - 43" refId="ref36445" refString="Stanton, T. W. 1901. The marine Cretaceous invertebrates. In: W. B. Scott (ed.), Report of the Princeton University to Patagonia, 1896 - 1899, Paleontology 1, Part. 1, Vol. 4, 1 - 43. Princeton University Press and Schweizerbart, Princeton and Stuttgart." type="journal article" year="1901">Stanton, 1901</bibRefCitation>
|
||
)
|
||
</taxonomicName>
|
||
by its smaller prora and convex ventral margin (as opposed to straight to concave in
|
||
<taxonomicName id="7DA54D61464EFFD9FCD3F8B3FC61D83E" baseAuthorityName="Stanton" baseAuthorityYear="1901" box="[862,969,1868,1895]" class="Bivalvia" family="Xylophagaidae" genus="Xylophagella" kingdom="Animalia" order="Myida" pageId="20" pageNumber="121" phylum="Mollusca" rank="species" species="dubius">
|
||
<emphasis id="88D1EAF0464EFFD9FCD3F8B3FCC7D83E" box="[862,879,1869,1894]" italics="true" pageId="20" pageNumber="121">X</emphasis>
|
||
.
|
||
<emphasis id="88D1EAF0464EFFD9FCF2F8B2FC61D83E" box="[895,969,1868,1894]" italics="true" pageId="20" pageNumber="121">dubius</emphasis>
|
||
</taxonomicName>
|
||
).
|
||
<taxonomicName id="7DA54D61464EFFD9FC6FF8B2FB13D83E" authorityName="Hryniewicz" authorityYear="2019" box="[994,1211,1868,1894]" class="Bivalvia" family="Xylophagaidae" genus="Xylophagella" kingdom="Animalia" order="Myida" pageId="20" pageNumber="121" phylum="Mollusca" rank="species" species="littlei">
|
||
<emphasis id="88D1EAF0464EFFD9FC6FF8B2FB13D83E" box="[994,1211,1868,1894]" italics="true" pageId="20" pageNumber="121">Xylophagella littlei</emphasis>
|
||
</taxonomicName>
|
||
also has a more posteriorly elongate shell compared to the roughly circular shell of
|
||
<taxonomicName id="7DA54D61464EFFD9FA6AF890FC01D8FF" baseAuthorityName="Stanton" baseAuthorityYear="1901" class="Bivalvia" family="Xylophagaidae" genus="Xylophagella" kingdom="Animalia" order="Myida" pageId="20" pageNumber="121" phylum="Mollusca" rank="species" species="dubius">
|
||
<emphasis id="88D1EAF0464EFFD9FA6AF890FA50D8DF" box="[1511,1528,1902,1927]" italics="true" pageId="20" pageNumber="121">X</emphasis>
|
||
.
|
||
<emphasis id="88D1EAF0464EFFD9FCD3F873FC01D8FF" box="[862,937,1933,1959]" italics="true" pageId="20" pageNumber="121">dubius</emphasis>
|
||
</taxonomicName>
|
||
. However, we have seen only drawings of the latter species (
|
||
<bibRefCitation id="DE344B13464CFFDBFF7AFF60FE25DFE0" author="Stanton, T. W." box="[247,397,158,184]" pageId="22" pageNumber="123" pagination="1 - 43" refId="ref36445" refString="Stanton, T. W. 1901. The marine Cretaceous invertebrates. In: W. B. Scott (ed.), Report of the Princeton University to Patagonia, 1896 - 1899, Paleontology 1, Part. 1, Vol. 4, 1 - 43. Princeton University Press and Schweizerbart, Princeton and Stuttgart." type="journal article" year="1901">Stanton 1901</bibRefCitation>
|
||
: pl. 6: 5–8), and a more detailed comparison of the two species is not possible.
|
||
<taxonomicName id="7DA54D61464CFFDBFDEEFF40FC90DF80" authorityName="Hryniewicz" authorityYear="2019" box="[611,824,190,216]" class="Bivalvia" family="Xylophagaidae" genus="Xylophagella" kingdom="Animalia" order="Myida" pageId="22" pageNumber="123" phylum="Mollusca" rank="species" species="littlei">
|
||
<emphasis id="88D1EAF0464CFFDBFDEEFF40FC90DF80" box="[611,824,190,216]" italics="true" pageId="22" pageNumber="123">Xylophagella littlei</emphasis>
|
||
</taxonomicName>
|
||
has a convex ventral margin with the deepest point around the umbonal-ventral groove, as opposed to a straight ventral margin in
|
||
<taxonomicName id="7DA54D61464CFFDBFE9DFEE1FDA5DE60" authority="Casey, 1961" authorityName="Casey" authorityYear="1961" box="[272,525,286,312]" class="Bivalvia" family="Xylophagaidae" genus="Xylophagella" kingdom="Animalia" order="Myida" pageId="22" pageNumber="123" phylum="Mollusca" rank="species" species="zonata">
|
||
<emphasis id="88D1EAF0464CFFDBFE9DFEE1FED4DE60" box="[272,380,287,312]" italics="true" pageId="22" pageNumber="123">X. zonata</emphasis>
|
||
<bibRefCitation id="DE344B13464CFFDBFE08FEE0FDA5DE60" author="Casey, R." box="[389,525,286,312]" pageId="22" pageNumber="123" pagination="487 - 621" refId="ref26376" refString="Casey, R. 1961. The stratigraphical palaeontology of the Lower Greensand. Palaeontology 3: 487 - 621." type="journal article" year="1961">Casey, 1961</bibRefCitation>
|
||
</taxonomicName>
|
||
(Woods 1909: pl. 38: 17).
|
||
<taxonomicName id="7DA54D61464CFFDBFF1AFEC0FD74DE01" authority="(Meek and Hayden, 1858)" baseAuthorityName="Meek and Hayden" baseAuthorityYear="1858" box="[151,732,318,345]" class="Bivalvia" family="Xylophagaidae" genus="Xylophagella" kingdom="Animalia" order="Myida" pageId="22" pageNumber="123" phylum="Mollusca" rank="species" species="elegantula">
|
||
<emphasis id="88D1EAF0464CFFDBFF1AFEC0FE03DE00" box="[151,427,318,344]" italics="true" pageId="22" pageNumber="123">Xylophagella elegantula</emphasis>
|
||
(
|
||
<bibRefCitation id="DE344B13464CFFDBFE31FEC0FD7DDE01" author="Meek, F. B. & Hayden, F. V." box="[444,725,318,345]" pageId="22" pageNumber="123" pagination="117 - 148" refId="ref32716" refString="Meek, F. B. and Hayden, F. V. 1858. Descriptions of new genera of fossils, collected by Dr. F. V. Hayden, in Nebraska territory, under the direction of Lieut. G. K. Warren, US Topographical Engineer; with some remarks on the Tertiary and Cretaceous formations of the north-west, and parallelism of the latter with those of other portions of the United States and Territories. Proceedings of the Academy of Natural Sciences of Philadelphia (for 1857) 9: 117 - 148." type="journal article" year="1858">Meek and Hayden, 1858</bibRefCitation>
|
||
)
|
||
</taxonomicName>
|
||
has not been figured to our knowledge; therefore, our comparison has to rely on the description (
|
||
<bibRefCitation id="DE344B13464CFFDBFE66FE80FC84DEC1" author="Meek, F. B. & Hayden, F. V." box="[491,812,382,409]" pageId="22" pageNumber="123" pagination="117 - 148" refId="ref32716" refString="Meek, F. B. and Hayden, F. V. 1858. Descriptions of new genera of fossils, collected by Dr. F. V. Hayden, in Nebraska territory, under the direction of Lieut. G. K. Warren, US Topographical Engineer; with some remarks on the Tertiary and Cretaceous formations of the north-west, and parallelism of the latter with those of other portions of the United States and Territories. Proceedings of the Academy of Natural Sciences of Philadelphia (for 1857) 9: 117 - 148." type="journal article" year="1858">Meek and Hayden 1858: 141</bibRefCitation>
|
||
), which indicates that the anterior gape of
|
||
<taxonomicName id="7DA54D61464CFFDBFDE4FE61FD57DEE0" baseAuthorityName="Meek and Hayden" baseAuthorityYear="1858" box="[617,767,414,441]" class="Bivalvia" family="Xylophagaidae" genus="Xylophagella" kingdom="Animalia" order="Myida" pageId="22" pageNumber="123" phylum="Mollusca" rank="species" species="elegantula">
|
||
<emphasis id="88D1EAF0464CFFDBFDE4FE61FDD2DEE0" box="[617,634,415,440]" italics="true" pageId="22" pageNumber="123">X</emphasis>
|
||
.
|
||
<emphasis id="88D1EAF0464CFFDBFD05FE60FD57DEE0" box="[648,767,414,440]" italics="true" pageId="22" pageNumber="123">elegantula</emphasis>
|
||
</taxonomicName>
|
||
covers ~33% of the shell length. The gape is larger in
|
||
<taxonomicName id="7DA54D61464CFFDBFD4BFE41FF6BDEA0" baseAuthorityName="Meek and Hayden" baseAuthorityYear="1858" class="Bivalvia" family="Xylophagaidae" genus="Xylophagella" kingdom="Animalia" order="Myida" pageId="22" pageNumber="123" phylum="Mollusca" rank="species" species="elegantula">
|
||
<emphasis id="88D1EAF0464CFFDBFD4BFE41FD7FDE80" box="[710,727,447,472]" italics="true" pageId="22" pageNumber="123">X</emphasis>
|
||
.
|
||
<emphasis id="88D1EAF0464CFFDBFD69FE40FF6BDEA0" italics="true" pageId="22" pageNumber="123">elegantula</emphasis>
|
||
</taxonomicName>
|
||
than in
|
||
<taxonomicName id="7DA54D61464CFFDBFEACFE21FED4DEA0" authorityName="Hryniewicz" authorityYear="2019" box="[289,380,478,505]" class="Bivalvia" family="Xylophagaidae" genus="Xylophagella" kingdom="Animalia" order="Myida" pageId="22" pageNumber="123" phylum="Mollusca" rank="species" species="littlei">
|
||
<emphasis id="88D1EAF0464CFFDBFEACFE21FE9ADEA0" box="[289,306,479,504]" italics="true" pageId="22" pageNumber="123">X</emphasis>
|
||
.
|
||
<emphasis id="88D1EAF0464CFFDBFECCFE20FED4DEA0" box="[321,380,478,504]" italics="true" pageId="22" pageNumber="123">littlei</emphasis>
|
||
</taxonomicName>
|
||
, where it occupies 20–25% of the shell length. The description of
|
||
<taxonomicName id="7DA54D61464CFFDBFE44FE01FDC9DD40" baseAuthorityName="Meek and Hayden" baseAuthorityYear="1858" box="[457,609,510,537]" class="Bivalvia" family="Xylophagaidae" genus="Xylophagella" kingdom="Animalia" order="Myida" pageId="22" pageNumber="123" phylum="Mollusca" rank="species" species="elegantula">
|
||
<emphasis id="88D1EAF0464CFFDBFE44FE01FE72DD40" box="[457,474,511,536]" italics="true" pageId="22" pageNumber="123">X</emphasis>
|
||
.
|
||
<emphasis id="88D1EAF0464CFFDBFE67FE00FDC9DD40" box="[490,609,510,536]" italics="true" pageId="22" pageNumber="123">elegantula</emphasis>
|
||
</taxonomicName>
|
||
also indicates that the umbo placed nearly in the middle of the shell length, whereas it is located anteriorly in
|
||
<taxonomicName id="7DA54D61464CFFDBFDBFFDC1FD39DD01" authorityName="Hryniewicz" authorityYear="2019" box="[562,657,575,601]" class="Bivalvia" family="Xylophagaidae" genus="Xylophagella" kingdom="Animalia" order="Myida" pageId="22" pageNumber="123" phylum="Mollusca" rank="species" species="littlei">
|
||
<emphasis id="88D1EAF0464CFFDBFDBFFDC1FD39DD01" box="[562,657,575,601]" italics="true" pageId="22" pageNumber="123">X. littlei</emphasis>
|
||
</taxonomicName>
|
||
.
|
||
<taxonomicName id="7DA54D61464CFFDBFD29FDC1FF7ADD21" authorityName="Hryniewicz" authorityYear="2019" class="Bivalvia" family="Xylophagaidae" genus="Xylophagella" kingdom="Animalia" order="Myida" pageId="22" pageNumber="123" phylum="Mollusca" rank="species" species="littlei">
|
||
<emphasis id="88D1EAF0464CFFDBFD29FDC1FF7ADD21" italics="true" pageId="22" pageNumber="123">Xylophagella littlei</emphasis>
|
||
</taxonomicName>
|
||
is more elongate posteriorly as opposed to
|
||
<taxonomicName id="7DA54D61464CFFDBFD35FDA1FEB2DDC1" authority="Kelly, 1988" authorityName="Kelly" authorityYear="1988" class="Bivalvia" family="Xylophagaidae" genus="Xylophagella" kingdom="Animalia" order="Myida" pageId="22" pageNumber="123" phylum="Mollusca" rank="species" species="truncata">
|
||
<emphasis id="88D1EAF0464CFFDBFD35FDA1FC90DD20" box="[696,824,607,632]" italics="true" pageId="22" pageNumber="123">X. truncata</emphasis>
|
||
<bibRefCitation id="DE344B13464CFFDBFF1AFD81FEB2DDC1" author="Kelly, S. R. A." box="[151,282,639,665]" pageId="22" pageNumber="123" pagination="341 - 372" refId="ref29960" refString="Kelly, S. R. A. 1988. Cretaceous wood-boring bivalves from western Antarctica with a review of the Mesozoic Pholadidae. Palaeontology 31: 341 - 372." type="journal article" year="1988">Kelly, 1988</bibRefCitation>
|
||
</taxonomicName>
|
||
, and has a rounded posterior margin as opposed to truncated in
|
||
<taxonomicName id="7DA54D61464CFFDBFEC4FD5EFE62DDE1" authorityName="Kelly" authorityYear="1988" box="[329,458,671,697]" class="Bivalvia" family="Xylophagaidae" genus="Xylophagella" kingdom="Animalia" order="Myida" pageId="22" pageNumber="123" phylum="Mollusca" rank="species" species="truncata">
|
||
<emphasis id="88D1EAF0464CFFDBFEC4FD5EFEF2DDE1" box="[329,346,672,697]" italics="true" pageId="22" pageNumber="123">X</emphasis>
|
||
.
|
||
<emphasis id="88D1EAF0464CFFDBFEE4FD5EFE62DDE1" box="[361,458,672,697]" italics="true" pageId="22" pageNumber="123">truncata</emphasis>
|
||
</taxonomicName>
|
||
. The inner umbonal ridge of
|
||
<taxonomicName id="7DA54D61464CFFDBFCADFD5EFF7ADD81" authorityName="Hryniewicz" authorityYear="2019" class="Bivalvia" family="Xylophagaidae" genus="Xylophagella" kingdom="Animalia" order="Myida" pageId="22" pageNumber="123" phylum="Mollusca" rank="species" species="littlei">
|
||
<emphasis id="88D1EAF0464CFFDBFCADFD5EFC99DDE1" box="[800,817,672,697]" italics="true" pageId="22" pageNumber="123">X</emphasis>
|
||
.
|
||
<emphasis id="88D1EAF0464CFFDBFF1AFD41FF7ADD81" box="[151,210,703,729]" italics="true" pageId="22" pageNumber="123">littlei</emphasis>
|
||
</taxonomicName>
|
||
diminishes towards the ventral margin, whereas it is continuous in
|
||
<taxonomicName id="7DA54D61464CFFDBFEBAFD1EFE1FDDA1" authorityName="Kelly" authorityYear="1988" box="[311,439,735,761]" class="Bivalvia" family="Xylophagaidae" genus="Xylophagella" kingdom="Animalia" order="Myida" pageId="22" pageNumber="123" phylum="Mollusca" rank="species" species="truncata">
|
||
<emphasis id="88D1EAF0464CFFDBFEBAFD1EFEE0DDA1" box="[311,328,736,761]" italics="true" pageId="22" pageNumber="123">X</emphasis>
|
||
.
|
||
<emphasis id="88D1EAF0464CFFDBFEDBFD1EFE1FDDA1" box="[342,439,736,761]" italics="true" pageId="22" pageNumber="123">truncata</emphasis>
|
||
</taxonomicName>
|
||
.
|
||
</paragraph>
|
||
<caption id="EEDA666A464FFFD8FFEFF934FB3DD8FC" ID-DOI="http://doi.org/10.5281/zenodo.10980934" ID-Zenodo-Dep="10980934" httpUri="https://zenodo.org/record/10980934/files/figure.png" pageId="21" pageNumber="122" startId="21.[98,131,1738,1760]" targetBox="[99,1481,161,1714]" targetPageId="21" targetType="figure">
|
||
<paragraph id="BA1A36E2464FFFD8FFEFF934FB3DD8FC" blockId="21.[98,1482,1738,1958]" pageId="21" pageNumber="122">
|
||
Fig. 17. Xylophagain bivalve
|
||
<taxonomicName id="7DA54D61464FFFD8FEFDF934FD25D9B8" authority="Hryniewicz" authorityName="Hryniewicz" authorityYear="2019" box="[368,653,1738,1760]" class="Bivalvia" family="Xylophagaidae" genus="Xylophagella" kingdom="Animalia" order="Myida" pageId="21" pageNumber="122" phylum="Mollusca" rank="species" species="littlei" status="sp. nov.">
|
||
<emphasis id="88D1EAF0464FFFD8FEFDF934FDB6D987" box="[368,542,1738,1759]" italics="true" pageId="21" pageNumber="122">Xylophagella littlei</emphasis>
|
||
Hryniewicz
|
||
</taxonomicName>
|
||
<taxonomicNameLabel id="93E2578B464FFFD8FD1EF934FD72D987" box="[659,730,1738,1759]" pageId="21" pageNumber="122" rank="species">sp. nov.</taxonomicNameLabel>
|
||
from the upper Paleocene, Basilika Formation, Fossildalen, Spitsbergen, Svalbard.
|
||
<emphasis id="88D1EAF0464FFFD8FFEFF918FFDAD9A3" bold="true" box="[98,114,1766,1787]" pageId="21" pageNumber="122">A</emphasis>
|
||
. Holotype, ZPAL V.48/5, partial shell, left valve (A
|
||
<subScript id="262134A7464FFFD8FDC3F90EFDFED9A6" attach="right" box="[590,598,1776,1790]" fontSize="6" pageId="21" pageNumber="122">1</subScript>
|
||
), right valve with fragment of posterior adductor muscle scar (PAMS) (A
|
||
<subScript id="262134A7464FFFD8FB76F90EFAABD9A6" attach="right" box="[1275,1283,1776,1790]" fontSize="6" pageId="21" pageNumber="122">2</subScript>
|
||
), dorsal view of both valves (A
|
||
<subScript id="262134A7464FFFD8FF35F8F2FF68D842" attach="left" box="[184,192,1804,1818]" fontSize="6" pageId="21" pageNumber="122">3</subScript>
|
||
), oblique ventral view showing partially overlapping shells (A
|
||
<subScript id="262134A7464FFFD8FD7BF8F2FD56D842" attach="right" box="[758,766,1804,1818]" fontSize="6" pageId="21" pageNumber="122">4</subScript>
|
||
).
|
||
<emphasis id="88D1EAF0464FFFD8FC9DF8FCFCB7D84F" bold="true" box="[784,799,1794,1815]" pageId="21" pageNumber="122">B</emphasis>
|
||
. Paratype, ZPAL V.48/6, partial shell, left valve, with trace of a ridge on the inner mold (B
|
||
<subScript id="262134A7464FFFD8FF6FF8D6FF42D86E" attach="left" box="[226,234,1832,1846]" fontSize="6" pageId="21" pageNumber="122">1</subScript>
|
||
), right valve (B
|
||
<subScript id="262134A7464FFFD8FEF1F8D6FE2CD86E" attach="left" box="[380,388,1832,1846]" fontSize="6" pageId="21" pageNumber="122">2</subScript>
|
||
), dorsal view of both valves (B
|
||
<subScript id="262134A7464FFFD8FD28F8D6FD05D86E" attach="left" box="[677,685,1832,1846]" fontSize="6" pageId="21" pageNumber="122">3</subScript>
|
||
), oblique posterior view showing internal surface of left valve internal mold with trace of a ridge on inner surface of shell (B
|
||
<subScript id="262134A7464FFFD8FE37F8BAFE6AD80A" attach="left" box="[442,450,1860,1874]" fontSize="6" pageId="21" pageNumber="122">4</subScript>
|
||
).
|
||
<emphasis id="88D1EAF0464FFFD8FE58F8C4FE4DD808" bold="true" box="[469,485,1850,1872]" pageId="21" pageNumber="122">C</emphasis>
|
||
. Paratype, ZPAL V.48/7, partial shell, left valve (C
|
||
<subScript id="262134A7464FFFD8FC34F8BAFC69D80A" attach="left" box="[953,961,1860,1874]" fontSize="6" pageId="21" pageNumber="122">1</subScript>
|
||
), right valve with fragment of posterior adductor muscle scar (PAMS) (C
|
||
<subScript id="262134A7464FFFD8FF7FF89EFF52D836" attach="left" box="[242,250,1888,1902]" fontSize="6" pageId="21" pageNumber="122">2</subScript>
|
||
), oblique anterior view (C
|
||
<subScript id="262134A7464FFFD8FE66F89EFE5BD836" attach="left" box="[491,499,1888,1902]" fontSize="6" pageId="21" pageNumber="122">3</subScript>
|
||
), enlarged fragment of prora with imprints of pallial muscles perpendicular to the shell edge, rasp composed of raised ridges covered with perpendicular lamellae (C
|
||
<subScript id="262134A7464FFFD8FDE8F882FDC5D8D2" attach="left" box="[613,621,1916,1930]" fontSize="6" pageId="21" pageNumber="122">4</subScript>
|
||
), enlarged fragment of prora, showing ornament of raised ridges covered with perpendicular lamellae (C
|
||
<subScript id="262134A7464FFFD8FF46F866FF7BD8FE" attach="left" box="[203,211,1944,1958]" fontSize="6" pageId="21" pageNumber="122">5</subScript>
|
||
).
|
||
<emphasis id="88D1EAF0464FFFD8FF68F870FF5DD8FB" bold="true" box="[229,245,1934,1955]" pageId="21" pageNumber="122">D</emphasis>
|
||
. Paratype, ZPAL V.48/8, internal mold, right valve showing trace of a ridge on the inner shell surface.
|
||
</paragraph>
|
||
</caption>
|
||
<caption id="EEDA666A464CFFDBFCD3FD1BFACEDCDE" ID-DOI="http://doi.org/10.5281/zenodo.10980936" ID-Zenodo-Dep="10980936" httpUri="https://zenodo.org/record/10980936/files/figure.png" pageId="22" pageNumber="123" startId="22.[862,895,741,763]" targetBox="[863,1532,162,715]" targetPageId="22" targetType="figure">
|
||
<paragraph id="BA1A36E2464CFFDBFCD3FD1BFACEDCDE" blockId="22.[862,1535,741,903]" pageId="22" pageNumber="123">
|
||
Fig. 18. Hiatellid bivalve
|
||
<taxonomicName id="7DA54D61464CFFDBFBC7FD1BFA64DDA4" authority="(Morris, 1852)" baseAuthorityName="Morris" baseAuthorityYear="1852" box="[1098,1484,741,764]" class="Bivalvia" family="Hiatellidae" genus="Cyrtodaria" isUncertain="true" kingdom="Animalia" order="Adapedonta" pageId="22" pageNumber="123" phylum="Mollusca" rank="species" species="rutupiensis">
|
||
<emphasis id="88D1EAF0464CFFDBFBC7FD1BFB07DDA2" box="[1098,1199,741,762]" italics="true" pageId="22" pageNumber="123">Cyrtodaria</emphasis>
|
||
aff.
|
||
<emphasis id="88D1EAF0464CFFDBFB57FD1BFA97DDA2" box="[1242,1343,741,762]" italics="true" pageId="22" pageNumber="123">rutupiensis</emphasis>
|
||
(
|
||
<bibRefCitation id="DE344B13464CFFDBFAC1FD1BFA6EDDA4" author="Morris, J." box="[1356,1478,741,764]" pageId="22" pageNumber="123" pagination="264 - 268" refId="ref32923" refString="Morris, J. 1852. Description of some fossil shells from the lower Thanet Sands. Geological Society of London Quaterly Journal 8: 264 - 268." type="journal article" year="1852">Morris, 1852</bibRefCitation>
|
||
)
|
||
</taxonomicName>
|
||
from the upper Paleocene, Basilika Formation, Zachariassendalen, Spitsbergen, Svalbard. NRM-PZ Mo 183943a–b, partial shell of a butterflied specimen with left (LV) and partial right valve (RV) preserved, showing external ornament of commarginal growth lines, and ridges on the inner shell surfaces supporting the posterior of anterior adductor muscle scar.
|
||
</paragraph>
|
||
</caption>
|
||
<paragraph id="BA1A36E2464CFFDBFF1AFCF7FEADDCDB" blockId="22.[151,824,777,899]" pageId="22" pageNumber="123">
|
||
<emphasis id="88D1EAF0464CFFDBFF1AFCF7FDE3DC7B" box="[151,587,777,803]" italics="true" pageId="22" pageNumber="123">Stratigraphic and geographic range</emphasis>
|
||
.—Upper Paleocene sunken driftwood associated with cold seep carbonates from the Basilika Formation, Fossildalen, Spitsbergen,
|
||
<collectingCountry id="C2B27672464CFFDBFF1AFC97FEA9DCDB" box="[151,257,873,899]" name="Svalbard and Jan Mayen" pageId="22" pageNumber="123">Svalbard</collectingCountry>
|
||
.
|
||
</paragraph>
|
||
</subSubSection>
|
||
</treatment>
|
||
</document> |