516 lines
83 KiB
XML
516 lines
83 KiB
XML
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<mods:title id="1B56FF91942F09EA5DE351D5A121F830">Crayfishes from the Jehol biota</mods:title>
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<mods:namePart id="E27CF04E88DA36E7AB43A3F4CA118507">Audo, Denis</mods:namePart>
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<mods:affiliation id="2CBEBA5BCA9D03A6822B278EC8D18F0A">Centre de Recherche en Paléontologie - Paris (CR 2 P, UMR 7207), MNHN, CNRS, Sorbonne Université, Muséum national d’Histoire naturelle, 57 rue Cuvier, F- 75231 Paris cedex 05 (France)</mods:affiliation>
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<mods:nameIdentifier id="7405A390002BB70B09F118ADC27F3B3E" type="email">denis.audo@mnhn.fr</mods:nameIdentifier>
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<mods:namePart id="BD09DB4F75B20E198AE5AAF37CD6AE04">Kawai, Tadashi</mods:namePart>
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<mods:affiliation id="87EA8FD7189CB09FC829BC598DE68C82">Hokkaido Research Organization, Central Fisheries Research Institute, 238 Hamanaka, Yoichi, 045 - 8555 Hokkaido (Japan)</mods:affiliation>
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<mods:nameIdentifier id="5A04AFA1194F381D84A2C610093B0D4C" type="email">tadashikawai8@gmail.com</mods:nameIdentifier>
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<mods:namePart id="FA32B6176D32F42102A0FBC5269A03E7">Letenneur, Charlène</mods:namePart>
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<mods:affiliation id="C75386AE8BB774DF4F16DBE9CB7C200E">Centre de Recherche en Paléontologie - Paris (CR 2 P, UMR 7207), MNHN, CNRS, Sorbonne Université, Muséum national d’Histoire naturelle, 57 rue Cuvier, F- 75231 Paris cedex 05 (France)</mods:affiliation>
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<mods:nameIdentifier id="A75CD4E393EBD250AE3FE50BE5088FAA" type="email">charlene.letenneur@mnhn.fr</mods:nameIdentifier>
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<mods:namePart id="EEC17C933A2FCFBEED7167E12FD0943C">Huang, Diying</mods:namePart>
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<mods:affiliation id="652F7CE3B416B89114CEB7FE6CD1C892">State Key Laboratory of Palaeobiology and Stratigraphy, Nanjing Institute of Geology and Palaeontology, Chinese Academy of Sciences, Nanjing 210008 (China)</mods:affiliation>
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<mods:nameIdentifier id="A9FE2CC709391F7C4C02668ABF883376" type="email">dyhuang@nigpas.ac.cn</mods:nameIdentifier>
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<mods:title id="F6A17B650070DD6A08B23249F1621AC5">Geodiversitas</mods:title>
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<mods:date id="E0810E9176C3755C3C7A0CA73ED6A8BC">2023</mods:date>
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Genus
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<taxonomicName id="3CD1EE98FFC2FFB1FF02F8E1A6B2CC17" authority="Taylor, Schram & Shen, 1999" authorityName="Taylor, Schram & Shen" authorityYear="1999" box="[245,739,1815,1841]" class="Malacostraca" family="Cambaridae" genus="Palaeocambarus" higherTaxonomySource="GBIF" kingdom="Animalia" order="Decapoda" pageId="5" pageNumber="692" phylum="Arthropoda" rank="genus">
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<emphasis id="C9A54909FFC2FFB1FF02F8E1A5CACC17" box="[245,411,1815,1841]" italics="true" pageId="5" pageNumber="692">Palaeocambarus</emphasis>
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<bibRefCitation id="9F40E8EAFFC2FFB1FE57F8E1A6B2CC17" author="TAYLOR R. S. & SCHRAM F. R. & SHEN Y. - B." box="[416,739,1815,1841]" pageId="5" pageNumber="692" pagination="121 - 136" refId="ref13937" refString="TAYLOR R. S., SCHRAM F. R. & SHEN Y. - B. 1999. - A new crayfish family (Decapoda: Astacida) from the Upper Jurassic of China, with a reinterpretation of other Chinese crayfish taxa. Paleontological Research 3 (2): 121 - 136." type="journal article" year="1999">Taylor, Schram & Shen, 1999</bibRefCitation>
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<taxonomicName id="3CD1EE98FFC2FFB1FF73F8A4A6ECCC4C" authority="Taylor, Schram & Shen, 1999: 122 - 130" authorityName="Taylor, Schram & Shen" authorityPageNumber="122 - 130" authorityYear="1999" box="[132,701,1874,1898]" class="Malacostraca" family="Cambaridae" genus="Palaeocambarus" higherTaxonomySource="GBIF" kingdom="Animalia" order="Decapoda" pageId="5" pageNumber="692" phylum="Arthropoda" rank="genus">
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<emphasis id="C9A54909FFC2FFB1FF73F8A4A54CCC4C" box="[132,285,1874,1898]" italics="true" pageId="5" pageNumber="692">Palaeocambarus</emphasis>
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<bibRefCitation id="9F40E8EAFFC2FFB1FED2F8A4A6ECCC4C" author="TAYLOR R. S. & SCHRAM F. R. & SHEN Y. - B." box="[293,701,1874,1898]" pageId="5" pageNumber="692" pagination="121 - 136" refId="ref13937" refString="TAYLOR R. S., SCHRAM F. R. & SHEN Y. - B. 1999. - A new crayfish family (Decapoda: Astacida) from the Upper Jurassic of China, with a reinterpretation of other Chinese crayfish taxa. Paleontological Research 3 (2): 121 - 136." type="journal article" year="1999">Taylor, Schram & Shen, 1999: 122-130</bibRefCitation>
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, figs 2, 4-6.
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—
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species:
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<taxonomicName id="3CD1EE98FFC2FFB1FEB5F89BA6D1CCA2" authority="Van Straelen, 1928 b" authorityName="Van Straelen" authorityYear="1928" box="[322,640,1900,1924]" class="Malacostraca" family="Astacidae" genus="Astacus" kingdom="Animalia" order="Decapoda" pageId="5" pageNumber="692" phylum="Arthropoda" rank="species" species="licenti">
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<emphasis id="C9A54909FFC2FFB1FEB5F89BA5EFCCA2" box="[322,446,1900,1924]" italics="true" pageId="5" pageNumber="692">Astacus licenti</emphasis>
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<bibRefCitation id="9F40E8EAFFC2FFB1FE33F89BA6D1CCA2" author="VAN STRAELEN V." box="[452,640,1900,1924]" pageId="5" pageNumber="692" pagination="133 - 139" refId="ref14038" refString="VAN STRAELEN V. 1928 b. - On a fossil freshwater crayfish from Eastern Mongolia. Bulletin of the Geological Society of China 7: 133 - 139." type="journal article" year="1928">Van Straelen, 1928b</bibRefCitation>
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, by monotypy.
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<taxonomicName id="3CD1EE98FFC2FFB1FF73F868A6C6CC90" authority="Taylor, Schram & Shen, 1999: 130 - 135" authorityName="Taylor, Schram & Shen" authorityPageNumber="130 - 135" authorityYear="1999" box="[132,663,1950,1975]" class="Malacostraca" family="Cricoidoscelosidae" genus="Cricoidoscelosus" higherTaxonomySource="GBIF" kingdom="Animalia" order="Decapoda" pageId="5" pageNumber="692" phylum="Arthropoda" rank="genus">
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<emphasis id="C9A54909FFC2FFB1FF73F868A544CC90" box="[132,277,1950,1974]" italics="true" pageId="5" pageNumber="692">Cricoidoscelosus</emphasis>
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<bibRefCitation id="9F40E8EAFFC2FFB1FEEDF868A6C6CC90" author="TAYLOR R. S. & SCHRAM F. R. & SHEN Y. - B." box="[282,663,1950,1975]" pageId="5" pageNumber="692" pagination="121 - 136" refId="ref13937" refString="TAYLOR R. S., SCHRAM F. R. & SHEN Y. - B. 1999. - A new crayfish family (Decapoda: Astacida) from the Upper Jurassic of China, with a reinterpretation of other Chinese crayfish taxa. Paleontological Research 3 (2): 121 - 136." type="journal article" year="1999">Taylor, Schram & Shen, 1999: 130-135</bibRefCitation>
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, figs 3, 7, 8,
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<emphasis id="C9A54909FFC2FFB1FF74F84FA497CCF7" bold="true" box="[131,198,1977,2001]" pageId="5" pageNumber="692">n. syn.</emphasis>
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—
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species:
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<taxonomicName id="3CD1EE98FFC2FFB1FE8DF84FA4A9CCCD" authority="Taylor, Schram & Shen, 1999" authorityName="Taylor, Schram & Shen" authorityYear="1999" class="Malacostraca" family="Cricoidoscelosidae" genus="Cricoidoscelosus" higherTaxonomySource="GBIF" kingdom="Animalia" order="Decapoda" pageId="5" pageNumber="692" phylum="Arthropoda" rank="species" species="aethus">
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<emphasis id="C9A54909FFC2FFB1FE8DF84FA601CCF7" box="[378,592,1977,2001]" italics="true" pageId="5" pageNumber="692">Cricoidoscelosus aethus</emphasis>
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<bibRefCitation id="9F40E8EAFFC2FFB1FDA2F84FA4A9CCCD" author="TAYLOR R. S. & SCHRAM F. R. & SHEN Y. - B." pageId="5" pageNumber="692" pagination="121 - 136" refId="ref13937" refString="TAYLOR R. S., SCHRAM F. R. & SHEN Y. - B. 1999. - A new crayfish family (Decapoda: Astacida) from the Upper Jurassic of China, with a reinterpretation of other Chinese crayfish taxa. Paleontological Research 3 (2): 121 - 136." type="journal article" year="1999">Taylor, Schram & Shen, 1999</bibRefCitation>
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</taxonomicName>
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.
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</paragraph>
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(
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<bibRefCitation id="9F40E8EAFFC2FFB1FBF2FF21A0E0CBD6" author="TAYLOR R. S. & SCHRAM F. R. & SHEN Y. - B." box="[1029,1201,215,240]" pageId="5" pageNumber="692" pagination="121 - 136" refId="ref13937" refString="TAYLOR R. S., SCHRAM F. R. & SHEN Y. - B. 1999. - A new crayfish family (Decapoda: Astacida) from the Upper Jurassic of China, with a reinterpretation of other Chinese crayfish taxa. Paleontological Research 3 (2): 121 - 136." type="journal article" year="1999">
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Taylor
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<emphasis id="C9A54909FFC2FFB1FBBCFF2EA029CBC9" box="[1099,1144,215,239]" italics="true" pageId="5" pageNumber="692">
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<emphasis id="C9A54909FFC2FFB1FBBCFF2EA020CBC9" bold="true" box="[1099,1137,215,239]" italics="true" pageId="5" pageNumber="692">et al</emphasis>
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.
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</emphasis>
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1999
|
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</bibRefCitation>
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). — “Entire dorsal surface of cuticle covered with fine granulations. Rostrum with basal lateral spines. Elongate, bladelike scaphocerite. Chela of first pereiopod long and narrow with extensive pitting and spination. No hooks visible on ischia. Pleura large and rounded on abdominal segments 2-5, 2nd pleuron being largest. Pleopods elongate and blade like, with no specialization on first. Telson subrectangular with pair of large lateral spines and rounded distal margin.” (
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Taylor
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<emphasis id="C9A54909FFC2FFB1FACAFE67A13BCA8F" box="[1341,1386,401,425]" italics="true" pageId="5" pageNumber="692">et al.</emphasis>
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1999
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</bibRefCitation>
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).
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</paragraph>
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|
||
(present work). — Pyriform cephalothoracic shield, longer than wide; rostrum in two parts, proximal part wide, less than half total rostrum length, tapering distally, flanked by a pair of lateral spine at the tip of supra-orbital carina, acumen (distal part) blade-like; deep-curved cervical groove, crossing median-line; subdorsal carina extending into the rostrum and on the cephalic region; postorbital carina double: dorsal part near subdorsal carina, formed of two spines aligned horizontally, each extending posteriorly in a short carina; ventral part formed of at least four spines posterior to the ocular incision; postrostral carina on median dorsal line, formed of at least four spines on the anterior half of the cephalic region, posterior to the rostrum; epistome with a wide cephalic lobe forming three spines anteriorly, no spine on the rest of epistome; telson with diaeresis and rigid distal portion; pleopods 1-2 forming copulatory gonopods in males; uropodal exopodite with a diaeresis and rigid distal portion.
|
||
</paragraph>
|
||
</subSubSection>
|
||
<subSubSection id="B3CBC690FFC2FFB3FCDAFC83A60ACCCD" lastPageId="7" lastPageNumber="694" pageId="5" pageNumber="692" type="discussion">
|
||
<paragraph id="FB6E951BFFC2FFB1FCDAFC83A7FDC8AB" blockId="5.[810,1457,885,2028]" box="[813,940,885,911]" pageId="5" pageNumber="692">
|
||
<smallCapsWord id="FD8803C7FFC2FFB1FCDAFC83A7FDC8AB" baselines="904,904" box="[813,940,885,911]" lowerCaseFontSize="8" mainFontSize="11" normCase="title" normString="Comments" pageId="5" pageNumber="692">COMMENTS</smallCapsWord>
|
||
</paragraph>
|
||
<paragraph id="FB6E951BFFC2FFB1FCDAFC63A0E0CCCD" blockId="5.[810,1457,885,2028]" pageId="5" pageNumber="692">
|
||
<bibRefCitation id="9F40E8EAFFC2FFB1FCDAFC63A7BFC889" author="TAYLOR R. S. & SCHRAM F. R. & SHEN Y. - B." box="[813,1006,917,943]" pageId="5" pageNumber="692" pagination="121 - 136" refId="ref13937" refString="TAYLOR R. S., SCHRAM F. R. & SHEN Y. - B. 1999. - A new crayfish family (Decapoda: Astacida) from the Upper Jurassic of China, with a reinterpretation of other Chinese crayfish taxa. Paleontological Research 3 (2): 121 - 136." type="journal article" year="1999">
|
||
Taylor
|
||
<emphasis id="C9A54909FFC2FFB1FC84FC60A7F2C889" box="[883,931,917,943]" italics="true" pageId="5" pageNumber="692">et al.</emphasis>
|
||
(1999)
|
||
</bibRefCitation>
|
||
described a new species, genus and family of crayfish from the Jehol biota. Following their revision, the two species they considered valid in Jehol biota therefore belonged to two distinct genera (
|
||
<taxonomicName id="3CD1EE98FFC2FFB1FBD9FC02A085CF28" authorityName="Taylor, Schram & Shen" authorityYear="1999" box="[1070,1236,1012,1038]" class="Malacostraca" family="Cambaridae" genus="Palaeocambarus" higherTaxonomySource="GBIF" kingdom="Animalia" order="Decapoda" pageId="5" pageNumber="692" phylum="Arthropoda" rank="genus">
|
||
<emphasis id="C9A54909FFC2FFB1FBD9FC02A085CF28" box="[1070,1236,1012,1038]" italics="true" pageId="5" pageNumber="692">Palaeocambarus</emphasis>
|
||
</taxonomicName>
|
||
and
|
||
<taxonomicName id="3CD1EE98FFC2FFB1FAF8FC02A7B5CF08" authority="Taylor et al. 1999" authorityName="Taylor" authorityYear="1999" class="Malacostraca" family="Cricoidoscelosidae" genus="Cricoidoscelosus" higherTaxonomySource="GBIF" kingdom="Animalia" order="Decapoda" pageId="5" pageNumber="692" phylum="Arthropoda" rank="genus">
|
||
<emphasis id="C9A54909FFC2FFB1FAF8FC02A1E1CF28" box="[1295,1456,1012,1038]" italics="true" pageId="5" pageNumber="692">Cricoidoscelosus</emphasis>
|
||
<bibRefCitation id="9F40E8EAFFC2FFB1FCDAFBE2A7B5CF08" author="TAYLOR R. S. & SCHRAM F. R. & SHEN Y. - B." box="[813,996,1044,1070]" pageId="5" pageNumber="692" pagination="121 - 136" refId="ref13937" refString="TAYLOR R. S., SCHRAM F. R. & SHEN Y. - B. 1999. - A new crayfish family (Decapoda: Astacida) from the Upper Jurassic of China, with a reinterpretation of other Chinese crayfish taxa. Paleontological Research 3 (2): 121 - 136." type="journal article" year="1999">
|
||
Taylor
|
||
<emphasis id="C9A54909FFC2FFB1FC81FBE3A7F6CF08" box="[886,935,1044,1070]" italics="true" pageId="5" pageNumber="692">et al.</emphasis>
|
||
1999
|
||
</bibRefCitation>
|
||
</taxonomicName>
|
||
) and two distinct families (
|
||
<taxonomicName id="3CD1EE98FFC2FFB1FB09FBE2A1D3CF08" authorityName="Hobbs" authorityYear="1942" box="[1278,1410,1044,1070]" class="Malacostraca" family="Cambaridae" kingdom="Animalia" order="Decapoda" pageId="5" pageNumber="692" phylum="Arthropoda" rank="family">Cambaridae</taxonomicName>
|
||
and
|
||
<taxonomicName id="3CD1EE98FFC2FFB1FCDCFBC2A7BECF68" authorityName="Taylor, Schram & Shen" authorityYear="1999" box="[811,1007,1076,1102]" class="Malacostraca" family="Cricoidoscelosidae" higherTaxonomySource="GBIF" kingdom="Animalia" order="Decapoda" pageId="5" pageNumber="692" phylum="Arthropoda" rank="family">Cricoidoscelosidae</taxonomicName>
|
||
respectively).Concerning
|
||
<taxonomicName id="3CD1EE98FFC2FFB1FAF3FBC2A704CF48" authorityName="Taylor, Schram & Shen" authorityYear="1999" class="Malacostraca" family="Cricoidoscelosidae" higherTaxonomySource="GBIF" kingdom="Animalia" order="Decapoda" pageId="5" pageNumber="692" phylum="Arthropoda" rank="family">Cricoidoscelosidae</taxonomicName>
|
||
, we herein consider that diagnostic characters used in the erection of this family are not sufficient to distinguish a new family: some of them are common to all crayfishes, such as the bladelike scaphocerite, well-developed first chelae and large rostrum with large lateral spines (observed in several species of
|
||
<taxonomicName id="3CD1EE98FFC2FFB1FC61FB05A04ACE2B" authorityName="Hobbs" authorityYear="1942" box="[918,1051,1267,1293]" class="Malacostraca" family="Cambaridae" kingdom="Animalia" order="Decapoda" pageId="5" pageNumber="692" phylum="Arthropoda" rank="family">Cambaridae</taxonomicName>
|
||
,
|
||
<taxonomicName id="3CD1EE98FFC2FFB1FBD3FB05A0DACE2B" authorityName="Latreille" authorityYear="1802" box="[1060,1163,1267,1293]" class="Malacostraca" family="Astacidae" kingdom="Animalia" order="Decapoda" pageId="5" pageNumber="692" phylum="Arthropoda" rank="family">Astacidae</taxonomicName>
|
||
,
|
||
<taxonomicName id="3CD1EE98FFC2FFB1FB67FB05A147CE2B" authorityName="Faxon" authorityYear="1884" box="[1168,1302,1267,1293]" class="Malacostraca" family="Cambaroididae" genus="Cambaroides" kingdom="Animalia" order="Decapoda" pageId="5" pageNumber="692" phylum="Arthropoda" rank="genus">
|
||
<emphasis id="C9A54909FFC2FFB1FB67FB05A147CE2B" box="[1168,1302,1267,1293]" italics="true" pageId="5" pageNumber="692">Cambaroides</emphasis>
|
||
</taxonomicName>
|
||
and
|
||
<taxonomicName id="3CD1EE98FFC2FFB1FABDFB05A702CE0B" authorityName="Huxley" authorityYear="1879" class="Malacostraca" family="Parastacidae" kingdom="Animalia" order="Decapoda" pageId="5" pageNumber="692" phylum="Arthropoda" rank="family">Parastacidae</taxonomicName>
|
||
) or the gonopores on the coxa (not sternite) of females (plesiomorphic condition, occurring in most decapods). The first pleopod being styliform in males (first gonopod) is an important diagnostic character, but only excludes
|
||
<taxonomicName id="3CD1EE98FFC2FFB1FAC6FA85A1E1CEAB" authorityName="Huxley" authorityYear="1879" box="[1329,1456,1395,1421]" class="Malacostraca" family="Parastacidae" kingdom="Animalia" order="Decapoda" pageId="5" pageNumber="692" phylum="Arthropoda" rank="family">Parastacidae</taxonomicName>
|
||
from consideration. Rounded pleurae, as observed in
|
||
<bibRefCitation id="9F40E8EAFFC2FFB1FA8CFA65A7FDCEEB" author="SHEN Y. - B. & SHRAM F. R. & TAYLOR R. S." pageId="5" pageNumber="692" pagination="26 - 33" refId="ref13672" refString="SHEN Y. - B., SHRAM F. R. & TAYLOR R. S. 2001. - Morphological variation in fossil crayfish of the Jehol biota, Liaoning Province, China and its texonomic discrimination. Chinese Science Bulletin 46 (1): 26 - 33. https: // doi. org / 10.1007 / BF 03183202" type="journal article" year="2001">
|
||
Shen
|
||
<emphasis id="C9A54909FFC2FFB1FCDAFA42A70FCEEB" box="[813,862,1459,1485]" italics="true" pageId="5" pageNumber="692">et al.</emphasis>
|
||
(2001)
|
||
</bibRefCitation>
|
||
, were not observed in all specimens: our observations led us to believe this is only a preservation artefact, due to flattening of the specimens. More importantly perhaps, the namesake character for
|
||
<taxonomicName id="3CD1EE98FFC2FFB1FBA5F9E4A14FCD0A" authorityName="Taylor, Schram & Shen" authorityYear="1999" box="[1106,1310,1554,1580]" class="Malacostraca" family="Cricoidoscelosidae" higherTaxonomySource="GBIF" kingdom="Animalia" order="Decapoda" pageId="5" pageNumber="692" phylum="Arthropoda" rank="family">Cricoidoscelosidae</taxonomicName>
|
||
, the pleopods formed of numerous rings (multiarticulated –
|
||
<figureCitation id="63EA899EFFC2FFB1FAD6F9C4A1C1CD6B" box="[1313,1424,1586,1613]" captionStart="FIG" captionStartId="6.[132,143,1768,1785]" captionTargetBox="[132,1455,215,1725]" captionTargetId="figure-89@6.[129,1459,213,1728]" captionTargetPageId="6" captionText="FIG. 1. — Pleopods of different decapod crustaceans, fossil and extant: A, B, Palaeocambarus licenti (Van Straelen, 1928b) seen in ventral view (A, holotype of Cricoidoscelosus aethus Taylor, 1999, NIGP-126337) and lateral view (B, specimen NIGP-Shen-2), both from the Early Cretaceous of China; C, pleopod 4 of a female Cambaroides dauricus (MNHN-IU-2022-4077, extant, Mandchuria);D, Austropotamobius llopisi (Vía, 1971) (female? – specimen MUPA-LH-14011), from the Early Cretaceous of Spain; E, Palaeobenthesicymus libanensis (Brocchi, 1875) (specimen MNHN.F.A30607) from the Santonian of Lebanon; F, female Polycheles typhlops Heller, 1862 (MNHN-IU-2022-4080, extant, New Caledonia). Photographs: D. Audo. Scale bars: A, C, 1 mm; B, D, E, F, 5 mm." figureDoi="http://doi.org/10.5281/zenodo.10376396" httpUri="https://zenodo.org/record/10376396/files/figure.png" pageId="5" pageNumber="692">Fig. 1A, B</figureCitation>
|
||
) is also visible in other crayfishes such as
|
||
<taxonomicName id="3CD1EE98FFC2FFB1FB48F9A4A117CD4A" authorityName="Faxon" authorityYear="1884" box="[1215,1350,1618,1644]" class="Malacostraca" family="Cambaroididae" genus="Cambaroides" kingdom="Animalia" order="Decapoda" pageId="5" pageNumber="692" phylum="Arthropoda" rank="genus">
|
||
<emphasis id="C9A54909FFC2FFB1FB48F9A4A117CD4A" box="[1215,1350,1618,1644]" italics="true" pageId="5" pageNumber="692">Cambaroides</emphasis>
|
||
</taxonomicName>
|
||
(
|
||
<figureCitation id="63EA899EFFC2FFB1FAA1F9A4A1F6CD4A" box="[1366,1447,1618,1644]" captionStart="FIG" captionStartId="6.[132,143,1768,1785]" captionTargetBox="[132,1455,215,1725]" captionTargetId="figure-89@6.[129,1459,213,1728]" captionTargetPageId="6" captionText="FIG. 1. — Pleopods of different decapod crustaceans, fossil and extant: A, B, Palaeocambarus licenti (Van Straelen, 1928b) seen in ventral view (A, holotype of Cricoidoscelosus aethus Taylor, 1999, NIGP-126337) and lateral view (B, specimen NIGP-Shen-2), both from the Early Cretaceous of China; C, pleopod 4 of a female Cambaroides dauricus (MNHN-IU-2022-4077, extant, Mandchuria);D, Austropotamobius llopisi (Vía, 1971) (female? – specimen MUPA-LH-14011), from the Early Cretaceous of Spain; E, Palaeobenthesicymus libanensis (Brocchi, 1875) (specimen MNHN.F.A30607) from the Santonian of Lebanon; F, female Polycheles typhlops Heller, 1862 (MNHN-IU-2022-4080, extant, New Caledonia). Photographs: D. Audo. Scale bars: A, C, 1 mm; B, D, E, F, 5 mm." figureDoi="http://doi.org/10.5281/zenodo.10376396" httpUri="https://zenodo.org/record/10376396/files/figure.png" pageId="5" pageNumber="692">Fig. 1C</figureCitation>
|
||
) and even fossil
|
||
<taxonomicName id="3CD1EE98FFC2FFB1FC22F984A168CDAA" authority="Skorikov, 1907" authorityName="Skorikov" authorityYear="1907" box="[981,1337,1650,1676]" class="Malacostraca" family="Astacidae" genus="Austropotamobius" kingdom="Animalia" order="Decapoda" pageId="5" pageNumber="692" phylum="Arthropoda" rank="genus">
|
||
<emphasis id="C9A54909FFC2FFB1FC22F984A0DCCDAA" box="[981,1165,1650,1676]" italics="true" pageId="5" pageNumber="692">Austropotamobius</emphasis>
|
||
Skorikov, 1907
|
||
</taxonomicName>
|
||
(
|
||
<figureCitation id="63EA899EFFC2FFB1FABDF984A1F0CDAA" box="[1354,1441,1650,1676]" captionStart="FIG" captionStartId="6.[132,143,1768,1785]" captionTargetBox="[132,1455,215,1725]" captionTargetId="figure-89@6.[129,1459,213,1728]" captionTargetPageId="6" captionText="FIG. 1. — Pleopods of different decapod crustaceans, fossil and extant: A, B, Palaeocambarus licenti (Van Straelen, 1928b) seen in ventral view (A, holotype of Cricoidoscelosus aethus Taylor, 1999, NIGP-126337) and lateral view (B, specimen NIGP-Shen-2), both from the Early Cretaceous of China; C, pleopod 4 of a female Cambaroides dauricus (MNHN-IU-2022-4077, extant, Mandchuria);D, Austropotamobius llopisi (Vía, 1971) (female? – specimen MUPA-LH-14011), from the Early Cretaceous of Spain; E, Palaeobenthesicymus libanensis (Brocchi, 1875) (specimen MNHN.F.A30607) from the Santonian of Lebanon; F, female Polycheles typhlops Heller, 1862 (MNHN-IU-2022-4080, extant, New Caledonia). Photographs: D. Audo. Scale bars: A, C, 1 mm; B, D, E, F, 5 mm." figureDoi="http://doi.org/10.5281/zenodo.10376396" httpUri="https://zenodo.org/record/10376396/files/figure.png" pageId="5" pageNumber="692">Fig. 1D</figureCitation>
|
||
). In fact, the presence of multiarticulated pleopods in other decapods, such as dendrobranchiate shrimps (
|
||
<figureCitation id="63EA899EFFC2FFB1FAD2F944A126CDEA" box="[1317,1399,1714,1740]" captionStart="FIG" captionStartId="6.[132,143,1768,1785]" captionTargetBox="[132,1455,215,1725]" captionTargetId="figure-89@6.[129,1459,213,1728]" captionTargetPageId="6" captionText="FIG. 1. — Pleopods of different decapod crustaceans, fossil and extant: A, B, Palaeocambarus licenti (Van Straelen, 1928b) seen in ventral view (A, holotype of Cricoidoscelosus aethus Taylor, 1999, NIGP-126337) and lateral view (B, specimen NIGP-Shen-2), both from the Early Cretaceous of China; C, pleopod 4 of a female Cambaroides dauricus (MNHN-IU-2022-4077, extant, Mandchuria);D, Austropotamobius llopisi (Vía, 1971) (female? – specimen MUPA-LH-14011), from the Early Cretaceous of Spain; E, Palaeobenthesicymus libanensis (Brocchi, 1875) (specimen MNHN.F.A30607) from the Santonian of Lebanon; F, female Polycheles typhlops Heller, 1862 (MNHN-IU-2022-4080, extant, New Caledonia). Photographs: D. Audo. Scale bars: A, C, 1 mm; B, D, E, F, 5 mm." figureDoi="http://doi.org/10.5281/zenodo.10376396" httpUri="https://zenodo.org/record/10376396/files/figure.png" pageId="5" pageNumber="692">Fig. 1E</figureCitation>
|
||
) and in polychelidans (
|
||
<figureCitation id="63EA899EFFC2FFB1FC11F924A063CDCA" box="[998,1074,1746,1772]" captionStart="FIG" captionStartId="6.[132,143,1768,1785]" captionTargetBox="[132,1455,215,1725]" captionTargetId="figure-89@6.[129,1459,213,1728]" captionTargetPageId="6" captionText="FIG. 1. — Pleopods of different decapod crustaceans, fossil and extant: A, B, Palaeocambarus licenti (Van Straelen, 1928b) seen in ventral view (A, holotype of Cricoidoscelosus aethus Taylor, 1999, NIGP-126337) and lateral view (B, specimen NIGP-Shen-2), both from the Early Cretaceous of China; C, pleopod 4 of a female Cambaroides dauricus (MNHN-IU-2022-4077, extant, Mandchuria);D, Austropotamobius llopisi (Vía, 1971) (female? – specimen MUPA-LH-14011), from the Early Cretaceous of Spain; E, Palaeobenthesicymus libanensis (Brocchi, 1875) (specimen MNHN.F.A30607) from the Santonian of Lebanon; F, female Polycheles typhlops Heller, 1862 (MNHN-IU-2022-4080, extant, New Caledonia). Photographs: D. Audo. Scale bars: A, C, 1 mm; B, D, E, F, 5 mm." figureDoi="http://doi.org/10.5281/zenodo.10376396" httpUri="https://zenodo.org/record/10376396/files/figure.png" pageId="5" pageNumber="692">Fig. 1F</figureCitation>
|
||
) suggests that multiarticulated pleopods are in fact a plesiomorphic character state for decapod crustaceans. It is worth mentioning that fossilization appears to make pleopod annulations more visible (
|
||
<figureCitation id="63EA899EFFC2FFB1FB0DF8C7A1F9CC6A" box="[1274,1448,1841,1868]" captionStart="FIG" captionStartId="6.[132,143,1768,1785]" captionTargetBox="[132,1455,215,1725]" captionTargetId="figure-89@6.[129,1459,213,1728]" captionTargetPageId="6" captionText="FIG. 1. — Pleopods of different decapod crustaceans, fossil and extant: A, B, Palaeocambarus licenti (Van Straelen, 1928b) seen in ventral view (A, holotype of Cricoidoscelosus aethus Taylor, 1999, NIGP-126337) and lateral view (B, specimen NIGP-Shen-2), both from the Early Cretaceous of China; C, pleopod 4 of a female Cambaroides dauricus (MNHN-IU-2022-4077, extant, Mandchuria);D, Austropotamobius llopisi (Vía, 1971) (female? – specimen MUPA-LH-14011), from the Early Cretaceous of Spain; E, Palaeobenthesicymus libanensis (Brocchi, 1875) (specimen MNHN.F.A30607) from the Santonian of Lebanon; F, female Polycheles typhlops Heller, 1862 (MNHN-IU-2022-4080, extant, New Caledonia). Photographs: D. Audo. Scale bars: A, C, 1 mm; B, D, E, F, 5 mm." figureDoi="http://doi.org/10.5281/zenodo.10376396" httpUri="https://zenodo.org/record/10376396/files/figure.png" pageId="5" pageNumber="692">Fig. 1A, B, D, E</figureCitation>
|
||
) than in specimens preserved in alcohol (
|
||
<figureCitation id="63EA899EFFC2FFB1FB23F8A7A113CC4A" box="[1236,1346,1873,1900]" captionStart="FIG" captionStartId="6.[132,143,1768,1785]" captionTargetBox="[132,1455,215,1725]" captionTargetId="figure-89@6.[129,1459,213,1728]" captionTargetPageId="6" captionText="FIG. 1. — Pleopods of different decapod crustaceans, fossil and extant: A, B, Palaeocambarus licenti (Van Straelen, 1928b) seen in ventral view (A, holotype of Cricoidoscelosus aethus Taylor, 1999, NIGP-126337) and lateral view (B, specimen NIGP-Shen-2), both from the Early Cretaceous of China; C, pleopod 4 of a female Cambaroides dauricus (MNHN-IU-2022-4077, extant, Mandchuria);D, Austropotamobius llopisi (Vía, 1971) (female? – specimen MUPA-LH-14011), from the Early Cretaceous of Spain; E, Palaeobenthesicymus libanensis (Brocchi, 1875) (specimen MNHN.F.A30607) from the Santonian of Lebanon; F, female Polycheles typhlops Heller, 1862 (MNHN-IU-2022-4080, extant, New Caledonia). Photographs: D. Audo. Scale bars: A, C, 1 mm; B, D, E, F, 5 mm." figureDoi="http://doi.org/10.5281/zenodo.10376396" httpUri="https://zenodo.org/record/10376396/files/figure.png" pageId="5" pageNumber="692">Fig. 1C, F</figureCitation>
|
||
). We were not able to observe the variations noted by
|
||
<bibRefCitation id="9F40E8EAFFC2FFB1FB11F887A1FECCAD" author="TAYLOR R. S. & SCHRAM F. R. & SHEN Y. - B." box="[1254,1455,1905,1931]" pageId="5" pageNumber="692" pagination="121 - 136" refId="ref13937" refString="TAYLOR R. S., SCHRAM F. R. & SHEN Y. - B. 1999. - A new crayfish family (Decapoda: Astacida) from the Upper Jurassic of China, with a reinterpretation of other Chinese crayfish taxa. Paleontological Research 3 (2): 121 - 136." type="journal article" year="1999">
|
||
Taylor
|
||
<emphasis id="C9A54909FFC2FFB1FAC6F884A133CCAD" box="[1329,1378,1905,1931]" italics="true" pageId="5" pageNumber="692">et al.</emphasis>
|
||
(1999)
|
||
</bibRefCitation>
|
||
or
|
||
<bibRefCitation id="9F40E8EAFFC2FFB1FCBDF867A05BCC8D" author="SHEN Y. - B. & SHRAM F. R. & TAYLOR R. S." box="[842,1034,1937,1963]" pageId="5" pageNumber="692" pagination="26 - 33" refId="ref13672" refString="SHEN Y. - B., SHRAM F. R. & TAYLOR R. S. 2001. - Morphological variation in fossil crayfish of the Jehol biota, Liaoning Province, China and its texonomic discrimination. Chinese Science Bulletin 46 (1): 26 - 33. https: // doi. org / 10.1007 / BF 03183202" type="journal article" year="2001">
|
||
Shen
|
||
<emphasis id="C9A54909FFC2FFB1FC70F864A7EBCC8D" box="[903,954,1937,1963]" italics="true" pageId="5" pageNumber="692">et al.</emphasis>
|
||
(2001)
|
||
</bibRefCitation>
|
||
: our observations suggest that the variations may be due to variation in preservation, or angle at which these structures are flattened.
|
||
</paragraph>
|
||
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|
||
<paragraph id="FB6E951BFFC1FFB2FF73F91EA173CC72" blockId="6.[132,1455,1768,1876]" pageId="6" pageNumber="693">
|
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|
||
. 1. — Pleopods of different decapod crustaceans, fossil and extant:
|
||
<emphasis id="C9A54909FFC1FFB2FD2AF91EA6BBCDDF" bold="true" box="[733,746,1768,1785]" pageId="6" pageNumber="693">A</emphasis>
|
||
,
|
||
<emphasis id="C9A54909FFC1FFB2FD02F91EA753CDDF" bold="true" box="[757,770,1768,1785]" pageId="6" pageNumber="693">B</emphasis>
|
||
,
|
||
<taxonomicName id="3CD1EE98FFC1FFB2FCFAF91EA0D7CDDF" authority="(Van Straelen, 1928 b)" baseAuthorityName="Van Straelen" baseAuthorityYear="1928" box="[781,1158,1768,1785]" class="Malacostraca" family="Cambaridae" genus="Palaeocambarus" higherTaxonomySource="GBIF" kingdom="Animalia" order="Decapoda" pageId="6" pageNumber="693" phylum="Arthropoda" rank="species" species="licenti">
|
||
<emphasis id="C9A54909FFC1FFB2FCFAF91EA79CCDDF" box="[781,973,1768,1785]" italics="true" pageId="6" pageNumber="693">Palaeocambarus licenti</emphasis>
|
||
(
|
||
<bibRefCitation id="9F40E8EAFFC1FFB2FC20F91EA0D0CDDF" author="VAN STRAELEN V." box="[983,1153,1768,1785]" pageId="6" pageNumber="693" pagination="133 - 139" refId="ref14038" refString="VAN STRAELEN V. 1928 b. - On a fossil freshwater crayfish from Eastern Mongolia. Bulletin of the Geological Society of China 7: 133 - 139." type="journal article" year="1928">Van Straelen, 1928b</bibRefCitation>
|
||
)
|
||
</taxonomicName>
|
||
seen in ventral view (
|
||
<emphasis id="C9A54909FFC1FFB2FACDF91EA116CDDF" bold="true" box="[1338,1351,1768,1785]" pageId="6" pageNumber="693">A</emphasis>
|
||
, holotype of
|
||
<taxonomicName id="3CD1EE98FFC1FFB2FF73F909A5EECC36" authority="Taylor, 1999" authorityName="Taylor, Schram & Shen" authorityYear="1999" box="[132,447,1791,1808]" class="Malacostraca" family="Cricoidoscelosidae" genus="Cricoidoscelosus" higherTaxonomySource="GBIF" kingdom="Animalia" order="Decapoda" pageId="6" pageNumber="693" phylum="Arthropoda" rank="species" species="aethus">
|
||
<emphasis id="C9A54909FFC1FFB2FF73F909A501CC36" box="[132,336,1791,1808]" italics="true" pageId="6" pageNumber="693">Cricoidoscelosus aethus</emphasis>
|
||
<bibRefCitation id="9F40E8EAFFC1FFB2FEA2F909A5EECC36" author="TAYLOR R. S. & SCHRAM F. R. & SHEN Y. - B." box="[341,447,1791,1808]" pageId="6" pageNumber="693" pagination="121 - 136" refId="ref13937" refString="TAYLOR R. S., SCHRAM F. R. & SHEN Y. - B. 1999. - A new crayfish family (Decapoda: Astacida) from the Upper Jurassic of China, with a reinterpretation of other Chinese crayfish taxa. Paleontological Research 3 (2): 121 - 136." type="journal article" year="1999">Taylor, 1999</bibRefCitation>
|
||
</taxonomicName>
|
||
, NIGP-126337) and lateral view (
|
||
<emphasis id="C9A54909FFC1FFB2FD26F909A68FCC36" bold="true" box="[721,734,1791,1808]" pageId="6" pageNumber="693">B</emphasis>
|
||
, specimen NIGP-Shen-2), both from the Early Cretaceous of China;
|
||
<emphasis id="C9A54909FFC1FFB2FAEBF909A17BCC36" bold="true" box="[1308,1322,1791,1808]" pageId="6" pageNumber="693">C</emphasis>
|
||
, pleopod 4 of a female
|
||
<taxonomicName id="3CD1EE98FFC1FFB2FF36F8E3A52ACC00" authorityName="Pallas" authorityYear="1772" box="[193,379,1813,1830]" class="Malacostraca" family="Cambaroididae" genus="Cambaroides" kingdom="Animalia" order="Decapoda" pageId="6" pageNumber="693" phylum="Arthropoda" rank="species" species="dauricus">
|
||
<emphasis id="C9A54909FFC1FFB2FF36F8E3A52ACC00" box="[193,379,1813,1830]" italics="true" pageId="6" pageNumber="693">Cambaroides dauricus</emphasis>
|
||
</taxonomicName>
|
||
(MNHN-IU-2022-4077, extant, Mandchuria);
|
||
<emphasis id="C9A54909FFC1FFB2FD06F8E3A6AECC00" bold="true" box="[753,767,1813,1830]" pageId="6" pageNumber="693">D</emphasis>
|
||
,
|
||
<taxonomicName id="3CD1EE98FFC1FFB2FCFEF8E3A063CC00" authority="(Via, 1971)" baseAuthorityName="Via" baseAuthorityYear="1971" box="[777,1074,1813,1830]" class="Malacostraca" family="Astacidae" genus="Austropotamobius" kingdom="Animalia" order="Decapoda" pageId="6" pageNumber="693" phylum="Arthropoda" rank="species" species="llopisi">
|
||
<emphasis id="C9A54909FFC1FFB2FCFEF8E3A787CC00" box="[777,982,1813,1830]" italics="true" pageId="6" pageNumber="693">Austropotamobius llopisi</emphasis>
|
||
(Vía, 1971)
|
||
</taxonomicName>
|
||
(female? – specimen MUPA-LH-14011), from the Early Cretaceous of Spain;
|
||
<emphasis id="C9A54909FFC1FFB2FE70F8DAA5C2CC1B" bold="true" box="[391,403,1836,1853]" pageId="6" pageNumber="693">E</emphasis>
|
||
,
|
||
<taxonomicName id="3CD1EE98FFC1FFB2FE6AF8DAA77DCC1B" authority="(Brocchi, 1875)" baseAuthorityName="Brocchi" baseAuthorityYear="1875" box="[413,812,1836,1853]" class="Malacostraca" family="Benthesicymidae" genus="Palaeobenthesicymus" higherTaxonomySource="GBIF" kingdom="Animalia" order="Decapoda" pageId="6" pageNumber="693" phylum="Arthropoda" rank="species" species="libanensis">
|
||
<emphasis id="C9A54909FFC1FFB2FE6AF8DAA6FBCC1B" box="[413,682,1836,1853]" italics="true" pageId="6" pageNumber="693">Palaeobenthesicymus libanensis</emphasis>
|
||
(Brocchi, 1875)
|
||
</taxonomicName>
|
||
(specimen MNHN.F.A30607) from the Santonian of Lebanon;
|
||
<emphasis id="C9A54909FFC1FFB2FAC5F8DAA16CCC1B" bold="true" box="[1330,1341,1836,1853]" pageId="6" pageNumber="693">F</emphasis>
|
||
, female
|
||
<taxonomicName id="3CD1EE98FFC1FFB2FA73F8DAA521CC72" authority="Heller, 1862" authorityName="Heller" authorityYear="1862" class="Malacostraca" family="Polychelidae" genus="Polycheles" higherTaxonomySource="GBIF" kingdom="Animalia" order="Decapoda" pageId="6" pageNumber="693" phylum="Arthropoda" rank="species" species="typhlops">
|
||
<emphasis id="C9A54909FFC1FFB2FA73F8DAA557CC72" italics="true" pageId="6" pageNumber="693">Polycheles typhlops</emphasis>
|
||
Heller, 1862
|
||
</taxonomicName>
|
||
(MNHN-IU-2022-4080, extant, New Caledonia). Photographs: D. Audo. Scale bars: A, C, 1 mm; B, D, E, F, 5 mm.
|
||
</paragraph>
|
||
</caption>
|
||
<paragraph id="FB6E951BFFC1FFB3FF6CF864A630CF88" blockId="6.[132,775,1937,2027]" lastBlockId="7.[130,777,215,2028]" lastPageId="7" lastPageNumber="694" pageId="6" pageNumber="693">
|
||
From our assessment, the epistome of
|
||
<taxonomicName id="3CD1EE98FFC1FFB2FDE3F867A6DACC8D" authorityName="Bell" authorityYear="1850" box="[532,651,1937,1963]" class="Malacostraca" family="Erymidae" genus="Palaeastacus" higherTaxonomySource="GBIF" kingdom="Animalia" order="Decapoda" pageId="6" pageNumber="693" phylum="Arthropoda" rank="genus">
|
||
<emphasis id="C9A54909FFC1FFB2FDE3F867A6DACC8D" box="[532,651,1937,1963]" italics="true" pageId="6" pageNumber="693">Palaeastacus</emphasis>
|
||
</taxonomicName>
|
||
(
|
||
<figureCitation id="63EA899EFFC1FFB2FD6DF867A683CC8D" box="[666,722,1937,1963]" captionStart="FIG" captionStartId="8.[132,143,1657,1674]" captionTargetBox="[132,1455,215,1605]" captionTargetId="figure-122@8.[131,1487,214,1605]" captionTargetPageId="8" captionText="FIG. 2. — Comparison of epistomes in fossil and extant crayfishes: A, B, epistome of P. licenti (NIGP-Shen-26), photo (A) and interpretative line-drawing (B); C, epistome of P. licenti (NIGP-Shen-40);D, epistome of a female Cambaroides dauricus (Pallas, 1972) (MNHN-IU-2022-4077, extant, Mandchuria);E, Cambarus bartonii (Fabricius, 1798) (MNHN-IU-2022-4074, extant, Philadelphia, United States); F, Astacus astacus (Linnaeus, 1758) (MNHN-IU-2022-4069, extant, Nissi, Greece). Photos of fossil specimens in cross-polarized light. Abbreviations: a1, antennula; a2.ba, antennal basipodite; a2.cx, antennal coxa; epi, epistome; uo, urinary orifice (nephropore). Photographs: D. Audo. Scale bars: 2 mm." figureDoi="http://doi.org/10.5281/zenodo.10376400" httpUri="https://zenodo.org/record/10376400/files/figure.png" pageId="6" pageNumber="693">Fig.2</figureCitation>
|
||
A-C) is similar to that of
|
||
<taxonomicName id="3CD1EE98FFC1FFB2FEBDF847A581CCED" authorityName="Faxon" authorityYear="1884" box="[330,464,1969,1995]" class="Malacostraca" family="Cambaroididae" genus="Cambaroides" kingdom="Animalia" order="Decapoda" pageId="6" pageNumber="693" phylum="Arthropoda" rank="genus">
|
||
<emphasis id="C9A54909FFC1FFB2FEBDF847A581CCED" box="[330,464,1969,1995]" italics="true" pageId="6" pageNumber="693">Cambaroides</emphasis>
|
||
</taxonomicName>
|
||
(
|
||
<figureCitation id="63EA899EFFC1FFB2FE17F847A662CCEA" box="[480,563,1969,1996]" captionStart="FIG" captionStartId="8.[132,143,1657,1674]" captionTargetBox="[132,1455,215,1605]" captionTargetId="figure-122@8.[131,1487,214,1605]" captionTargetPageId="8" captionText="FIG. 2. — Comparison of epistomes in fossil and extant crayfishes: A, B, epistome of P. licenti (NIGP-Shen-26), photo (A) and interpretative line-drawing (B); C, epistome of P. licenti (NIGP-Shen-40);D, epistome of a female Cambaroides dauricus (Pallas, 1972) (MNHN-IU-2022-4077, extant, Mandchuria);E, Cambarus bartonii (Fabricius, 1798) (MNHN-IU-2022-4074, extant, Philadelphia, United States); F, Astacus astacus (Linnaeus, 1758) (MNHN-IU-2022-4069, extant, Nissi, Greece). Photos of fossil specimens in cross-polarized light. Abbreviations: a1, antennula; a2.ba, antennal basipodite; a2.cx, antennal coxa; epi, epistome; uo, urinary orifice (nephropore). Photographs: D. Audo. Scale bars: 2 mm." figureDoi="http://doi.org/10.5281/zenodo.10376400" httpUri="https://zenodo.org/record/10376400/files/figure.png" pageId="6" pageNumber="693">Fig. 2D</figureCitation>
|
||
, see also
|
||
<bibRefCitation id="9F40E8EAFFC1FFB2FD7AF847A49FCCCD" author="KAWAI T. & MACHINO Y. & KO H. S." pageId="6" pageNumber="693" pagination="191 - 196" refId="ref12408" refString="KAWAI T., MACHINO Y. & KO H. S. 2003. - Reassessment of Cambaroides dauricus and C. schrenckii (Crustacea: Decapoda: Cambaridae). Korean Journal of Biological Sciences 7 (3): 191 - 196. https: // doi. org / 10.1080 / 12265071.2003.9647704" type="journal article" year="2003">
|
||
Kawai
|
||
<emphasis id="C9A54909FFC1FFB2FD21F844A756CCED" box="[726,775,1969,1995]" italics="true" pageId="6" pageNumber="693">et al.</emphasis>
|
||
(2003)
|
||
</bibRefCitation>
|
||
for illustrations of epistomes in several
|
||
<taxonomicName id="3CD1EE98FFC1FFB2FD99F827A6A4CCCD" authorityName="Faxon" authorityYear="1884" box="[622,757,2001,2027]" class="Malacostraca" family="Cambaroididae" genus="Cambaroides" kingdom="Animalia" order="Decapoda" pageId="6" pageNumber="693" phylum="Arthropoda" rank="genus">
|
||
<emphasis id="C9A54909FFC1FFB2FD99F827A6A4CCCD" box="[622,757,2001,2027]" italics="true" pageId="6" pageNumber="693">Cambaroides</emphasis>
|
||
</taxonomicName>
|
||
): there is no spine on the epistome except for that of the cephalic lobe (
|
||
<figureCitation id="63EA899EFFC1FFB2FC9CF847A7B0CCED" box="[875,993,1969,1995]" captionStart="FIG" captionStartId="8.[132,143,1657,1674]" captionTargetBox="[132,1455,215,1605]" captionTargetId="figure-122@8.[131,1487,214,1605]" captionTargetPageId="8" captionText="FIG. 2. — Comparison of epistomes in fossil and extant crayfishes: A, B, epistome of P. licenti (NIGP-Shen-26), photo (A) and interpretative line-drawing (B); C, epistome of P. licenti (NIGP-Shen-40);D, epistome of a female Cambaroides dauricus (Pallas, 1972) (MNHN-IU-2022-4077, extant, Mandchuria);E, Cambarus bartonii (Fabricius, 1798) (MNHN-IU-2022-4074, extant, Philadelphia, United States); F, Astacus astacus (Linnaeus, 1758) (MNHN-IU-2022-4069, extant, Nissi, Greece). Photos of fossil specimens in cross-polarized light. Abbreviations: a1, antennula; a2.ba, antennal basipodite; a2.cx, antennal coxa; epi, epistome; uo, urinary orifice (nephropore). Photographs: D. Audo. Scale bars: 2 mm." figureDoi="http://doi.org/10.5281/zenodo.10376400" httpUri="https://zenodo.org/record/10376400/files/figure.png" pageId="6" pageNumber="693">Fig. 2A, C</figureCitation>
|
||
; contrary to
|
||
<taxonomicName id="3CD1EE98FFC1FFB2FB98F847A089CCED" authorityName="Latreille" authorityYear="1802" box="[1135,1240,1969,1995]" class="Malacostraca" family="Astacidae" kingdom="Animalia" order="Decapoda" pageId="6" pageNumber="693" phylum="Arthropoda" rank="family">Astacidae</taxonomicName>
|
||
, which have spines; see
|
||
<figureCitation id="63EA899EFFC1FFB2FCA2F827A7F9CCCD" box="[853,936,2001,2027]" captionStart="FIG" captionStartId="8.[132,143,1657,1674]" captionTargetBox="[132,1455,215,1605]" captionTargetId="figure-122@8.[131,1487,214,1605]" captionTargetPageId="8" captionText="FIG. 2. — Comparison of epistomes in fossil and extant crayfishes: A, B, epistome of P. licenti (NIGP-Shen-26), photo (A) and interpretative line-drawing (B); C, epistome of P. licenti (NIGP-Shen-40);D, epistome of a female Cambaroides dauricus (Pallas, 1972) (MNHN-IU-2022-4077, extant, Mandchuria);E, Cambarus bartonii (Fabricius, 1798) (MNHN-IU-2022-4074, extant, Philadelphia, United States); F, Astacus astacus (Linnaeus, 1758) (MNHN-IU-2022-4069, extant, Nissi, Greece). Photos of fossil specimens in cross-polarized light. Abbreviations: a1, antennula; a2.ba, antennal basipodite; a2.cx, antennal coxa; epi, epistome; uo, urinary orifice (nephropore). Photographs: D. Audo. Scale bars: 2 mm." figureDoi="http://doi.org/10.5281/zenodo.10376400" httpUri="https://zenodo.org/record/10376400/files/figure.png" pageId="6" pageNumber="693">Fig. 2E</figureCitation>
|
||
), a wide cephalic lobe (about 30% of the total width, contrary to North American
|
||
<taxonomicName id="3CD1EE98FFC0FFB3FE0EFF21A62BCBD7" authorityName="Hobbs" authorityYear="1942" box="[505,634,215,241]" class="Malacostraca" family="Cambaridae" kingdom="Animalia" order="Decapoda" pageId="7" pageNumber="694" phylum="Arthropoda" rank="family">Cambaridae</taxonomicName>
|
||
(
|
||
<figureCitation id="63EA899EFFC0FFB3FD7FFF21A683CBD7" box="[648,722,215,241]" captionStart="FIG" captionStartId="8.[132,143,1657,1674]" captionTargetBox="[132,1455,215,1605]" captionTargetId="figure-122@8.[131,1487,214,1605]" captionTargetPageId="8" captionText="FIG. 2. — Comparison of epistomes in fossil and extant crayfishes: A, B, epistome of P. licenti (NIGP-Shen-26), photo (A) and interpretative line-drawing (B); C, epistome of P. licenti (NIGP-Shen-40);D, epistome of a female Cambaroides dauricus (Pallas, 1972) (MNHN-IU-2022-4077, extant, Mandchuria);E, Cambarus bartonii (Fabricius, 1798) (MNHN-IU-2022-4074, extant, Philadelphia, United States); F, Astacus astacus (Linnaeus, 1758) (MNHN-IU-2022-4069, extant, Nissi, Greece). Photos of fossil specimens in cross-polarized light. Abbreviations: a1, antennula; a2.ba, antennal basipodite; a2.cx, antennal coxa; epi, epistome; uo, urinary orifice (nephropore). Photographs: D. Audo. Scale bars: 2 mm." figureDoi="http://doi.org/10.5281/zenodo.10376400" httpUri="https://zenodo.org/record/10376400/files/figure.png" pageId="7" pageNumber="694">Fig. 2F</figureCitation>
|
||
) and
|
||
<taxonomicName id="3CD1EE98FFC0FFB3FF75FF01A4AACA37" authorityName="Bott" authorityYear="1950" box="[130,251,247,273]" class="Malacostraca" family="Astacidae" genus="Pacifastacus" kingdom="Animalia" order="Decapoda" pageId="7" pageNumber="694" phylum="Arthropoda" rank="genus">
|
||
<emphasis id="C9A54909FFC0FFB3FF75FF01A4AACA37" box="[130,251,247,273]" italics="true" pageId="7" pageNumber="694">Pacifastacus</emphasis>
|
||
</taxonomicName>
|
||
, in which the cephalic lobe is narrower than 30% of total width; see NIGP-Shen-12, NIGP-Shen26, NIGP-Shen-38), and there is a cephalic median central projection on the cephalic lobe (
|
||
<figureCitation id="63EA899EFFC0FFB3FEB5FEA1A5C2CA57" box="[322,403,343,369]" captionStart="FIG" captionStartId="8.[132,143,1657,1674]" captionTargetBox="[132,1455,215,1605]" captionTargetId="figure-122@8.[131,1487,214,1605]" captionTargetPageId="8" captionText="FIG. 2. — Comparison of epistomes in fossil and extant crayfishes: A, B, epistome of P. licenti (NIGP-Shen-26), photo (A) and interpretative line-drawing (B); C, epistome of P. licenti (NIGP-Shen-40);D, epistome of a female Cambaroides dauricus (Pallas, 1972) (MNHN-IU-2022-4077, extant, Mandchuria);E, Cambarus bartonii (Fabricius, 1798) (MNHN-IU-2022-4074, extant, Philadelphia, United States); F, Astacus astacus (Linnaeus, 1758) (MNHN-IU-2022-4069, extant, Nissi, Greece). Photos of fossil specimens in cross-polarized light. Abbreviations: a1, antennula; a2.ba, antennal basipodite; a2.cx, antennal coxa; epi, epistome; uo, urinary orifice (nephropore). Photographs: D. Audo. Scale bars: 2 mm." figureDoi="http://doi.org/10.5281/zenodo.10376400" httpUri="https://zenodo.org/record/10376400/files/figure.png" pageId="7" pageNumber="694">Fig. 2C</figureCitation>
|
||
, as in
|
||
<taxonomicName id="3CD1EE98FFC0FFB3FE38FEA1A604CA57" authorityName="Faxon" authorityYear="1884" box="[463,597,343,369]" class="Malacostraca" family="Cambaroididae" genus="Cambaroides" kingdom="Animalia" order="Decapoda" pageId="7" pageNumber="694" phylum="Arthropoda" rank="genus">
|
||
<emphasis id="C9A54909FFC0FFB3FE38FEA1A604CA57" box="[463,597,343,369]" italics="true" pageId="7" pageNumber="694">Cambaroides</emphasis>
|
||
</taxonomicName>
|
||
<figureCitation id="63EA899EFFC0FFB3FDABFEA1A6FECA57" box="[604,687,343,369]" captionStart="FIG" captionStartId="8.[132,143,1657,1674]" captionTargetBox="[132,1455,215,1605]" captionTargetId="figure-122@8.[131,1487,214,1605]" captionTargetPageId="8" captionText="FIG. 2. — Comparison of epistomes in fossil and extant crayfishes: A, B, epistome of P. licenti (NIGP-Shen-26), photo (A) and interpretative line-drawing (B); C, epistome of P. licenti (NIGP-Shen-40);D, epistome of a female Cambaroides dauricus (Pallas, 1972) (MNHN-IU-2022-4077, extant, Mandchuria);E, Cambarus bartonii (Fabricius, 1798) (MNHN-IU-2022-4074, extant, Philadelphia, United States); F, Astacus astacus (Linnaeus, 1758) (MNHN-IU-2022-4069, extant, Nissi, Greece). Photos of fossil specimens in cross-polarized light. Abbreviations: a1, antennula; a2.ba, antennal basipodite; a2.cx, antennal coxa; epi, epistome; uo, urinary orifice (nephropore). Photographs: D. Audo. Scale bars: 2 mm." figureDoi="http://doi.org/10.5281/zenodo.10376400" httpUri="https://zenodo.org/record/10376400/files/figure.png" pageId="7" pageNumber="694">Fig. 2D</figureCitation>
|
||
). Beside the rostrum, the presence of a telson diaeresis (articulation), two pairs of gonopods, the probable presence of ischial hooks (on the
|
||
<typeStatus id="246A2BB9FFC0FFB3FF2DFE40A568CAF6" box="[218,313,438,464]" pageId="7" pageNumber="694" type="holotype">holotype</typeStatus>
|
||
of
|
||
<taxonomicName id="3CD1EE98FFC0FFB3FE96FE41A593CAF6" authorityName="Taylor, Schram & Shen" authorityYear="1999" box="[353,450,438,465]" class="Malacostraca" family="Cricoidoscelosidae" genus="Cricoidoscelosus" higherTaxonomySource="GBIF" kingdom="Animalia" order="Decapoda" pageId="7" pageNumber="694" phylum="Arthropoda" rank="species" species="aethus">
|
||
<emphasis id="C9A54909FFC0FFB3FE96FE41A593CAF6" box="[353,450,438,465]" italics="true" pageId="7" pageNumber="694">C. aethus</emphasis>
|
||
</taxonomicName>
|
||
, NIGP-126337,
|
||
<figureCitation id="63EA899EFFC0FFB3FD76FE40A693CAF7" box="[641,706,438,465]" captionStart="FIG" captionStartId="9.[132,143,1768,1785]" captionTargetBox="[132,1455,215,1732]" captionTargetId="figure-74@9.[-62,1107,214,1736]" captionTargetPageId="9" captionText="FIG. 3. — Ischial hooks in P. licenti: A-D, on specimen NIGP-126337 (holotype of Cricoidoscelosus aethus), ventral view in cross-polarized light (A) and interpretative line-drawing (B); C, D, detailed view of the base of P2-P4 (th5-th7) (C), and interpretative line drawing (D) – note that C and D are aligned horizontally for convenience;E, F, on specimen NIGP-Shen-22,detail of the ischium of P4 (th7). Abbreviations: a1, antennula;a2, antenna; ba, basipod;cx, coxa;epi, epistome; ex, uropodal exopod; go, male gonopod; isc, ischium; md, mandible; me, merus; mxp3, maxilliped 3 (thoracopod 3); P1-P5, pereiopods 1-5 (thoracopod 4-8); pl3, pleopod 3; r, rostrum; s2, pleonite 2; sc, scaphocerite. Photographs: A, D. Audo; C, E, D.-Y. Huang. Scale bars: A, B, 20 mm; C-F, 2 mm." figureDoi="http://doi.org/10.5281/zenodo.10376402" httpUri="https://zenodo.org/record/10376402/files/figure.png" pageId="7" pageNumber="694">Figs 3</figureCitation>
|
||
A-3D, possibly on specimen NIGP-Shen-22,
|
||
<figureCitation id="63EA899EFFC0FFB3FDE4FE20A61FCAD6" box="[531,590,470,496]" captionStart="FIG" captionStartId="9.[132,143,1768,1785]" captionTargetBox="[132,1455,215,1732]" captionTargetId="figure-74@9.[-62,1107,214,1736]" captionTargetPageId="9" captionText="FIG. 3. — Ischial hooks in P. licenti: A-D, on specimen NIGP-126337 (holotype of Cricoidoscelosus aethus), ventral view in cross-polarized light (A) and interpretative line-drawing (B); C, D, detailed view of the base of P2-P4 (th5-th7) (C), and interpretative line drawing (D) – note that C and D are aligned horizontally for convenience;E, F, on specimen NIGP-Shen-22,detail of the ischium of P4 (th7). Abbreviations: a1, antennula;a2, antenna; ba, basipod;cx, coxa;epi, epistome; ex, uropodal exopod; go, male gonopod; isc, ischium; md, mandible; me, merus; mxp3, maxilliped 3 (thoracopod 3); P1-P5, pereiopods 1-5 (thoracopod 4-8); pl3, pleopod 3; r, rostrum; s2, pleonite 2; sc, scaphocerite. Photographs: A, D. Audo; C, E, D.-Y. Huang. Scale bars: A, B, 20 mm; C-F, 2 mm." figureDoi="http://doi.org/10.5281/zenodo.10376402" httpUri="https://zenodo.org/record/10376402/files/figure.png" pageId="7" pageNumber="694">Fig. 3</figureCitation>
|
||
E-F, although our evidence is ambiguous due to preservation, ischial hooks may be present on specimens and NIGPAS-Shen-3, 5, 14, 32), all are similar to
|
||
<taxonomicName id="3CD1EE98FFC0FFB3FEE5FDC0A5C8C976" authorityName="Faxon" authorityYear="1884" box="[274,409,566,592]" class="Malacostraca" family="Cambaroididae" genus="Cambaroides" kingdom="Animalia" order="Decapoda" pageId="7" pageNumber="694" phylum="Arthropoda" rank="genus">
|
||
<emphasis id="C9A54909FFC0FFB3FEE5FDC0A5C8C976" box="[274,409,566,592]" italics="true" pageId="7" pageNumber="694">Cambaroides</emphasis>
|
||
</taxonomicName>
|
||
. We note that it is not unexpected that
|
||
<bibRefCitation id="9F40E8EAFFC0FFB3FF40FDA0A5DAC956" author="TAYLOR R. S. & SCHRAM F. R. & SHEN Y. - B." box="[183,395,598,624]" pageId="7" pageNumber="694" pagination="121 - 136" refId="ref13937" refString="TAYLOR R. S., SCHRAM F. R. & SHEN Y. - B. 1999. - A new crayfish family (Decapoda: Astacida) from the Upper Jurassic of China, with a reinterpretation of other Chinese crayfish taxa. Paleontological Research 3 (2): 121 - 136." type="journal article" year="1999">
|
||
Taylor
|
||
<emphasis id="C9A54909FFC0FFB3FEF3FDA1A568C956" box="[260,313,598,624]" italics="true" pageId="7" pageNumber="694">et al.</emphasis>
|
||
(1999)
|
||
</bibRefCitation>
|
||
and
|
||
<bibRefCitation id="9F40E8EAFFC0FFB3FE31FDA0A6DBC956" author="SHEN Y. - B. & SHRAM F. R. & TAYLOR R. S." box="[454,650,598,624]" pageId="7" pageNumber="694" pagination="26 - 33" refId="ref13672" refString="SHEN Y. - B., SHRAM F. R. & TAYLOR R. S. 2001. - Morphological variation in fossil crayfish of the Jehol biota, Liaoning Province, China and its texonomic discrimination. Chinese Science Bulletin 46 (1): 26 - 33. https: // doi. org / 10.1007 / BF 03183202" type="journal article" year="2001">
|
||
Shen
|
||
<emphasis id="C9A54909FFC0FFB3FDF4FDA1A669C956" box="[515,568,598,624]" italics="true" pageId="7" pageNumber="694">et al.</emphasis>
|
||
(2001)
|
||
</bibRefCitation>
|
||
could miss this structure: it is only present in males of
|
||
<taxonomicName id="3CD1EE98FFC0FFB3FDA7FD80A686C9B6" authorityName="Faxon" authorityYear="1884" box="[592,727,630,656]" class="Malacostraca" family="Cambaroididae" genus="Cambaroides" kingdom="Animalia" order="Decapoda" pageId="7" pageNumber="694" phylum="Arthropoda" rank="genus">
|
||
<emphasis id="C9A54909FFC0FFB3FDA7FD80A686C9B6" box="[592,727,630,656]" italics="true" pageId="7" pageNumber="694">Cambaroides</emphasis>
|
||
</taxonomicName>
|
||
and
|
||
<taxonomicName id="3CD1EE98FFC0FFB3FF73FD60A55BC996" authorityName="Hobbs" authorityYear="1942" box="[132,266,662,688]" class="Malacostraca" family="Cambaridae" kingdom="Animalia" order="Decapoda" pageId="7" pageNumber="694" phylum="Arthropoda" rank="family">Cambaridae</taxonomicName>
|
||
, is rather small and placed on the inner margin of the ischium of periopods 2-4 (often only on two pairs:
|
||
<figureCitation id="63EA899EFFC0FFB3FF71FD23A48AC9D6" box="[134,219,725,752]" captionStart="FIG" captionStartId="10.[132,143,1802,1819]" captionTargetBox="[133,1455,215,1767]" captionTargetId="figure-72@10.[132,1455,215,1772]" captionTargetPageId="10" captionText="FIG. 4. — Sexual dimorphism: A, B, Cambaroides dauricus(AS11,extant,Mandchuria) male (A) and female (B); C, D, possible annulus ventralis in Palaeocambarus licenti (Van Straelen, 1928) specimen NIGP-126342 from the Early Cretaceous of China, photograph (C) and interpretative line-drawing (D); E, annulus ventralis in Cambarus bartonii (Fabricius,1798) (AS90,extant, Philadelphia,United States);Abbreviations: av, annulus ventralis;av?, potential annulus ventralis; gp♀, female gonopore; gp♂, male gonopore; pl1-2♂, pleopods 1-2 (male gonopods). Photographs: D. Audo. Scale bars: A, B, E, 5 mm; C, D, 2 mm." figureDoi="http://doi.org/10.5281/zenodo.10376404" httpUri="https://zenodo.org/record/10376404/files/figure.png" pageId="7" pageNumber="694">Fig. 4A</figureCitation>
|
||
, compare with
|
||
<figureCitation id="63EA899EFFC0FFB3FE7BFD23A58EC9D6" box="[396,479,725,752]" captionStart="FIG" captionStartId="10.[132,143,1802,1819]" captionTargetBox="[133,1455,215,1767]" captionTargetId="figure-72@10.[132,1455,215,1772]" captionTargetPageId="10" captionText="FIG. 4. — Sexual dimorphism: A, B, Cambaroides dauricus(AS11,extant,Mandchuria) male (A) and female (B); C, D, possible annulus ventralis in Palaeocambarus licenti (Van Straelen, 1928) specimen NIGP-126342 from the Early Cretaceous of China, photograph (C) and interpretative line-drawing (D); E, annulus ventralis in Cambarus bartonii (Fabricius,1798) (AS90,extant, Philadelphia,United States);Abbreviations: av, annulus ventralis;av?, potential annulus ventralis; gp♀, female gonopore; gp♂, male gonopore; pl1-2♂, pleopods 1-2 (male gonopods). Photographs: D. Audo. Scale bars: A, B, E, 5 mm; C, D, 2 mm." figureDoi="http://doi.org/10.5281/zenodo.10376404" httpUri="https://zenodo.org/record/10376404/files/figure.png" pageId="7" pageNumber="694">Fig. 4B</figureCitation>
|
||
), so is rarely noticeable in fossils, and is even difficult to see on radiographic images of extant specimens. Examination of the
|
||
<typeStatus id="246A2BB9FFC0FFB3FDE7FCE0A635C816" box="[528,612,790,816]" pageId="7" pageNumber="694" type="neotype">neotype</typeStatus>
|
||
NIGP-126342 shows that the sternite between pereiopods 4-5 (
|
||
<figureCitation id="63EA899EFFC0FFB3FD7DFCC3A6AFC869" box="[650,766,821,847]" captionStart="FIG" captionStartId="10.[132,143,1802,1819]" captionTargetBox="[133,1455,215,1767]" captionTargetId="figure-72@10.[132,1455,215,1772]" captionTargetPageId="10" captionText="FIG. 4. — Sexual dimorphism: A, B, Cambaroides dauricus(AS11,extant,Mandchuria) male (A) and female (B); C, D, possible annulus ventralis in Palaeocambarus licenti (Van Straelen, 1928) specimen NIGP-126342 from the Early Cretaceous of China, photograph (C) and interpretative line-drawing (D); E, annulus ventralis in Cambarus bartonii (Fabricius,1798) (AS90,extant, Philadelphia,United States);Abbreviations: av, annulus ventralis;av?, potential annulus ventralis; gp♀, female gonopore; gp♂, male gonopore; pl1-2♂, pleopods 1-2 (male gonopods). Photographs: D. Audo. Scale bars: A, B, E, 5 mm; C, D, 2 mm." figureDoi="http://doi.org/10.5281/zenodo.10376404" httpUri="https://zenodo.org/record/10376404/files/figure.png" pageId="7" pageNumber="694">Fig. 4C, D</figureCitation>
|
||
) does not form an annulus ventralis with a hemicircular fold like that of
|
||
<taxonomicName id="3CD1EE98FFC0FFB3FEFAFC83A52BC8A9" authorityName="Erichson" authorityYear="1846" box="[269,378,885,911]" class="Malacostraca" family="Cambaridae" genus="Cambarus" kingdom="Animalia" order="Decapoda" pageId="7" pageNumber="694" phylum="Arthropoda" rank="genus">
|
||
<emphasis id="C9A54909FFC0FFB3FEFAFC83A52BC8A9" box="[269,378,885,911]" italics="true" pageId="7" pageNumber="694">Cambarus</emphasis>
|
||
</taxonomicName>
|
||
. It resembles, however, the smaller annulus ventralis found in
|
||
<taxonomicName id="3CD1EE98FFC0FFB3FE47FC63A664C889" authorityName="Faxon" authorityYear="1884" box="[432,565,917,943]" class="Malacostraca" family="Cambaroididae" genus="Cambaroides" kingdom="Animalia" order="Decapoda" pageId="7" pageNumber="694" phylum="Arthropoda" rank="genus">
|
||
<emphasis id="C9A54909FFC0FFB3FE47FC63A664C889" box="[432,565,917,943]" italics="true" pageId="7" pageNumber="694">Cambaroides</emphasis>
|
||
</taxonomicName>
|
||
. For these reasons, we propose an assignment to
|
||
<taxonomicName id="3CD1EE98FFC0FFB3FE2CFC43A490C8C9" authority="Villalobos, 1955" authorityName="Villalobos" authorityYear="1955" class="Malacostraca" family="Cambaroididae" kingdom="Animalia" order="Decapoda" pageId="7" pageNumber="694" phylum="Arthropoda" rank="family">Cambaroididae Villalobos, 1955</taxonomicName>
|
||
. This placement is in line with the geographic origin of
|
||
<taxonomicName id="3CD1EE98FFC0FFB3FF55FC02A519CF28" authorityName="Taylor, Schram & Shen" authorityYear="1999" box="[162,328,1012,1038]" class="Malacostraca" family="Cambaridae" genus="Palaeocambarus" higherTaxonomySource="GBIF" kingdom="Animalia" order="Decapoda" pageId="7" pageNumber="694" phylum="Arthropoda" rank="genus">
|
||
<emphasis id="C9A54909FFC0FFB3FF55FC02A519CF28" box="[162,328,1012,1038]" italics="true" pageId="7" pageNumber="694">Palaeocambarus</emphasis>
|
||
</taxonomicName>
|
||
, indeed,
|
||
<taxonomicName id="3CD1EE98FFC0FFB3FE58FC02A604CF28" authorityName="Villalobos" authorityYear="1955" box="[431,597,1012,1038]" class="Malacostraca" family="Cambaroididae" kingdom="Animalia" order="Decapoda" pageId="7" pageNumber="694" phylum="Arthropoda" rank="family">Cambaroididae</taxonomicName>
|
||
are only known to occur in
|
||
<collectingCountry id="83C6D58BFFC0FFB3FEF4FBE3A534CF08" box="[259,357,1044,1071]" name="China" pageId="7" pageNumber="694">East Asia</collectingCountry>
|
||
(eastern
|
||
<collectingCountry id="83C6D58BFFC0FFB3FE3FFBE2A65ACF08" box="[456,523,1044,1070]" name="China" pageId="7" pageNumber="694">China</collectingCountry>
|
||
and
|
||
<collectingCountry id="83C6D58BFFC0FFB3FDB5FBE2A6DBCF08" box="[578,650,1044,1070]" name="Russia" pageId="7" pageNumber="694">Russia</collectingCountry>
|
||
, North and
|
||
<collectingCountry id="83C6D58BFFC0FFB3FF72FBC2A542CF69" box="[133,275,1076,1103]" name="South Korea" pageId="7" pageNumber="694">South Korea</collectingCountry>
|
||
,
|
||
<collectingCountry id="83C6D58BFFC0FFB3FED7FBC3A530CF69" box="[288,353,1077,1103]" name="Japan" pageId="7" pageNumber="694">Japan</collectingCountry>
|
||
,
|
||
<collectingCountry id="83C6D58BFFC0FFB3FE99FBC2A58DCF68" box="[366,476,1076,1102]" name="Mongolia" pageId="7" pageNumber="694">Mongolia</collectingCountry>
|
||
:
|
||
<bibRefCitation id="9F40E8EAFFC0FFB3FE1DFBC2A6FCCF68" author="KAWAI T. & MACHINO Y. & KO H. S." box="[490,685,1076,1102]" pageId="7" pageNumber="694" pagination="191 - 196" refId="ref12408" refString="KAWAI T., MACHINO Y. & KO H. S. 2003. - Reassessment of Cambaroides dauricus and C. schrenckii (Crustacea: Decapoda: Cambaridae). Korean Journal of Biological Sciences 7 (3): 191 - 196. https: // doi. org / 10.1080 / 12265071.2003.9647704" type="journal article" year="2003">
|
||
Kawai
|
||
<emphasis id="C9A54909FFC0FFB3FDC2FBC3A63DCF68" box="[565,620,1076,1102]" italics="true" pageId="7" pageNumber="694">et al.</emphasis>
|
||
2003
|
||
</bibRefCitation>
|
||
,
|
||
<bibRefCitation id="9F40E8EAFFC0FFB3FD49FBC2A6A9CF68" author="KAWAI T. & MIN G. - S. & BARABANSHCHIKOV E. & LABAY V. & KO H. S." box="[702,760,1076,1102]" pageId="7" pageNumber="694" pagination="313 - 368" refId="ref12535" refString="KAWAI T., MIN G. - S., BARABANSHCHIKOV E., LABAY V. & KO H. S. 2016. - Asia, in KAWAI T., FAULKES Z. & SCHOLTZ G. (eds), Freshwater Crayfish, a Global Overview. CRC Press, Boca Raton, London, New York: 313 - 368." type="book chapter" year="2016">2016</bibRefCitation>
|
||
). Ďuriš &
|
||
<bibRefCitation id="9F40E8EAFFC0FFB3FF14FBA2A5DFCF49" author="PETRUSEK A. & KOZAK P. & BURIC M. & HORKA I. & KOUBA A. & KOZUBIKOVA-BALCAROVA E. & POLICAR T." box="[227,398,1108,1135]" pageId="7" pageNumber="694" pagination="39 - 58" refId="ref11299" refString="DURIs Z. & PETRUSEK A. 2015. - Evolution and historical biogeography of crayfishes, in KOZAK P., DURIs Z., BURIC M., HORKA I., KOUBA A., KOZUBIKOVA-BALCAROVA E. & POLICAR T. (eds), Crayfish Biology and Culture. Faculty of Fisheries and protection of waters, University of South Bohemia, Vodnany: 39 - 58." type="book chapter" year="2015">Petrusek (2015)</bibRefCitation>
|
||
and
|
||
<bibRefCitation id="9F40E8EAFFC0FFB3FE48FBA2A754CF48" author="SCHRAM F. R. & KOENEMANN S." box="[447,773,1108,1135]" pageId="7" pageNumber="694" refId="ref13268" refString="SCHRAM F. R. & KOENEMANN S. 2022. - Evolution and Phylogeny of Pancrustacea: A Story of Scientific Method. Oxford University Press, New York. https: // doi. org / 10.1093 / oso / 9780195365764.001.0001" type="book" year="2022">Schram & Koenemann (2022)</bibRefCitation>
|
||
also suggested a possibly close relationship between
|
||
<taxonomicName id="3CD1EE98FFC0FFB3FD4BFB82A4B6CF88" authorityName="Taylor, Schram & Shen" authorityYear="1999" class="Malacostraca" family="Cambaridae" genus="Palaeocambarus" higherTaxonomySource="GBIF" kingdom="Animalia" order="Decapoda" pageId="7" pageNumber="694" phylum="Arthropoda" rank="genus">
|
||
<emphasis id="C9A54909FFC0FFB3FD4BFB82A4B6CF88" italics="true" pageId="7" pageNumber="694">Palaeocambarus</emphasis>
|
||
</taxonomicName>
|
||
and modern East-Asian crayfishes.
|
||
</paragraph>
|
||
<paragraph id="FB6E951BFFC0FFB3FF6CFB42A50ACECB" blockId="7.[130,777,215,2028]" pageId="7" pageNumber="694">
|
||
For all these reasons, we consider
|
||
<taxonomicName id="3CD1EE98FFC0FFB3FDE7FB42A520CFC8" authority="Taylor, Schram & Shen, 1999" authorityName="Taylor, Schram & Shen" authorityYear="1999" class="Malacostraca" family="Cambaridae" genus="Palaeocambarus" higherTaxonomySource="GBIF" kingdom="Animalia" order="Decapoda" pageId="7" pageNumber="694" phylum="Arthropoda" rank="genus">
|
||
<emphasis id="C9A54909FFC0FFB3FDE7FB42A6E7CFE8" box="[528,694,1204,1230]" italics="true" pageId="7" pageNumber="694">Palaeocambarus</emphasis>
|
||
<bibRefCitation id="9F40E8EAFFC0FFB3FD4AFB42A520CFC8" author="TAYLOR R. S. & SCHRAM F. R. & SHEN Y. - B." pageId="7" pageNumber="694" pagination="121 - 136" refId="ref13937" refString="TAYLOR R. S., SCHRAM F. R. & SHEN Y. - B. 1999. - A new crayfish family (Decapoda: Astacida) from the Upper Jurassic of China, with a reinterpretation of other Chinese crayfish taxa. Paleontological Research 3 (2): 121 - 136." type="journal article" year="1999">Taylor, Schram & Shen, 1999</bibRefCitation>
|
||
</taxonomicName>
|
||
and
|
||
<taxonomicName id="3CD1EE98FFC0FFB3FE55FB22A553CE28" authority="Taylor, Schram & Shen, 1999" authorityName="Taylor, Schram & Shen" authorityYear="1999" class="Malacostraca" family="Cricoidoscelosidae" genus="Cricoidoscelosus" higherTaxonomySource="GBIF" kingdom="Animalia" order="Decapoda" pageId="7" pageNumber="694" phylum="Arthropoda" rank="genus">
|
||
<emphasis id="C9A54909FFC0FFB3FE55FB22A612CFC8" box="[418,579,1236,1262]" italics="true" pageId="7" pageNumber="694">Cricoidoscelosus</emphasis>
|
||
<bibRefCitation id="9F40E8EAFFC0FFB3FDBDFB22A553CE28" author="TAYLOR R. S. & SCHRAM F. R. & SHEN Y. - B." pageId="7" pageNumber="694" pagination="121 - 136" refId="ref13937" refString="TAYLOR R. S., SCHRAM F. R. & SHEN Y. - B. 1999. - A new crayfish family (Decapoda: Astacida) from the Upper Jurassic of China, with a reinterpretation of other Chinese crayfish taxa. Paleontological Research 3 (2): 121 - 136." type="journal article" year="1999">Taylor, Schram & Shen, 1999</bibRefCitation>
|
||
</taxonomicName>
|
||
to be synonyms. Since these two genera were simultaneously published, we consider
|
||
<taxonomicName id="3CD1EE98FFC0FFB3FDB7FAE5A6BBCE0B" authorityName="Taylor, Schram & Shen" authorityYear="1999" box="[576,746,1299,1325]" class="Malacostraca" family="Cambaridae" genus="Palaeocambarus" higherTaxonomySource="GBIF" kingdom="Animalia" order="Decapoda" pageId="7" pageNumber="694" phylum="Arthropoda" rank="genus">
|
||
<emphasis id="C9A54909FFC0FFB3FDB7FAE5A6BBCE0B" box="[576,746,1299,1325]" italics="true" pageId="7" pageNumber="694">Palaeocambarus</emphasis>
|
||
</taxonomicName>
|
||
as the senior name, under the first reviser principle (
|
||
<bibRefCitation id="9F40E8EAFFC0FFB3FD48FAC5A490CE4B" author="ICZN & INTERNATIONAL COMMISSION ON ZOOLOGICAL NOMENCLATURE" pageId="7" pageNumber="694" refId="ref12010" refString="ICZN (INTERNATIONAL COMMISSION ON ZOOLOGICAL NOMENCLATURE) 1999. - International Code of Zoological Nomenclature, Fourth Edition, v-xxix, 306 p. International Trust for Zoological Nomenclature, Natural Museum, London." type="book" year="1999">ICZN 1999</bibRefCitation>
|
||
: art. 24.2): we believe this choice is more appropriate as the name
|
||
<taxonomicName id="3CD1EE98FFC0FFB3FEE7FA85A5E0CEAB" authorityName="Taylor, Schram & Shen" authorityYear="1999" box="[272,433,1395,1421]" class="Malacostraca" family="Cricoidoscelosidae" genus="Cricoidoscelosus" higherTaxonomySource="GBIF" kingdom="Animalia" order="Decapoda" pageId="7" pageNumber="694" phylum="Arthropoda" rank="genus">
|
||
<emphasis id="C9A54909FFC0FFB3FEE7FA85A5E0CEAB" box="[272,433,1395,1421]" italics="true" pageId="7" pageNumber="694">Cricoidoscelosus</emphasis>
|
||
</taxonomicName>
|
||
refers to the annular pleopods, a character we do not consider as diagnostic, and also,
|
||
<taxonomicName id="3CD1EE98FFC0FFB3FD29FA65A55ACEEB" authorityName="Taylor, Schram & Shen" authorityYear="1999" class="Malacostraca" family="Cambaridae" genus="Palaeocambarus" higherTaxonomySource="GBIF" kingdom="Animalia" order="Decapoda" pageId="7" pageNumber="694" phylum="Arthropoda" rank="genus">
|
||
<emphasis id="C9A54909FFC0FFB3FD29FA65A55ACEEB" italics="true" pageId="7" pageNumber="694">Palaeocambarus</emphasis>
|
||
</taxonomicName>
|
||
appears before
|
||
<taxonomicName id="3CD1EE98FFC0FFB3FE48FA45A635CEEB" authorityName="Taylor, Schram & Shen" authorityYear="1999" box="[447,612,1459,1485]" class="Malacostraca" family="Cricoidoscelosidae" genus="Cricoidoscelosus" higherTaxonomySource="GBIF" kingdom="Animalia" order="Decapoda" pageId="7" pageNumber="694" phylum="Arthropoda" rank="genus">
|
||
<emphasis id="C9A54909FFC0FFB3FE48FA45A635CEEB" box="[447,612,1459,1485]" italics="true" pageId="7" pageNumber="694">Cricoidoscelosus</emphasis>
|
||
</taxonomicName>
|
||
in the text, in
|
||
<bibRefCitation id="9F40E8EAFFC0FFB3FF71FA25A505CECB" author="TAYLOR R. S. & SCHRAM F. R. & SHEN Y. - B." box="[134,340,1491,1517]" pageId="7" pageNumber="694" pagination="121 - 136" refId="ref13937" refString="TAYLOR R. S., SCHRAM F. R. & SHEN Y. - B. 1999. - A new crayfish family (Decapoda: Astacida) from the Upper Jurassic of China, with a reinterpretation of other Chinese crayfish taxa. Paleontological Research 3 (2): 121 - 136." type="journal article" year="1999">
|
||
Taylor
|
||
<emphasis id="C9A54909FFC0FFB3FF27FA22A555CECB" box="[208,260,1491,1517]" italics="true" pageId="7" pageNumber="694">et al.</emphasis>
|
||
(1999)
|
||
</bibRefCitation>
|
||
.
|
||
</paragraph>
|
||
<paragraph id="FB6E951BFFC0FFB3FF6CFA05A6B7CD8A" blockId="7.[130,777,215,2028]" pageId="7" pageNumber="694">
|
||
Although
|
||
<bibRefCitation id="9F40E8EAFFC0FFB3FEFAFA05A5BACD2B" author="TAYLOR R. S. & SCHRAM F. R. & SHEN Y. - B." box="[269,491,1523,1549]" pageId="7" pageNumber="694" pagination="121 - 136" refId="ref13937" refString="TAYLOR R. S., SCHRAM F. R. & SHEN Y. - B. 1999. - A new crayfish family (Decapoda: Astacida) from the Upper Jurassic of China, with a reinterpretation of other Chinese crayfish taxa. Paleontological Research 3 (2): 121 - 136." type="journal article" year="1999">
|
||
Taylor
|
||
<emphasis id="C9A54909FFC0FFB3FEA9FA05A5C7CD2B" box="[350,406,1523,1549]" italics="true" pageId="7" pageNumber="694">et al.</emphasis>
|
||
(1999)
|
||
</bibRefCitation>
|
||
assigned
|
||
<taxonomicName id="3CD1EE98FFC0FFB3FDAAFA05A758CD2B" authorityName="Taylor, Schram & Shen" authorityYear="1999" box="[605,777,1523,1549]" class="Malacostraca" family="Cambaridae" genus="Palaeocambarus" higherTaxonomySource="GBIF" kingdom="Animalia" order="Decapoda" pageId="7" pageNumber="694" phylum="Arthropoda" rank="genus">
|
||
<emphasis id="C9A54909FFC0FFB3FDAAFA05A758CD2B" box="[605,777,1523,1549]" italics="true" pageId="7" pageNumber="694">Palaeocambarus</emphasis>
|
||
</taxonomicName>
|
||
to
|
||
<taxonomicName id="3CD1EE98FFC0FFB3FF53F9E4A57CCD0A" authorityName="Hobbs" authorityYear="1942" box="[164,301,1554,1580]" class="Malacostraca" family="Cambaridae" kingdom="Animalia" order="Decapoda" pageId="7" pageNumber="694" phylum="Arthropoda" rank="family">Cambaridae</taxonomicName>
|
||
, and we assign it to
|
||
<taxonomicName id="3CD1EE98FFC0FFB3FDE1F9E4A693CD0A" authorityName="Villalobos" authorityYear="1955" box="[534,706,1554,1580]" class="Malacostraca" family="Cambaroididae" kingdom="Animalia" order="Decapoda" pageId="7" pageNumber="694" phylum="Arthropoda" rank="family">Cambaroididae</taxonomicName>
|
||
, these assignments are not so different, indeed,
|
||
<bibRefCitation id="9F40E8EAFFC0FFB3FDCFF9C4A756CD6B" author="TAYLOR R. S. & SCHRAM F. R. & SHEN Y. - B." box="[568,775,1586,1613]" pageId="7" pageNumber="694" pagination="121 - 136" refId="ref13937" refString="TAYLOR R. S., SCHRAM F. R. & SHEN Y. - B. 1999. - A new crayfish family (Decapoda: Astacida) from the Upper Jurassic of China, with a reinterpretation of other Chinese crayfish taxa. Paleontological Research 3 (2): 121 - 136." type="journal article" year="1999">
|
||
Taylor
|
||
<emphasis id="C9A54909FFC0FFB3FD73F9C5A6E6CD6A" box="[644,695,1586,1612]" italics="true" pageId="7" pageNumber="694">et al.</emphasis>
|
||
(1999)
|
||
</bibRefCitation>
|
||
considered
|
||
<taxonomicName id="3CD1EE98FFC0FFB3FF09F9A4A5D4CD4A" authorityName="Faxon" authorityYear="1884" box="[254,389,1618,1644]" class="Malacostraca" family="Cambaroididae" genus="Cambaroides" kingdom="Animalia" order="Decapoda" pageId="7" pageNumber="694" phylum="Arthropoda" rank="genus">
|
||
<emphasis id="C9A54909FFC0FFB3FF09F9A4A5D4CD4A" box="[254,389,1618,1644]" italics="true" pageId="7" pageNumber="694">Cambaroides</emphasis>
|
||
</taxonomicName>
|
||
as a
|
||
<taxonomicName id="3CD1EE98FFC0FFB3FE4EF9A4A611CD4A" authorityName="Hobbs" authorityYear="1942" box="[441,576,1618,1644]" class="Malacostraca" family="Cambaridae" kingdom="Animalia" order="Decapoda" pageId="7" pageNumber="694" phylum="Arthropoda" rank="family">Cambaridae</taxonomicName>
|
||
. So, in this regard, we agree withTaylor
|
||
<emphasis id="C9A54909FFC0FFB3FEAAF985A5DFCDAA" box="[349,398,1650,1676]" italics="true" pageId="7" pageNumber="694">et al.</emphasis>
|
||
(1999) that
|
||
<taxonomicName id="3CD1EE98FFC0FFB3FDFAF984A6FECDAA" authorityName="Taylor, Schram & Shen" authorityYear="1999" box="[525,687,1650,1676]" class="Malacostraca" family="Cambaridae" genus="Palaeocambarus" higherTaxonomySource="GBIF" kingdom="Animalia" order="Decapoda" pageId="7" pageNumber="694" phylum="Arthropoda" rank="genus">
|
||
<emphasis id="C9A54909FFC0FFB3FDFAF984A6FECDAA" box="[525,687,1650,1676]" italics="true" pageId="7" pageNumber="694">Palaeocambarus</emphasis>
|
||
</taxonomicName>
|
||
belongs to the same family as modern-days East Asian crayfishes.
|
||
</paragraph>
|
||
<paragraph id="FB6E951BFFC0FFB3FF6CF944A60ACCCD" blockId="7.[130,777,215,2028]" pageId="7" pageNumber="694">
|
||
Another consequence of this synonymy and new familial assignment is the synonymy of
|
||
<taxonomicName id="3CD1EE98FFC0FFB3FE1FF924A52ACC2A" authority="Taylor, Schram & Shen, 1999" authorityName="Taylor, Schram & Shen" authorityYear="1999" class="Malacostraca" family="Cricoidoscelosidae" higherTaxonomySource="GBIF" kingdom="Animalia" order="Decapoda" pageId="7" pageNumber="694" phylum="Arthropoda" rank="family">
|
||
Cricoidoscelosidae
|
||
<bibRefCitation id="9F40E8EAFFC0FFB3FD4BF924A52ACC2A" author="TAYLOR R. S. & SCHRAM F. R. & SHEN Y. - B." pageId="7" pageNumber="694" pagination="121 - 136" refId="ref13937" refString="TAYLOR R. S., SCHRAM F. R. & SHEN Y. - B. 1999. - A new crayfish family (Decapoda: Astacida) from the Upper Jurassic of China, with a reinterpretation of other Chinese crayfish taxa. Paleontological Research 3 (2): 121 - 136." type="journal article" year="1999">Taylor, Schram & Shen, 1999</bibRefCitation>
|
||
</taxonomicName>
|
||
to
|
||
<taxonomicName id="3CD1EE98FFC0FFB3FE56F904A754CC2B" authority="Villalobos, 1955" authorityName="Villalobos" authorityYear="1955" box="[417,773,1778,1805]" class="Malacostraca" family="Cambaroididae" kingdom="Animalia" order="Decapoda" pageId="7" pageNumber="694" phylum="Arthropoda" rank="family">Cambaroididae Villalobos, 1955</taxonomicName>
|
||
.
|
||
<bibRefCitation id="9F40E8EAFFC0FFB3FF72F8E4A595CC0A" author="SCHRAM F. R. & KOENEMANN S." box="[133,452,1810,1836]" pageId="7" pageNumber="694" refId="ref13268" refString="SCHRAM F. R. & KOENEMANN S. 2022. - Evolution and Phylogeny of Pancrustacea: A Story of Scientific Method. Oxford University Press, New York. https: // doi. org / 10.1093 / oso / 9780195365764.001.0001" type="book" year="2022">Schram & Koenemann (2022)</bibRefCitation>
|
||
suggested that
|
||
<taxonomicName id="3CD1EE98FFC0FFB3FDA8F8E4A4F8CC6D" authorityName="Taylor, Schram & Shen" authorityYear="1999" class="Malacostraca" family="Cricoidoscelosidae" higherTaxonomySource="GBIF" kingdom="Animalia" order="Decapoda" pageId="7" pageNumber="694" phylum="Arthropoda" rank="family">Cricoidoscelosidae</taxonomicName>
|
||
may have precedence over
|
||
<taxonomicName id="3CD1EE98FFC0FFB3FE39F8C7A629CC6D" authorityName="Villalobos" authorityYear="1955" box="[462,632,1841,1867]" class="Malacostraca" family="Cambaroididae" kingdom="Animalia" order="Decapoda" pageId="7" pageNumber="694" phylum="Arthropoda" rank="family">Cambaroididae</taxonomicName>
|
||
. We consider that
|
||
<taxonomicName id="3CD1EE98FFC0FFB3FF4FF8A7A50ECC4D" authorityName="Villalobos" authorityYear="1955" box="[184,351,1873,1899]" class="Malacostraca" family="Cambaroididae" kingdom="Animalia" order="Decapoda" pageId="7" pageNumber="694" phylum="Arthropoda" rank="family">Cambaroididae</taxonomicName>
|
||
have precedence over
|
||
<taxonomicName id="3CD1EE98FFC0FFB3FDAEF8A7A4F8CCAD" authorityName="Taylor, Schram & Shen" authorityYear="1999" class="Malacostraca" family="Cricoidoscelosidae" higherTaxonomySource="GBIF" kingdom="Animalia" order="Decapoda" pageId="7" pageNumber="694" phylum="Arthropoda" rank="family">Cricoidoscelosidae</taxonomicName>
|
||
as this family was published as a subfamily earlier than
|
||
<taxonomicName id="3CD1EE98FFC0FFB3FF72F867A500CC8D" authorityName="Taylor, Schram & Shen" authorityYear="1999" box="[133,337,1937,1963]" class="Malacostraca" family="Cricoidoscelosidae" higherTaxonomySource="GBIF" kingdom="Animalia" order="Decapoda" pageId="7" pageNumber="694" phylum="Arthropoda" rank="family">Cricoidoscelosidae</taxonomicName>
|
||
. Also, the name
|
||
<taxonomicName id="3CD1EE98FFC0FFB3FDF7F867A699CC8D" authorityName="Taylor, Schram & Shen" authorityYear="1999" box="[512,712,1937,1963]" class="Malacostraca" family="Cricoidoscelosidae" higherTaxonomySource="GBIF" kingdom="Animalia" order="Decapoda" pageId="7" pageNumber="694" phylum="Arthropoda" rank="family">Cricoidoscelosidae</taxonomicName>
|
||
refers to a character of taphonomic significance, which has little to contribute to the classification of crayfishes.
|
||
</paragraph>
|
||
</subSubSection>
|
||
</treatment>
|
||
</document> |