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<document id="3D400D93C83ED319E4F67A88D5461333" ID-DOI="10.1080/00222930601164445" ID-ISSN="1464-5262" ID-Zenodo-Dep="4669488" IM.materialsCitations_approvedBy="felipe" IM.metadata_approvedBy="felipe" IM.tables_requiresApprovalFor="existingObjects,plazi" IM.taxonomicNames_approvedBy="felipe" checkinTime="1617793824533" checkinUser="carolina" docAuthor="Kotov, Alexey A." docDate="2007" docId="03B687943167FF94FE13FDF1B3EE8F86" docLanguage="en" docName="JNATHIST.41.1-4.13-37.pdf" docOrigin="Journal of Natural History 41 (1 - 4)" docSource="http://dx.doi.org/10.1080/00222930601164445" docStyle="DocumentStyle:5A9EB2ED5589A523F0236C66DE2A6BA8.4:JNatHist.2005-2007.journal_article.1cover" docStyleId="5A9EB2ED5589A523F0236C66DE2A6BA8" docStyleName="JNatHist.2005-2007.journal_article.1cover" docStyleVersion="4" docTitle="Leptodorosida zherikhini Kotov 2007, sp. nov." docType="treatment" docVersion="3" lastPageNumber="20" masterDocId="FF8FFFEC3162FF9CFFF7FFD1B3028912" masterDocTitle="Jurassic Cladocera (Crustacea, Branchiopoda) with a description of an extinct Mesozoic order" masterLastPageNumber="37" masterPageNumber="13" pageNumber="17" updateTime="1698902207508" updateUser="plazi" zenodo-license-document="CC-BY-4.0" zenodo-license-figures="CC-BY-4.0">
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<mods:title id="4F92209F4FC01A0713274DE5D72FF856">Jurassic Cladocera (Crustacea, Branchiopoda) with a description of an extinct Mesozoic order</mods:title>
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<mods:namePart id="3D23048B610916B28216D4A7D4B35B43">Kotov, Alexey A.</mods:namePart>
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<mods:title id="0EA171A5FC5D7F35E82919EA91F8CA55">Journal of Natural History</mods:title>
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<mods:date id="4E65CE141554A7A8878BBA6FE460ED47">2007</mods:date>
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<taxonomicName id="4C1F4D013167FF99FE13FDF1B02E8B2A" authority="Kotov, 2007" authorityName="Kotov" authorityYear="2007" box="[484,812,544,568]" class="Branchiopoda" family="Leptodorosididae" genus="Leptodorosida" higherTaxonomySource="GBIF" kingdom="Animalia" order="Cryptopoda" pageId="5" pageNumber="17" phylum="Arthropoda" rank="species" species="zherikhini" status="sp. nov.">
<emphasis id="B96BEA903167FF99FE13FDF1B02E8B2A" bold="true" box="[484,812,544,568]" italics="true" pageId="5" pageNumber="17">Leptodorosida zherikhini</emphasis>
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<paragraph id="8BA036823167FF99FDB9FD91B0228B4A" blockId="5.[484,914,544,600]" box="[590,800,576,600]" pageId="5" pageNumber="17">
(
<figureCitation id="13242A073167FF99FDA1FD91B1C08B4A" box="[598,706,576,600]" captionStart="Figure 1" captionStartId="6.[125,185,1585,1604]" captionTargetBox="[250,1048,125,1549]" captionTargetId="figure-1@6.[250,1049,125,1549]" captionTargetPageId="6" captionText="Figure 1. SEM (AE, G, H) and optical (F) micrographs of Leptodorosida zherikhini gen. nov., sp. nov., Ust- Baley, Asian Russia. (A) Holotype, PIN 1873/106; (B) paratype, general view, PIN 1873/102; (C) antenna II, PIN 1873/101; (D, E) antenna II, PIN 1873/115; (F) antenna II, PIN 1873/123; (G) head and thoracic limbs, PIN 1873/107; (H) thoracic limbs, PIN 1873/116. Scale bars: 1 mm (A, B); 0.1 mm (CH)." figureDoi="http://doi.org/10.5281/zenodo.4669492" httpUri="https://zenodo.org/record/4669492/files/figure.png" pageId="5" pageNumber="17">Figures 1</figureCitation>
,
<figureCitation id="13242A073167FF99FD25FD91B1E28B4A" box="[722,736,576,600]" captionStart="Figure 2" captionStartId="7.[138,198,1531,1550]" captionTargetBox="[140,1186,197,1493]" captionTargetId="figure-1@7.[138,1188,194,1495]" captionTargetPageId="7" captionText="Figure 2. Mesozoic Cryptopoda ord. nov. (A) Leptodorosida zherikhini gen. nov., sp. nov. from Ust-Baley, reconstruction based on several impressions; (B, C) antenna II, PIN 1873/115 and 1873/121; (D) Leposida ponomarenkoi gen. nov., sp. nov. from Chalunikha, general view of holotype, PIN 4042/60, see also Figure 3A; (E) reconstruction based on several impressions; (F) postabdomen, PIN 4042/65; (GI) antenna II, PIN 4042/60 (holotype), 4042/61, and 4042/62; (J, K) Leposida ponomarenkoi gen. nov., sp. nov. from Unda, antenna II, PIN 3015/2415 and 3015/2421. Scale bars: 1 mm." figureDoi="http://doi.org/10.5281/zenodo.4669496" httpUri="https://zenodo.org/record/4669496/files/figure.png" pageId="5" pageNumber="17">2</figureCitation>
AC)
</paragraph>
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<emphasis id="B96BEA903167FF99FF7DFD41B3F98BBA" box="[138,251,656,680]" italics="true" pageId="5" pageNumber="17">Etymology</emphasis>
</paragraph>
<paragraph id="8BA036823167FF99FF7DFD11B2318A65" blockId="5.[138,1185,704,887]" pageId="5" pageNumber="17">
This species is dedicated to the outstanding palaeontologist, Professor V. V. Zherikhin, who published images of Ust-Baley cladocerans as crustaceans of unclear taxonomic status (Zherikhin 1985, Plate 7), and participated greatly in the reconstruction of Jurassic palaeocenoses (Zherikhin 1985;
<bibRefCitation id="EF8E4B733167FF99FDDFFCCEB0AA8A25" author="Zherikhin VV &amp; Kalugina NS" box="[552,936,799,823]" pageId="5" pageNumber="17" pagination="140 - 183" refId="ref11184" refString="Zherikhin VV, Kalugina NS. 1985. Landscapes and biocenoses. In: Rasnitsyn AP, editor. Jurassic non-marine biocoenoses of South Siberia and neighbour territories. Moscow: Nauka Press. p 140 - 183. (Rus)." type="book chapter" year="1985">Zherikhin and Kalugina 1985</bibRefCitation>
;
<bibRefCitation id="EF8E4B733167FF99FC37FCCEB24B8A45" author="Sinitshenkova ND &amp; Zherikhin VV" pageId="5" pageNumber="17" pagination="710 - 715" refId="ref10864" refString="Sinitshenkova ND, Zherikhin VV. 1996. Mesozoic lacustrine biota: extinction and persistence of communities. Paleontologicheskii Zhurnal 30: 710 - 715." type="journal article" year="1996">Sinitshenkova and Zherikhin 1996</bibRefCitation>
). His untimely death in
<date id="FFA110423167FF99FD77FCEEB0438A45" box="[640,833,831,855]" pageId="5" pageNumber="17" value="2001-12">December 2001</date>
was a great loss to Russian palaeontology.
</paragraph>
<paragraph id="8BA036823167FF99FF7DFC01B2148AF5" blockId="5.[138,278,975,999]" box="[138,278,975,999]" pageId="5" pageNumber="17">
<emphasis id="B96BEA903167FF99FF7DFC01B2148AF5" box="[138,278,975,999]" italics="true" pageId="5" pageNumber="17">Type locality</emphasis>
</paragraph>
<paragraph id="8BA036823167FF99FF7DFC2EB20F8D05" blockId="5.[138,269,1023,1047]" box="[138,269,1023,1047]" pageId="5" pageNumber="17">Ust-Baley.</paragraph>
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<emphasis id="B96BEA903167FF99FF7DFB9EB23F8D75" box="[138,317,1103,1127]" italics="true" pageId="5" pageNumber="17">Material studied</emphasis>
</paragraph>
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: complete body in lateral position, with distinct head, valves and
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,
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/ 106 (
<figureCitation id="13242A073167FF99FF31FB4EB23C8DA5" box="[198,318,1183,1207]" captionStart="Figure 1" captionStartId="6.[125,185,1585,1604]" captionTargetBox="[250,1048,125,1549]" captionTargetId="figure-1@6.[250,1049,125,1549]" captionTargetPageId="6" captionText="Figure 1. SEM (AE, G, H) and optical (F) micrographs of Leptodorosida zherikhini gen. nov., sp. nov., Ust- Baley, Asian Russia. (A) Holotype, PIN 1873/106; (B) paratype, general view, PIN 1873/102; (C) antenna II, PIN 1873/101; (D, E) antenna II, PIN 1873/115; (F) antenna II, PIN 1873/123; (G) head and thoracic limbs, PIN 1873/107; (H) thoracic limbs, PIN 1873/116. Scale bars: 1 mm (A, B); 0.1 mm (CH)." figureDoi="http://doi.org/10.5281/zenodo.4669492" httpUri="https://zenodo.org/record/4669492/files/figure.png" pageId="5" pageNumber="17">Figure 1A</figureCitation>
)
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.
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<typeStatus id="54A488203167FF99FEA4FB4EB2C58DA5" box="[339,455,1183,1207]" pageId="5" pageNumber="17" type="paratype">Paratypes</typeStatus>
:
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,
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/27; complete body with
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(0)-(7)-(?)-(?)/(0)- (6)-(4?)-(?),
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/31; complete impression with
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(0)-(?)-(?)-(?)/(0)-(8)-(4)-(?),
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/32; unclear impression with
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(0)-(7)-(4)-(?)/(0)-(8)-(?)-(?),
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/50;
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(0)-(.6)-(4)-(8)/(?)-(6)-(5)-(5),
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/57;
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(0)-(7)-(?)-(?)/(0)-(
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7)-(?)-(?),
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/65;
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(0)-?/(0)-(.5)-(4)-(?),
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/67;
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(0)-(.7)-(5)-(6)/(0)-(7)-(4)-(5),
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/69;
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,
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/70;
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<collectionCode id="ED0EAE473167FF99FDF8FAEFB1348C44" box="[527,566,1342,1366]" pageId="5" pageNumber="17">AII</collectionCode>
(0)-(8)-(4)-(7)/(0)-(7)-(?)-(?),
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/76;
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(0)- (7)-(5)-(6)/(0)-(7)-(?)-(?),
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/78; complete body with
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(0)-(.5)-(5)-(?)/(0)-(8)- (?)-(?),
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/79;
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(0)-(6)-(5)-(?)/(0)-(7)-(4)-(.3),
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/80; complete body with distinct head, mandibles and unclear
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/81; complete body with distinct head, mandibles and unclear
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/82;
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(0)-(.5)-(4)-(6)/(0)-(.6)-(4)-(?),
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/83; unclear body contour with mandibles,
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(0)-(?)-(?)-(?)/(0)-(.6)-(?)-(?),
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/85; head, unclear valves,
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(0)-(6)-(.5)-(?)/(0)-(.4)-(4)-(.3),
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/86;
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(0)-(7)-(6)-(.6)/(0)-(6)-(4)-(.3),
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/87;
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(0)-(7)-(6)-(.8)/(0)-(8)-(4)-(5),
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/88; complete body with distinct head and valves,
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/089; complete body with unclear head and valves,
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/90; complete body with distinct head, mandibles,
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6)-(?)-(?),
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/91; complete body, 1873/94; complete body,
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/95;
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,
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/96; complete body,
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(0)-(.5)-(5)-(.4)/(0)-(?)-(4)- (?),
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(0)-(
<emphasis id="B96BEA90316AFF94FEE2FF78B22989D3" bold="true" box="[277,299,169,193]" pageId="8" pageNumber="20">&gt;</emphasis>
7)-(
<emphasis id="B96BEA90316AFF94FEAEFF78B26D89D3" bold="true" box="[345,367,169,193]" pageId="8" pageNumber="20">&gt;</emphasis>
6)-(?)/(0)-(6)-(?)-(?),
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/101; complete body,
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/102; complete body with distinct head and traces of limbs,
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/107;
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,
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/110;
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,
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/113;
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(0)-(
<emphasis id="B96BEA90316AFF94FE08FF38B1178813" bold="true" box="[511,533,233,257]" pageId="8" pageNumber="20">&gt;</emphasis>
8)-(
<emphasis id="B96BEA90316AFF94FDB5FF38B15A8813" bold="true" box="[578,600,233,257]" pageId="8" pageNumber="20">&gt;</emphasis>
4)-(.7)/(0)-(7)-(4)-(
<emphasis id="B96BEA90316AFF94FCBAFF38B0618813" bold="true" box="[845,867,233,257]" pageId="8" pageNumber="20">&gt;</emphasis>
4),
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/115; AII, mandibles and limbs,
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/116;
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,
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/117;
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(0)-(
<emphasis id="B96BEA90316AFF94FC5DFEDBB0C28830" bold="true" box="[938,960,266,290]" pageId="8" pageNumber="20">&gt;</emphasis>
7)-(4)-(7)/(0)-(8)- (4)-(4),
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/123.
</paragraph>
<caption id="DF60660A3164FF9AFF8AF9E0B0B38F81" ID-DOI="http://doi.org/10.5281/zenodo.4669492" ID-Zenodo-Dep="4669492" httpUri="https://zenodo.org/record/4669492/files/figure.png" pageId="6" pageNumber="18" startId="6.[125,185,1585,1604]" targetBox="[250,1048,125,1549]" targetPageId="6">
<paragraph id="8BA036823164FF9AFF8AF9E0B0B38F81" blockId="6.[125,1173,1585,1683]" pageId="6" pageNumber="18">
Figure 1. SEM (AE, G, H) and optical (F) micrographs of
<taxonomicName id="4C1F4D013164FF9AFD31F9E0B09C8F56" authority="Kotov, 2007" authorityName="Kotov" authorityYear="2007" box="[710,926,1585,1604]" class="Branchiopoda" family="Leptodorosididae" genus="Leptodorosida" higherTaxonomySource="GBIF" kingdom="Animalia" order="Cryptopoda" pageId="6" pageNumber="18" phylum="Arthropoda" rank="species" species="zherikhini" status="gen. nov., sp. nov.">
<emphasis id="B96BEA903164FF9AFD31F9E0B09C8F56" box="[710,926,1585,1604]" italics="true" pageId="6" pageNumber="18">Leptodorosida zherikhini</emphasis>
</taxonomicName>
<taxonomicNameLabel id="A25857EB3164FF9AFC51F9E0B7588F56" box="[934,1114,1585,1604]" pageId="6" pageNumber="18" rank="species">gen. nov., sp. nov.</taxonomicNameLabel>
, Ust- Baley, Asian Russia. (A) Holotype, PIN 1873/106; (B) paratype, general view, PIN 1873/102; (C) antenna II, PIN 1873/101; (D, E) antenna II, PIN 1873/115; (F) antenna II, PIN 1873/123; (G) head and thoracic limbs, PIN 1873/107; (H) thoracic limbs, PIN 1873/116. Scale bars: 1 mm (A, B); 0.1 mm (CH).
</paragraph>
</caption>
<caption id="DF60660A3165FF9BFF7DFA2AB1378F81" ID-DOI="http://doi.org/10.5281/zenodo.4669496" ID-Zenodo-Dep="4669496" httpUri="https://zenodo.org/record/4669496/files/figure.png" pageId="7" pageNumber="19" startId="7.[138,198,1531,1550]" targetBox="[140,1186,197,1493]" targetPageId="7">
<paragraph id="8BA036823165FF9BFF7DFA2AB1378F81" blockId="7.[138,1186,1531,1683]" pageId="7" pageNumber="19">
Figure 2. Mesozoic
<taxonomicName id="4C1F4D013165FF9BFEA6FA2AB2C28F1C" authority="Kotov, 2007" authorityName="Kotov" authorityYear="2007" box="[337,448,1531,1550]" class="Branchiopoda" higherTaxonomySource="GBIF" kingdom="Animalia" order="Cryptopoda" pageId="7" pageNumber="19" phylum="Arthropoda" rank="order" status="ord. nov.">Cryptopoda</taxonomicName>
<taxonomicNameLabel id="A25857EB3165FF9BFE3CFA2AB1268F1C" box="[459,548,1531,1550]" pageId="7" pageNumber="19" rank="order">ord. nov.</taxonomicNameLabel>
(A)
<taxonomicName id="4C1F4D013165FF9BFDAEFA2AB0318F1C" authority="Kotov, 2007" authorityName="Kotov" authorityYear="2007" box="[601,819,1531,1550]" class="Branchiopoda" family="Leptodorosididae" genus="Leptodorosida" higherTaxonomySource="GBIF" kingdom="Animalia" order="Cryptopoda" pageId="7" pageNumber="19" phylum="Arthropoda" rank="species" species="zherikhini" status="gen. nov., sp. nov.">
<emphasis id="B96BEA903165FF9BFDAEFA2AB0318F1C" box="[601,819,1531,1550]" italics="true" pageId="7" pageNumber="19">Leptodorosida zherikhini</emphasis>
</taxonomicName>
<taxonomicNameLabel id="A25857EB3165FF9BFCC9FA2AB0FA8F1C" box="[830,1016,1531,1550]" pageId="7" pageNumber="19" rank="species">gen. nov., sp. nov.</taxonomicNameLabel>
from Ust-Baley, reconstruction based on several impressions; (B, C) antenna II, PIN 1873/115 and 1873/121; (D)
<taxonomicName id="4C1F4D013165FF9BFBA2F9C4B2018F51" authority="Kotov, 2007" authorityName="Kotov" authorityYear="2007" class="Branchiopoda" family="Leptodorosididae" genus="Leposida" higherTaxonomySource="GBIF" kingdom="Animalia" order="Cryptopoda" pageId="7" pageNumber="19" phylum="Arthropoda" rank="species" species="ponomarenkoi" status="gen. nov., sp. nov.">
<emphasis id="B96BEA903165FF9BFBA2F9C4B2018F51" italics="true" pageId="7" pageNumber="19">Leposida ponomarenkoi</emphasis>
</taxonomicName>
<taxonomicNameLabel id="A25857EB3165FF9BFEFEF9E1B2B18F51" box="[265,435,1584,1603]" pageId="7" pageNumber="19" rank="species">gen. nov., sp. nov.</taxonomicNameLabel>
from Chalunikha, general view of holotype, PIN 4042/60, see also Figure 3A; (E) reconstruction based on several impressions; (F) postabdomen, PIN 4042/65; (GI) antenna II, PIN 4042/60 (holotype), 4042/61, and 4042/62; (J, K)
<taxonomicName id="4C1F4D013165FF9BFDE6F9B4B1DF8F6A" authority="Kotov, 2007" authorityName="Kotov" authorityYear="2007" box="[529,733,1637,1656]" class="Branchiopoda" family="Leptodorosididae" genus="Leposida" higherTaxonomySource="GBIF" kingdom="Animalia" order="Cryptopoda" pageId="7" pageNumber="19" phylum="Arthropoda" rank="species" species="ponomarenkoi" status="gen. nov., sp. nov.">
<emphasis id="B96BEA903165FF9BFDE6F9B4B1DF8F6A" box="[529,733,1637,1656]" italics="true" pageId="7" pageNumber="19">Leposida ponomarenkoi</emphasis>
</taxonomicName>
<taxonomicNameLabel id="A25857EB3165FF9BFD13F9B4B0938F6A" box="[740,913,1637,1656]" pageId="7" pageNumber="19" rank="species">gen. nov., sp. nov.</taxonomicNameLabel>
from Unda, antenna II, PIN 3015/2415 and 3015/2421. Scale bars: 1 mm.
</paragraph>
</caption>
<paragraph id="8BA03682316AFF94FF8AFE4AB3E488A1" blockId="8.[125,230,411,435]" box="[125,230,411,435]" pageId="8" pageNumber="20">
<emphasis id="B96BEA90316AFF94FF8AFE4AB3E488A1" box="[125,230,411,435]" italics="true" pageId="8" pageNumber="20">Diagnosis</emphasis>
</paragraph>
<paragraph id="8BA03682316AFF94FF8AFE1DB24488F6" blockId="8.[125,326,460,484]" box="[125,326,460,484]" pageId="8" pageNumber="20">As for the genus.</paragraph>
<paragraph id="8BA03682316AFF94FF8AFDCCB3F78B27" blockId="8.[125,245,541,565]" box="[125,245,541,565]" pageId="8" pageNumber="20">
<emphasis id="B96BEA90316AFF94FF8AFDCCB3F78B27" box="[125,245,541,565]" italics="true" pageId="8" pageNumber="20">Description</emphasis>
</paragraph>
<paragraph id="8BA03682316AFF94FF8AFD9FB22F8A5B" blockId="8.[125,1173,589,1426]" pageId="8" pageNumber="20">
Body elongated (height/length
<emphasis id="B96BEA90316AFF94FE00FD9CB10F8B77" bold="true" box="[503,525,589,613]" pageId="8" pageNumber="20">5</emphasis>
about 0.30.4), subovoid (
<figureCitation id="13242A07316AFF94FC95FD9FB70E8B74" box="[866,1036,590,614]" captionStart="Figure 1" captionStartId="6.[125,185,1585,1604]" captionTargetBox="[250,1048,125,1549]" captionTargetId="figure-1@6.[250,1049,125,1549]" captionTargetPageId="6" captionText="Figure 1. SEM (AE, G, H) and optical (F) micrographs of Leptodorosida zherikhini gen. nov., sp. nov., Ust- Baley, Asian Russia. (A) Holotype, PIN 1873/106; (B) paratype, general view, PIN 1873/102; (C) antenna II, PIN 1873/101; (D, E) antenna II, PIN 1873/115; (F) antenna II, PIN 1873/123; (G) head and thoracic limbs, PIN 1873/107; (H) thoracic limbs, PIN 1873/116. Scale bars: 1 mm (A, B); 0.1 mm (CH)." figureDoi="http://doi.org/10.5281/zenodo.4669492" httpUri="https://zenodo.org/record/4669492/files/figure.png" pageId="8" pageNumber="20">Figures 1A, B</figureCitation>
,
<figureCitation id="13242A07316AFF94FBD7FD9FB7448B74" box="[1056,1094,590,614]" captionStart="Figure 2" captionStartId="7.[138,198,1531,1550]" captionTargetBox="[140,1186,197,1493]" captionTargetId="figure-1@7.[138,1188,194,1495]" captionTargetPageId="7" captionText="Figure 2. Mesozoic Cryptopoda ord. nov. (A) Leptodorosida zherikhini gen. nov., sp. nov. from Ust-Baley, reconstruction based on several impressions; (B, C) antenna II, PIN 1873/115 and 1873/121; (D) Leposida ponomarenkoi gen. nov., sp. nov. from Chalunikha, general view of holotype, PIN 4042/60, see also Figure 3A; (E) reconstruction based on several impressions; (F) postabdomen, PIN 4042/65; (GI) antenna II, PIN 4042/60 (holotype), 4042/61, and 4042/62; (J, K) Leposida ponomarenkoi gen. nov., sp. nov. from Unda, antenna II, PIN 3015/2415 and 3015/2421. Scale bars: 1 mm." figureDoi="http://doi.org/10.5281/zenodo.4669496" httpUri="https://zenodo.org/record/4669496/files/figure.png" pageId="8" pageNumber="20">2A</figureCitation>
), with slightly convex dorsal margin and distinct postero-dorsal angle, postero-ventral angle absent. Head massive, 0.30.4 body length, strongly chitinized, forming a head shield, with its distalmost extremity protruding anteriorly. Posterior portion of head slightly inflated (most probably, powerful mandibular muscles were attached here), posterior head margin as a shallow incision. A distinct fold (fornix) on lateral surface of head (
<figureCitation id="13242A07316AFF94FC4BFD21B7318A1A" box="[956,1075,752,776]" captionStart="Figure 2" captionStartId="7.[138,198,1531,1550]" captionTargetBox="[140,1186,197,1493]" captionTargetId="figure-1@7.[138,1188,194,1495]" captionTargetPageId="7" captionText="Figure 2. Mesozoic Cryptopoda ord. nov. (A) Leptodorosida zherikhini gen. nov., sp. nov. from Ust-Baley, reconstruction based on several impressions; (B, C) antenna II, PIN 1873/115 and 1873/121; (D) Leposida ponomarenkoi gen. nov., sp. nov. from Chalunikha, general view of holotype, PIN 4042/60, see also Figure 3A; (E) reconstruction based on several impressions; (F) postabdomen, PIN 4042/65; (GI) antenna II, PIN 4042/60 (holotype), 4042/61, and 4042/62; (J, K) Leposida ponomarenkoi gen. nov., sp. nov. from Unda, antenna II, PIN 3015/2415 and 3015/2421. Scale bars: 1 mm." figureDoi="http://doi.org/10.5281/zenodo.4669496" httpUri="https://zenodo.org/record/4669496/files/figure.png" pageId="8" pageNumber="20">Figure 2A</figureCitation>
, arrow), covering coxal portion of AII. Valve firm, probably thick-walled, oval-elongated, without marginal setae.
</paragraph>
<paragraph id="8BA03682316AFF94FF6FFC83B3C88C1D" blockId="8.[125,1173,589,1426]" pageId="8" pageNumber="20">
<materialsCitation id="3B773CDF316AFF94FF6FFC83B3C48C1D" collectionCode="AII" collectorName="Antenna I &amp; Basal &amp; Both &amp; Exopod &amp; First &amp; Endopod &amp; Antennal &amp; No" pageId="8" pageNumber="20" specimenCount="2">
<collectorName id="26EA5354316AFF94FF6FFC83B20F8A78" box="[152,269,850,874]" pageId="8" pageNumber="20">Antenna I</collectorName>
not found.
<collectionCode id="ED0EAE47316AFF94FE6EFC83B2C28A78" box="[409,448,850,874]" pageId="8" pageNumber="20">AII</collectionCode>
strong and long, length from base to tip of exopod more than half of body length.
<collectorName id="26EA5354316AFF94FE9CFCA3B2AA8A98" box="[363,424,882,906]" pageId="8" pageNumber="20">Basal</collectorName>
segment strong, thick.
<collectorName id="26EA5354316AFF94FD4BFCA3B1F68A98" box="[700,756,882,906]" pageId="8" pageNumber="20">Both</collectorName>
antennal branches long, thin, foursegmented (
<figureCitation id="13242A07316AFF94FEFEFC43B2728AB8" box="[265,368,914,938]" captionStart="Figure 1" captionStartId="6.[125,185,1585,1604]" captionTargetBox="[250,1048,125,1549]" captionTargetId="figure-1@6.[250,1049,125,1549]" captionTargetPageId="6" captionText="Figure 1. SEM (AE, G, H) and optical (F) micrographs of Leptodorosida zherikhini gen. nov., sp. nov., Ust- Baley, Asian Russia. (A) Holotype, PIN 1873/106; (B) paratype, general view, PIN 1873/102; (C) antenna II, PIN 1873/101; (D, E) antenna II, PIN 1873/115; (F) antenna II, PIN 1873/123; (G) head and thoracic limbs, PIN 1873/107; (H) thoracic limbs, PIN 1873/116. Scale bars: 1 mm (A, B); 0.1 mm (CH)." figureDoi="http://doi.org/10.5281/zenodo.4669492" httpUri="https://zenodo.org/record/4669492/files/figure.png" pageId="8" pageNumber="20">Figures 1</figureCitation>
CF, 2B, C).
<collectorName id="26EA5354316AFF94FDE0FC43B1738AB8" box="[535,625,914,938]" pageId="8" pageNumber="20">Exopod</collectorName>
longer than endopod.
<collectorName id="26EA5354316AFF94FC8CFC43B0B38AB8" box="[891,945,914,938]" pageId="8" pageNumber="20">First</collectorName>
segment of exopod of moderate size, lacking setae, second to fourth segments elongated, each with a series of setae, length of second segment less than that of third plus fourth segments.
<collectorName id="26EA5354316AFF94FC18FC02B7598AF9" box="[1007,1115,979,1003]" pageId="8" pageNumber="20">Endopod</collectorName>
with long first segment, lacking setae, second segment large, with a series of setae, third and fourth segments small, each with a series of setae.
<collectorName id="26EA5354316AFF94FD33FBC5B02C8D3E" box="[708,814,1044,1068]" pageId="8" pageNumber="20">Antennal</collectorName>
formula (0)-(58)-(4.6)-(6.8)/(0)-(68)-(45)-(45).
<collectorName id="26EA5354316AFF94FE3FFBE5B2EF8D5E" box="[456,493,1076,1100]" pageId="8" pageNumber="20">No</collectorName>
spines were found on any segments and on the basal segment of
<collectionCode id="ED0EAE47316AFF94FEFDFB84B2378D7F" box="[266,309,1109,1133]" pageId="8" pageNumber="20">AII</collectionCode>
. Mandibles asymmetrical, large, strongly chitinized, with molar surfaces of primitive, triturating
<typeStatus id="54A48820316AFF94FE51FBA4B2D88D9F" box="[422,474,1141,1165]" pageId="8" pageNumber="20">type</typeStatus>
, lacking any large projections. Thoracic limbs were not distinct in the majority of specimens, probably hidden in most under strong valves, but two impressions of
<taxonomicName id="4C1F4D01316AFF94FE73FB67B1188DDC" authorityName="Kotov" authorityYear="2007" box="[388,538,1206,1230]" class="Branchiopoda" family="Leptodorosididae" genus="Leptodorosida" higherTaxonomySource="GBIF" kingdom="Animalia" order="Cryptopoda" pageId="8" pageNumber="20" phylum="Arthropoda" rank="genus">
<emphasis id="B96BEA90316AFF94FE73FB67B1188DDC" box="[388,538,1206,1230]" italics="true" pageId="8" pageNumber="20">Leptodorosida</emphasis>
</taxonomicName>
were associated with uniform limbs of filtering
<typeStatus id="54A48820316AFF94FF8AFB06B3AC8DFD" box="[125,174,1239,1263]" pageId="8" pageNumber="20">type</typeStatus>
(
<figureCitation id="13242A07316AFF94FF35FB06B2648DFD" box="[194,358,1239,1263]" captionStart="Figure 1" captionStartId="6.[125,185,1585,1604]" captionTargetBox="[250,1048,125,1549]" captionTargetId="figure-1@6.[250,1049,125,1549]" captionTargetPageId="6" captionText="Figure 1. SEM (AE, G, H) and optical (F) micrographs of Leptodorosida zherikhini gen. nov., sp. nov., Ust- Baley, Asian Russia. (A) Holotype, PIN 1873/106; (B) paratype, general view, PIN 1873/102; (C) antenna II, PIN 1873/101; (D, E) antenna II, PIN 1873/115; (F) antenna II, PIN 1873/123; (G) head and thoracic limbs, PIN 1873/107; (H) thoracic limbs, PIN 1873/116. Scale bars: 1 mm (A, B); 0.1 mm (CH)." figureDoi="http://doi.org/10.5281/zenodo.4669492" httpUri="https://zenodo.org/record/4669492/files/figure.png" pageId="8" pageNumber="20">Figure 1G, H</figureCitation>
), although their number and details remain unclear. Eggs were not found
</materialsCitation>
.
</paragraph>
<paragraph id="8BA03682316AFF94FF6FFAC9B7978C22" blockId="8.[125,1173,589,1426]" box="[152,1173,1304,1328]" pageId="8" pageNumber="20">
Size
<quantity id="4CE79B67316AFF94FF27FAC9B25C8C22" box="[208,350,1304,1328]" metricMagnitude="-3" metricUnit="m" metricValue="2.0" metricValueMax="2.2" metricValueMin="1.8" pageId="8" pageNumber="20" unit="mm" value="2.0" valueMax="2.2" valueMin="1.8">1.82.2 mm</quantity>
. Apparently, specimens had strong cuticle and were weakly deformed.
</paragraph>
<paragraph id="8BA03682316AFF94FF6FFAE8B0A68C80" blockId="8.[125,1173,589,1426]" pageId="8" pageNumber="20">
Specimens with postabdominal claws were absent. Thin paired claws
<quantity id="4CE79B67316AFF94FC3FFAE8B7508C43" box="[968,1106,1337,1361]" metricMagnitude="-4" metricUnit="m" metricValue="6.5" metricValueMax="8.0" metricValueMin="5.0" pageId="8" pageNumber="20" unit="mm" value="0.65" valueMax="0.8" valueMin="0.5">0.50.8 mm</quantity>
long, lacking denticles, were found on many fragments without clear association with body parts of other specimens, but they are too large to belong to
<taxonomicName id="4C1F4D01316AFF94FCF1FAABB09E8C80" authorityName="Kotov" authorityYear="2007" box="[774,924,1402,1426]" class="Branchiopoda" family="Leptodorosididae" genus="Leptodorosida" higherTaxonomySource="GBIF" kingdom="Animalia" order="Cryptopoda" pageId="8" pageNumber="20" phylum="Arthropoda" rank="genus">
<emphasis id="B96BEA90316AFF94FCF1FAABB09E8C80" box="[774,924,1402,1426]" italics="true" pageId="8" pageNumber="20">Leptodorosida</emphasis>
</taxonomicName>
.
</paragraph>
<paragraph id="8BA03682316AFF94FF8AFA3BB3EC8F10" blockId="8.[125,238,1514,1538]" box="[125,238,1514,1538]" pageId="8" pageNumber="20">
<emphasis id="B96BEA90316AFF94FF8AFA3BB3EC8F10" box="[125,238,1514,1538]" italics="true" pageId="8" pageNumber="20">Comments</emphasis>
</paragraph>
<paragraph id="8BA03682316AFF94FF8AF9CAB3EE8F86" blockId="8.[125,1172,1563,1684]" pageId="8" pageNumber="20">
In the Jurassic lake Ust-Baley,
<taxonomicName id="4C1F4D01316AFF94FE0BF9CDB18C8F21" authority="Kotov, 2007" authorityName="Kotov" authorityYear="2007" box="[508,654,1563,1587]" class="Branchiopoda" family="Leptodorosididae" genus="Leptodorosida" higherTaxonomySource="GBIF" kingdom="Animalia" order="Cryptopoda" pageId="8" pageNumber="20" phylum="Arthropoda" rank="species" species="zherikhini" status="sp. nov.">
<emphasis id="B96BEA90316AFF94FE0BF9CDB18C8F21" box="[508,654,1563,1587]" italics="true" pageId="8" pageNumber="20">L. zherikhini</emphasis>
</taxonomicName>
<taxonomicNameLabel id="A25857EB316AFF94FD6EF9CAB1FA8F21" box="[665,760,1563,1587]" pageId="8" pageNumber="20" rank="species">sp. nov.</taxonomicNameLabel>
co-occurred with
<emphasis id="B96BEA90316AFF94FC20F9CAB3D88F46" italics="true" pageId="8" pageNumber="20">Smirnoυidaphnia smirnoυi</emphasis>
sp. nov. (see below). But on rock fragments the former can be easily differentiated from the latter in having a strongly chitinized head and AII with numerous setae on the endopod.
</paragraph>
</subSubSection>
</treatment>
</document>