114 lines
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114 lines
12 KiB
XML
<document id="CCA05133139E26483FFE8130F71DE23A" ID-DOI="10.37520/fi.2020.010" ID-ISSN="2533-4069" ID-Zenodo-Dep="5382960" IM.metadata_approvedBy="felipe" IM.tables_requiresApprovalFor="existingObjects,plazi" IM.taxonomicNames_approvedBy="felipe" checkinTime="1630295763276" checkinUser="diego" docAuthor="Rekovets, Leonid, Stefen, Clara & Demeshkant, Vitalii" docDate="2020" docId="521C87F1E04BFFB922E363777FE2FB40" docLanguage="en" docName="09_Rekovets.pdf" docOrigin="Fossil Imprint 76 (1)" docSource="http://dx.doi.org/10.37520/fi.2020.010" docStyle="DocumentStyle:0EC54BF35E227CA4627F894F6BA30634.4:FossilImprint.2016-.journal_article" docStyleId="0EC54BF35E227CA4627F894F6BA30634" docStyleName="FossilImprint.2016-.journal_article" docStyleVersion="4" docTitle="Euroxenomys minutus" docType="treatment" docVersion="3" lastPageNumber="168" masterDocId="AE25FF89E049FFBA2173642E7D20FFA2" masterDocTitle="Beavers (Castoridae, Rodentia) From The Late Miocene (Mn 9) Locality Grytsiv In Ukraine" masterLastPageNumber="173" masterPageNumber="165" pageNumber="167" updateTime="1699218748030" updateUser="plazi" zenodo-license-document="CC-BY-NC-ND-3.0">
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<mods:title id="7754EDFE474B4EE6451FF2A12F419C88">Beavers (Castoridae, Rodentia) From The Late Miocene (Mn 9) Locality Grytsiv In Ukraine</mods:title>
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<mods:namePart id="51B14DB56A3431BB1D8C468DD68703DC">Rekovets, Leonid</mods:namePart>
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<mods:namePart id="D8D96BF1C19EE3BC9DF77AA12DC3CCC1">Stefen, Clara</mods:namePart>
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<mods:namePart id="DF21B16C46026330A5A671B76E49F69F">Demeshkant, Vitalii</mods:namePart>
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<mods:title id="4A06B423EE4A89424F54329B32696C8A">Fossil Imprint</mods:title>
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<mods:date id="1750711E9741547F3894516F3C716F50">2020</mods:date>
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<subSubSection id="92AF656CE04BFFB822E3637778A4F8D3" box="[912,1412,1881,1906]" pageId="2" pageNumber="167" type="nomenclature">
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<paragraph id="DA0A36E7E04BFFB822E3637778A4F8D3" blockId="2.[912,1412,1881,1906]" box="[912,1412,1881,1906]" pageId="2" pageNumber="167">
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<heading id="8142818BE04BFFB822E3637778A4F8D3" box="[912,1412,1881,1906]" centered="true" fontSize="8" level="2" pageId="2" pageNumber="167" reason="2">
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<emphasis id="E8C1EAF5E04BFFB822E363777E8CF8D3" bold="true" box="[912,940,1881,1905]" pageId="2" pageNumber="167">cf.</emphasis>
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<taxonomicName id="1DB54D64E04BFFB822C1637478A4F8D3" authority="(VON MEYER, 1838)" baseAuthorityName="VON MEYER" baseAuthorityYear="1838" box="[946,1412,1881,1906]" class="Mammalia" family="Castoridae" genus="Euroxenomys" higherTaxonomySource="GBIF" kingdom="Animalia" order="Rodentia" pageId="2" pageNumber="167" phylum="Chordata" rank="species" species="minutus">
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<emphasis id="E8C1EAF5E04BFFB822C16374785DF8D3" bold="true" box="[946,1405,1881,1906]" pageId="2" pageNumber="167">
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<emphasis id="E8C1EAF5E04BFFB822C16374798CF8D3" bold="true" box="[946,1196,1881,1905]" italics="true" pageId="2" pageNumber="167">Euroxenomys minutus</emphasis>
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(VON
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<bibRefCitation id="BE244B16E04BFFB825986374785DF8D3" author="Meyer, H. von" box="[1259,1405,1881,1906]" pageId="2" pageNumber="167" pagination="413 - 418" refId="ref6607" refString="Meyer, H. von (1838): Mittheilungen an Professor Bronn gerichtet. - Neues Jahrbuch fur Mineralogie, Geognosie, Geologie und Petrefaktenkunde, 1838: 413 - 418." type="journal article" year="1838">MEYER, 1838</bibRefCitation>
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</emphasis>
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)
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</taxonomicName>
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</heading>
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</paragraph>
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<subSubSection id="92AF656CE04BFFB9254363547FE2FB40" lastPageId="3" lastPageNumber="168" pageId="2" pageNumber="167" type="description">
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<paragraph id="DA0A36E7E04BFFB82543635479C5F830" blockId="2.[1072,1253,1914,1938]" box="[1072,1253,1914,1938]" pageId="2" pageNumber="167">Pl. 1, Figs 10–11</paragraph>
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<paragraph id="DA0A36E7E04BFFB8223863867820F879" blockId="2.[843,1482,1960,2012]" pageId="2" pageNumber="167">
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2015
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<taxonomicName id="1DB54D64E04BFFB822E5638678E3F81C" authority="minutum" box="[918,1475,1960,1982]" class="Mammalia" family="Castoridae" genus="Trogontherium" higherTaxonomySource="GBIF" kingdom="Animalia" order="Rodentia" pageId="2" pageNumber="167" phylum="Chordata" rank="subSpecies" species="minutum" subGenus="Euroxenomys" subSpecies="minutum">
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<emphasis id="E8C1EAF5E04BFFB822E563867905F81F" box="[918,1061,1960,1981]" italics="true" pageId="2" pageNumber="167">Trogontherium</emphasis>
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(
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<emphasis id="E8C1EAF5E04BFFB8253C638779F1F81C" box="[1103,1233,1961,1982]" italics="true" pageId="2" pageNumber="167">Euroxenomys</emphasis>
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)
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<emphasis id="E8C1EAF5E04BFFB82589638778E3F81C" box="[1274,1475,1961,1982]" italics="true" pageId="2" pageNumber="167">minutum minutum</emphasis>
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</taxonomicName>
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; Apoltsev and Rekovets, p. 521, fig. 1.
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</paragraph>
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<paragraph id="DA0A36E7E04BFFB9220263DA7C30FEAD" blockId="2.[843,1482,2036,2092]" lastBlockId="3.[106,745,151,272]" lastPageId="3" lastPageNumber="168" pageId="2" pageNumber="167">
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C o m m e n t s. Two teeth from Grytsiv belong to a small-sized beaver, and these specimens are tentatively assigned resembling those to
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<taxonomicName id="1DB54D64E04AFFB9209864B67FC8FF0D" baseAuthorityName="VON MEYER" baseAuthorityYear="1838" box="[491,744,152,175]" class="Mammalia" family="Castoridae" genus="Euroxenomys" higherTaxonomySource="GBIF" kingdom="Animalia" order="Rodentia" pageId="3" pageNumber="168" phylum="Chordata" rank="species" species="minutus">
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<emphasis id="E8C1EAF5E04AFFB9209864B67FC8FF0D" box="[491,744,152,175]" italics="true" pageId="3" pageNumber="168">Euroxenomys minutus</emphasis>
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</taxonomicName>
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following
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<bibRefCitation id="BE244B16E04AFFB921A964967F66FF72" author="Hugueney, M. & Duranthon, F." box="[218,582,184,208]" pageId="3" pageNumber="168" pagination="95 - 118" refId="ref6061" refString="Hugueney, M., Duranthon, F. (2012): Les Castoridae (Rodentia) de Sansan. - In: Peigne, S., Sen, S. (eds), Mam- miferes de Sansan. Memoires du Museum national d'Histoire naturelle, Paris, 203: 95 - 118." type="journal article" year="2012">Hugueney and Duranthon (2012)</bibRefCitation>
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. These authors accepted the genus as valid and not as a subgenus within
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<taxonomicName id="1DB54D64E04AFFB9211964D67C29FEB2" box="[106,265,248,272]" class="Mammalia" family="Castoridae" genus="Trogontherium" higherTaxonomySource="GBIF" kingdom="Animalia" order="Rodentia" pageId="3" pageNumber="168" phylum="Chordata" rank="genus">
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<emphasis id="E8C1EAF5E04AFFB9211964D67C29FEB2" box="[106,265,248,272]" italics="true" pageId="3" pageNumber="168">Trogontherium</emphasis>
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</taxonomicName>
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.
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</paragraph>
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<paragraph id="DA0A36E7E04AFFB921E365067DC5FC83" blockId="3.[106,745,295,1250]" pageId="3" pageNumber="168">
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D e s c r i p t i o n. The right P4 (NMNHU-P 22/218; Pl. 1, Fig. 11a, b) is broken at the base. The tooth is small and also appears more fragile than other beaver teeth from Grytsiv. The described specimen is slightly worn, its paraflexus has a tiny lateral opening. The metafossette is wide, appears to be just closed, and fills the distal part of the tooth. The mesoflexus has a wide buccal opening which shows some cement and is curved on the occlusal surface extending to the linguo-buccal side. The hypoflexus is straight, short, oriented diagonally, and ends in about the middle of the tooth width adjacent to the paraflexus. The hypostria extends lingually to the broken end of the tooth crown (Pl. 1, Fig. 11b). The specimen fits well into the size range of upper premolars of small beavers from Sansan assigned to
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<taxonomicName id="1DB54D64E04AFFB9211966C77C77FCA2" baseAuthorityName="VON MEYER" baseAuthorityYear="1838" box="[106,343,745,768]" class="Mammalia" family="Castoridae" genus="Euroxenomys" higherTaxonomySource="GBIF" kingdom="Animalia" order="Rodentia" pageId="3" pageNumber="168" phylum="Chordata" rank="species" species="minutus">
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<emphasis id="E8C1EAF5E04AFFB9211966C77C77FCA2" box="[106,343,745,768]" italics="true" pageId="3" pageNumber="168">Euroxenomys minutus</emphasis>
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</taxonomicName>
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(see
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<bibRefCitation id="BE244B16E04AFFB920E066C77FC8FCA3" author="Hugueney, M. & Duranthon, F." box="[403,744,745,769]" pageId="3" pageNumber="168" pagination="95 - 118" refId="ref6061" refString="Hugueney, M., Duranthon, F. (2012): Les Castoridae (Rodentia) de Sansan. - In: Peigne, S., Sen, S. (eds), Mam- miferes de Sansan. Memoires du Museum national d'Histoire naturelle, Paris, 203: 95 - 118." type="journal article" year="2012">Hugueney and Duranthon 2012</bibRefCitation>
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for details).
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</paragraph>
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<paragraph id="DA0A36E7E04AFFB921E367077FE2FB40" blockId="3.[106,745,295,1250]" pageId="3" pageNumber="168">
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The left М3 (NMNHU-P 22/217; Pl. 1, Fig. 10a, b) is not fully developed tooth germ. The tooth is small and slenderer than the other teeth assigned to
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<taxonomicName id="1DB54D64E04AFFB920A067477F71FC23" box="[467,593,873,897]" class="Mammalia" family="Castoridae" genus="Chalicomys" higherTaxonomySource="GBIF" kingdom="Animalia" order="Rodentia" pageId="3" pageNumber="168" phylum="Chordata" rank="genus">
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<emphasis id="E8C1EAF5E04AFFB920A067477F71FC23" box="[467,593,873,897]" italics="true" pageId="3" pageNumber="168">Chalicomys</emphasis>
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</taxonomicName>
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. The tooth is unworn, without roots. The lingual hypostria is narrow and nearly reaches the crown base. The buccal mesostriia does not extend to the middle of the crown height. The ridges are visible on the occlusal surface. Anteriorly, at the protocone, there is a relatively wide fossette, interpreted herein as pre-parafossette. The narrow paraflexus shows a narrow lateral opening and extends to the hypoflexus on the occlusal surface. The hypoflexus appears as a pointed and wide triangle on the occlusal surface. Distal to the para- and hypoflexus, there is a narrow mesoflexid extending from side to side of the tooth. The metaflexus is open distally.
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</paragraph>
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</subSubSection>
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</treatment>
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