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<mods:title id="BE43969479098C2EBDA0D5C15BCF5BD2">Revision of Mesozoic Myodocopina (Ostracoda) and a new genus and species, Mesoleberis hollandica, from the Upper Cretaceous of Belgium and The Netherlands</mods:title>
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<paragraph id="4E00368C4B62C075FE94FAA9116DFAB9" blockId="20.[264,802,1310,1371]" box="[264,802,1310,1336]" pageId="20" pageNumber="35">
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<taxonomicName id="89BF4D0F4B62C075FE94FAA9115BFAB9" authority="Weitschat 1983" authorityName="Weitschat" authorityYear="1983" box="[264,788,1310,1336]" class="Ostracoda" family="Cylindroleberididae" genus="Triadocypris" higherTaxonomySource="CoL" kingdom="Animalia" order="Myodocopida" pageId="20" pageNumber="35" phylum="Arthropoda" rank="species" species="spitzbergensis">
<emphasis id="7CCBEA9E4B62C075FE94FAA91001FAB9" bold="true" box="[264,590,1310,1336]" italics="true" pageId="20" pageNumber="35">Triadocypris spitzbergensis</emphasis>
<bibRefCitation id="2A2E4B7D4B62C075FDCAFAA9115BFAB9" author="Weitschat" box="[598,788,1310,1336]" pageId="20" pageNumber="54" refString="Weitschat, W. (1983 a) Ostracoden (O. Myodocopida) mit Weichkoerper-Erhaltung aus der Unter- Trias von Spitzbergen. [Myodocopid Ostracodes with preserved appendages from the Lower Triassic of Spitsbergen.] Palaontologische Zeitschrift, 57, 309 - 323." type="journal article" year="1983" yearSuffix="a">Weitschat 1983</bibRefCitation>
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a
</emphasis>
</heading>
</paragraph>
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<figureCitation id="D6842A094B62C075FE94FAF61304FADA" box="[264,331,1345,1371]" captionStart="FIGURE 3" captionStartId="16.[264,368,1593,1617]" captionTargetBox="[319,1281,313,1575]" captionTargetId="figure@16.[319,1281,313,1575]" captionTargetPageId="16" captionText="FIGURE 3. Triadogigantocypris balatonica Monostori 1991: A, left lateral view of carapace, length 12 mm; B, detail of central muscle scars from A. Triadogigantocypris donzei (Neale 1976): C, lateral view of male carapace, length 1.065 mm; D, lateral view of female carapace, length 1.117 mm; E, central adductor muscle scars, left valve. Triadogigantocypris koninckiana (Bosquet 1847): F, G, I, lateral views of 3 right valves; H, lateral view, left valve. Triadogigantocypris ovulata (Bosquet 1847): J, left lateral view of carapace, length 1.4 mm. Triadogigantocypris limburgensis (Van Veen 1936): K, lateral view, right valve. Triadocypris spitzbergensis Weitschat 1983 a: L, lateral view of carapace, length 3.1 mm; M, central adductor muscle scars left valve. Size of specimens given if stated in original description." httpUri="https://zenodo.org/record/172938/files/figure.png" pageId="20" pageNumber="35">Fig. 3</figureCitation>
L, M
</paragraph>
</subSubSection>
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<taxonomicName id="89BF4D0F4B62C075FE94FA25116EFA29" authority="Weitschat 1983a:309" authorityName="Weitschat" authorityPageNumber="309" authorityYear="1983" box="[264,801,1425,1449]" class="Ostracoda" family="Cylindroleberididae" genus="Triadocypris" higherTaxonomySource="CoL" kingdom="Animalia" order="Myodocopida" pageId="20" pageNumber="35" phylum="Arthropoda" rank="species" species="spitzbergensis">
<emphasis id="7CCBEA9E4B62C075FE94FA25107EFA28" box="[264,561,1426,1449]" italics="true" pageId="20" pageNumber="35">Triadocypris spitzbergensis</emphasis>
<treatmentCitation id="CF1E109D4B62C075FDA1FA26116EFA29" author="Weitschat" box="[573,801,1425,1448]" page="309" pageId="20" pageNumber="35" year="1983">
<bibRefCitation id="2A2E4B7D4B62C075FDA1FA2610BBFA29" author="Weitschat" box="[573,756,1425,1448]" pageId="20" pageNumber="54" refString="Weitschat, W. (1983 a) Ostracoden (O. Myodocopida) mit Weichkoerper-Erhaltung aus der Unter- Trias von Spitzbergen. [Myodocopid Ostracodes with preserved appendages from the Lower Triassic of Spitsbergen.] Palaontologische Zeitschrift, 57, 309 - 323." type="journal article" year="1983" yearSuffix="a">Weitschat 1983a</bibRefCitation>
:309
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323, 10 figs.—1983b:127138.—
<treatmentCitation id="CF1E109D4B62C075FB05FA261383FA49" author="Weitschat" page="17" pageId="20" pageNumber="35" year="1994">
<bibRefCitation id="2A2E4B7D4B62C075FB05FA2613E1FA49" author="Weitschat" pageId="20" pageNumber="54" refString="Weitschat, W. &amp; Guhl, W. (1994) Erster Nachweis fossiler Ciliaten. Palaontologische Zeitschrift, 68 (1 / 2), 17 - 31." type="journal article" year="1994">Weitschat &amp; Guhl 1994</bibRefCitation>
:17
</treatmentCitation>
31, figs. 1, 9. —
<treatmentCitation id="CF1E109D4B62C075FD1BFA061121FA49" author="Cohen" box="[647,878,1457,1481]" page="258" pageId="20" pageNumber="35" year="1998">
<bibRefCitation id="2A2E4B7D4B62C075FD1BFA06110DFA49" author="Cohen" box="[647,834,1457,1481]" pageId="20" pageNumber="50" refString="Cohen, A. C., Martin, J. W. &amp; Kornicker, L. (1998) Homology of Holocene ostracode biramous appendages with those of other crustaceans: the protopod, epipod, exopod and endopod. Lethaia, 31, 251 - 265." type="journal article" year="1998">
Cohen
<emphasis id="7CCBEA9E4B62C075FD4EFA051147FA48" box="[722,776,1458,1481]" italics="true" pageId="20" pageNumber="35">et al.</emphasis>
1998
</bibRefCitation>
:258
</treatmentCitation>
.—
<treatmentCitation id="CF1E109D4B62C075FC12FA0616F4FA49" author="Kornicker" box="[910,1211,1457,1480]" page="22" pageId="20" pageNumber="35" year="2000">
<bibRefCitation id="2A2E4B7D4B62C075FC12FA0616D4FA49" author="Kornicker" box="[910,1179,1457,1480]" pageId="20" pageNumber="52" refString="Kornicker, L. S. &amp; Sohn, I. G. (2000) Myodocopid Ostracoda from the Late Permian of Greece and a Basic Classification for Paleozoic and Mesozoic Myodocopida. Smithsonian Contributions to Paleobiology, 91, 33 pp." type="book" year="2000">Kornicker &amp; Sohn 2000</bibRefCitation>
:22
</treatmentCitation>
.
<emphasis id="7CCBEA9E4B62C075FE94FA66133CFA6B" box="[264,371,1489,1514]" italics="true" pageId="20" pageNumber="35">
<typeStatus id="9104882E4B62C075FE94FA66133CFA6B" box="[264,371,1489,1514]" pageId="20" pageNumber="35" type="holotype">Holotype</typeStatus>
</emphasis>
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</paragraph>
<paragraph id="4E00368C4B62C075FED3FA4E13B8F9BA" blockId="20.[264,1323,1425,1595]" pageId="20" pageNumber="35">Geologisch­Paläontologisches Institut und Museum, University of Hamburg (GPIHM), no. 2558.</paragraph>
</subSubSection>
<subSubSection id="06A565074B62C075FE94F9C610DBF8D2" pageId="20" pageNumber="35" type="materials_examined">
<paragraph id="4E00368C4B62C075FE94F9C613D1F90B" blockId="20.[264,1322,1649,1755]" box="[264,414,1649,1674]" pageId="20" pageNumber="35">
<emphasis id="7CCBEA9E4B62C075FE94F9C613D1F90B" box="[264,414,1649,1674]" italics="true" pageId="20" pageNumber="35">
<typeStatus id="9104882E4B62C075FE94F9C61370F90B" box="[264,319,1649,1674]" pageId="20" pageNumber="35">Type</typeStatus>
locality
</emphasis>
</paragraph>
<paragraph id="4E00368C4B62C075FEA4F92E1136F95A" blockId="20.[264,1322,1649,1755]" pageId="20" pageNumber="35">
Sticky Keep Formation, Lower Triassic (
<emphasis id="7CCBEA9E4B62C075FCE2F92E1644F933" box="[894,1035,1689,1714]" italics="true" pageId="20" pageNumber="35">subrobustus</emphasis>
Zone); Flowerdalen,
<collectingCountry id="36A8761C4B62C075FE94F97613DAF95A" box="[264,405,1729,1755]" name="Svalbard and Jan Mayen" pageId="20" pageNumber="35">Spitsbergen</collectingCountry>
, lat. 78°N, long. 17°E (
<bibRefCitation id="2A2E4B7D4B62C075FD3EF9761123F95A" author="Weitschat" box="[674,876,1729,1755]" pageId="20" pageNumber="54" refString="Weitschat, W. (1983 b) On Triadocypris spitzbergensis Weitschat 1983. In Bate, R. H., Neale, J. W., Siveter, D. J., &amp; Sylvester-Bradley, P. C. (Eds.) Stereo-Atlas of Ostracod Shells, 10 (23), The Broadwater Press, Ltd., Hertfordshire, England; pp. 127 - 138." type="journal article" year="1983" yearSuffix="b">Weitschat 1983b</bibRefCitation>
).
</paragraph>
<paragraph id="4E00368C4B62C075FE94F8A61320F8AB" blockId="20.[264,660,1809,1875]" box="[264,367,1809,1834]" pageId="20" pageNumber="35">
<emphasis id="7CCBEA9E4B62C075FE94F8A61320F8AB" box="[264,367,1809,1834]" italics="true" pageId="20" pageNumber="35">Material</emphasis>
</paragraph>
<paragraph id="4E00368C4B62C075FEA4F88E10DBF8D2" blockId="20.[264,660,1809,1875]" box="[312,660,1849,1875]" pageId="20" pageNumber="35">No material examined herein.</paragraph>
</subSubSection>
<subSubSection id="06A565074B63C074FE94FEAB101BFEDF" box="[264,596,284,350]" pageId="21" pageNumber="36" type="distribution">
<paragraph id="4E00368C4B63C074FE94FEAB13D8FEB4" blockId="21.[264,596,284,350]" box="[264,407,284,309]" pageId="21" pageNumber="36">
<emphasis id="7CCBEA9E4B63C074FE94FEAB13D8FEB4" box="[264,407,284,309]" italics="true" pageId="21" pageNumber="36">Distribution</emphasis>
</paragraph>
<paragraph id="4E00368C4B63C074FEA3FEF3101BFEDF" blockId="21.[264,596,284,350]" box="[319,596,324,350]" pageId="21" pageNumber="36">
Triassic of
<collectingCountry id="36A8761C4B63C074FE5EFEF3101FFEDF" box="[450,592,324,350]" name="Svalbard and Jan Mayen" pageId="21" pageNumber="36">Spitsbergen</collectingCountry>
.
</paragraph>
</subSubSection>
<subSubSection id="06A565074B63C074FE94FE2311C0FCE7" pageId="21" pageNumber="36" type="diagnosis">
<paragraph id="4E00368C4B63C074FE94FE2310D5FE2C" blockId="21.[264,1323,404,710]" box="[264,666,404,429]" pageId="21" pageNumber="36">
<emphasis id="7CCBEA9E4B63C074FE94FE2310D5FE2C" box="[264,666,404,429]" italics="true" pageId="21" pageNumber="36">
Diagnosis (from
<bibRefCitation id="2A2E4B7D4B63C074FE52FE2310DEFE2C" author="Weitschat" box="[462,657,404,429]" pageId="21" pageNumber="54" refString="Weitschat, W. (1983 b) On Triadocypris spitzbergensis Weitschat 1983. In Bate, R. H., Neale, J. W., Siveter, D. J., &amp; Sylvester-Bradley, P. C. (Eds.) Stereo-Atlas of Ostracod Shells, 10 (23), The Broadwater Press, Ltd., Hertfordshire, England; pp. 127 - 138." type="journal article" year="1983" yearSuffix="b">Weitschat 1983b</bibRefCitation>
)
</emphasis>
</paragraph>
<paragraph id="4E00368C4B63C074FEA4FE0B16E5FDF7" blockId="21.[264,1323,404,710]" pageId="21" pageNumber="36">Myodocopid with carapace 2.93.1 mm long; oval in lateral view. With small rostrum and shallow rostral incisur. Posterior margin forming very slight angle at midpoint, but fairly evenly rounded. Left valve overlaps right. Delicate dentition present along dorsal margin of each valve. Ornamentation composed of small, closely spaced pits. Gills welldeveloped, with three lobes on each side. Lateral eye with about 20 ommatidia.</paragraph>
<paragraph id="4E00368C4B63C074FEA4FD331072FD47" blockId="21.[264,1323,404,710]" pageId="21" pageNumber="36">
Foreign attachments.
<bibRefCitation id="2A2E4B7D4B63C074FDABFD3311C8FD1F" author="Weitschat" box="[567,903,644,670]" pageId="21" pageNumber="54" refString="Weitschat, W. &amp; Guhl, W. (1994) Erster Nachweis fossiler Ciliaten. Palaontologische Zeitschrift, 68 (1 / 2), 17 - 31." type="journal article" year="1994">Weitschat &amp; Guhl (1994:17)</bibRefCitation>
described fossil ciliates attached to the body of one specimen.
</paragraph>
<paragraph id="4E00368C4B63C074FE94FD4B13EBFC94" blockId="21.[264,1322,764,870]" box="[264,420,764,789]" pageId="21" pageNumber="36">
<emphasis id="7CCBEA9E4B63C074FE94FD4B13EBFC94" box="[264,420,764,789]" italics="true" pageId="21" pageNumber="36">Comparisons</emphasis>
</paragraph>
<paragraph id="4E00368C4B63C074FEA4FC9311C0FCE7" blockId="21.[264,1322,764,870]" pageId="21" pageNumber="36">
Carapace differs from that of
<taxonomicName id="89BF4D0F4B63C074FD32FC931118FCBC" box="[686,855,804,829]" class="Ostracoda" family="Cylindroleberididae" genus="Mesoleberis" higherTaxonomySource="GBIF" kingdom="Animalia" order="Myodocopida" pageId="21" pageNumber="36" phylum="Arthropoda" rank="species" species="hollandica">
<emphasis id="7CCBEA9E4B63C074FD32FC931118FCBC" box="[686,855,804,829]" italics="true" pageId="21" pageNumber="36">M. hollandica</emphasis>
</taxonomicName>
in having a shallower incisure and a different arrangement of central adductor muscle scars.
</paragraph>
</subSubSection>
<subSubSection id="06A565074B63C074FE94FC2B1008FAEC" pageId="21" pageNumber="36" type="discussion">
<paragraph id="4E00368C4B63C074FE94FC2B1321FC34" blockId="21.[264,1324,924,1390]" box="[264,366,924,949]" pageId="21" pageNumber="36">
<emphasis id="7CCBEA9E4B63C074FE94FC2B1321FC34" box="[264,366,924,949]" italics="true" pageId="21" pageNumber="36">Remarks</emphasis>
</paragraph>
<paragraph id="4E00368C4B63C074FEA4FC731008FAEC" blockId="21.[264,1324,924,1390]" pageId="21" pageNumber="36">
<bibRefCitation id="2A2E4B7D4B63C074FEA4FC73100EFC5F" author="Weitschat" box="[312,577,964,990]" pageId="21" pageNumber="54" refString="Weitschat, W. (1983 a) Ostracoden (O. Myodocopida) mit Weichkoerper-Erhaltung aus der Unter- Trias von Spitzbergen. [Myodocopid Ostracodes with preserved appendages from the Lower Triassic of Spitsbergen.] Palaontologische Zeitschrift, 57, 309 - 323." type="journal article" year="1983" yearSuffix="a">Weitschat (1983a:314)</bibRefCitation>
referred this species to the
<taxonomicName id="89BF4D0F4B63C074FC1CFC731652FC5F" box="[896,1053,964,990]" class="Ostracoda" family="Cypridinidae" kingdom="Animalia" order="Myodocopida" pageId="21" pageNumber="36" phylum="Arthropoda" rank="family">Cypridinidae</taxonomicName>
; however, the presence of five dorsal bristles on the second article of the first antenna indicates that the species belongs in the
<taxonomicName id="89BF4D0F4B63C074FE5BFBA310FAFBAF" box="[455,693,1044,1070]" class="Ostracoda" family="Cylindroleberididae" kingdom="Animalia" order="Myodocopida" pageId="21" pageNumber="36" phylum="Arthropoda" rank="family">Cylindroleberididae</taxonomicName>
.
<bibRefCitation id="2A2E4B7D4B63C074FD5AFBA31199FBAF" author="Weitschat" box="[710,982,1044,1070]" pageId="21" pageNumber="54" refString="Weitschat, W. (1983 a) Ostracoden (O. Myodocopida) mit Weichkoerper-Erhaltung aus der Unter- Trias von Spitzbergen. [Myodocopid Ostracodes with preserved appendages from the Lower Triassic of Spitsbergen.] Palaontologische Zeitschrift, 57, 309 - 323." type="journal article" year="1983" yearSuffix="a">Weitschat (1983a:314)</bibRefCitation>
proposed a new subfamily Triadocypridininae
<bibRefCitation id="2A2E4B7D4B63C074FE68FB8B10F5FBD7" author="Weitschat" box="[500,698,1084,1110]" pageId="21" pageNumber="54" refString="Weitschat, W. (1983 a) Ostracoden (O. Myodocopida) mit Weichkoerper-Erhaltung aus der Unter- Trias von Spitzbergen. [Myodocopid Ostracodes with preserved appendages from the Lower Triassic of Spitsbergen.] Palaontologische Zeitschrift, 57, 309 - 323." type="journal article" year="1983" yearSuffix="a">Weitschat 1983a</bibRefCitation>
for
<emphasis id="7CCBEA9E4B63C074FD69FB8B118CFBD4" box="[757,963,1084,1109]" italics="true" pageId="21" pageNumber="36">
<taxonomicName id="89BF4D0F4B63C074FD69FB8B11F0FBD4" box="[757,959,1084,1109]" class="Ostracoda" family="Cylindroleberididae" genus="Triadocypris" higherTaxonomySource="CoL" kingdom="Animalia" order="Myodocopida" pageId="21" pageNumber="36" phylum="Arthropoda" rank="species" species="spitzbergensis">T. spitzbergensis</taxonomicName>
,
</emphasis>
and
<bibRefCitation id="2A2E4B7D4B63C074FB9AFB8B16BEFBD7" author="Cohen" box="[1030,1265,1084,1110]" pageId="21" pageNumber="50" refString="Cohen, A. C., Martin, J. W. &amp; Kornicker, L. (1998) Homology of Holocene ostracode biramous appendages with those of other crustaceans: the protopod, epipod, exopod and endopod. Lethaia, 31, 251 - 265." type="journal article" year="1998">
Cohen
<emphasis id="7CCBEA9E4B63C074FBC3FB8B16D1FBD4" box="[1119,1182,1084,1109]" italics="true" pageId="21" pageNumber="36">et al.</emphasis>
(1998
</bibRefCitation>
:254, 259) raised the status to family level as Triadocyprididae. The soft parts of
<taxonomicName id="89BF4D0F4B63C074FA89FBD313E2FB24" class="Ostracoda" family="Cylindroleberididae" genus="Triadocypris" higherTaxonomySource="CoL" kingdom="Animalia" order="Myodocopida" pageId="21" pageNumber="36" phylum="Arthropoda" rank="species" species="spitzbergensis">
<emphasis id="7CCBEA9E4B63C074FA89FBD313E2FB24" italics="true" pageId="21" pageNumber="36">T. spitzbergensis</emphasis>
</taxonomicName>
differ in some respects from those of extant
<taxonomicName id="89BF4D0F4B63C074FC58FB3B16E1FB27" box="[964,1198,1164,1190]" class="Ostracoda" family="Cylindroleberididae" kingdom="Animalia" order="Myodocopida" pageId="21" pageNumber="36" phylum="Arthropoda" rank="family">Cylindroleberididae</taxonomicName>
(
<bibRefCitation id="2A2E4B7D4B63C074FB23FB3B1322FB4F" author="Cohen" pageId="21" pageNumber="50" refString="Cohen, A. C., Martin, J. W. &amp; Kornicker, L. (1998) Homology of Holocene ostracode biramous appendages with those of other crustaceans: the protopod, epipod, exopod and endopod. Lethaia, 31, 251 - 265." type="journal article" year="1998">
Cohen
<emphasis id="7CCBEA9E4B63C074FA89FB3B1369FB4C" italics="true" pageId="21" pageNumber="36">et al.</emphasis>
1998
</bibRefCitation>
:258, 259), and the species may be a new family or subfamily. Nevertheless, the senior author believes it conservative at this time to interpret the differences as variations within the
<taxonomicName id="89BF4D0F4B63C074FE14FAB31039FA9F" box="[392,630,1284,1310]" class="Ostracoda" family="Cylindroleberididae" kingdom="Animalia" order="Myodocopida" pageId="21" pageNumber="36" phylum="Arthropoda" rank="family">Cylindroleberididae</taxonomicName>
. Several species known only from specimens without soft parts but with carapaces somewhat similar to that of
<taxonomicName id="89BF4D0F4B63C074FC1DFA9B160BFAC4" box="[897,1092,1324,1349]" class="Ostracoda" family="Cylindroleberididae" genus="Triadocypris" higherTaxonomySource="CoL" kingdom="Animalia" order="Myodocopida" pageId="21" pageNumber="36" phylum="Arthropoda" rank="species" species="spitzbergensis">
<emphasis id="7CCBEA9E4B63C074FC1DFA9B160BFAC4" box="[897,1092,1324,1349]" italics="true" pageId="21" pageNumber="36">T. spitzbergensis</emphasis>
</taxonomicName>
have been referred tentatively to
<emphasis id="7CCBEA9E4B63C074FE35FAE31008FAEC" box="[425,583,1364,1389]" italics="true" pageId="21" pageNumber="36">
<taxonomicName id="89BF4D0F4B63C074FE35FAE3100CFAEC" box="[425,579,1364,1389]" class="Ostracoda" family="Cylindroleberididae" genus="Triadocypris" higherTaxonomySource="CoL" kingdom="Animalia" order="Myodocopida" pageId="21" pageNumber="36" phylum="Arthropoda" rank="genus">Triadocypris</taxonomicName>
.
</emphasis>
</paragraph>
</subSubSection>
</treatment>
</document>