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<document id="79EAFA80BF217ABAC0AB3CAF1F46F26C" ID-CLB-Dataset="31761" ID-DOI="10.11646/zootaxa.4338.1.3" ID-GBIF-Dataset="26f58d19-4735-470a-a8c7-f9b5cea8a1d6" ID-ISSN="1175-5326" ID-Zenodo-Dep="1035558" ID-ZooBank="398F004C-B562-415B-916D-DBA32EF0F88E" IM.materialsCitations_approvedBy="felipe" IM.metadata_approvedBy="felipe" IM.tables_requiresApprovalFor="existingObjects,plazi" IM.taxonomicNames_approvedBy="felipe" checkinTime="1508827121455" checkinUser="plazi" docAuthor="Pérez, Damián E. &amp; Del Río, Claudia J." docDate="2017" docId="03F4878BB816B47EFF6877EDFF9DFB3E" docLanguage="en" docName="zootaxa.4338.1.3.pdf" docOrigin="Zootaxa 4338 (1)" docStyle="DocumentStyle:647186512141C8FC8976D5BCC54AEB7D.9:Zootaxa.2013-.journal_article" docStyleId="647186512141C8FC8976D5BCC54AEB7D" docStyleName="Zootaxa.2013-.journal_article" docStyleVersion="9" docTitle="Kolmeris tehuelchana" docType="treatment" docVersion="10" lastPageNumber="69" masterDocId="FFCDFFF3B807B46CFFFF7221FF70FF9E" masterDocTitle="Systematics of the family Carditidae (Bivalvia: Archiheterodonta) in the Cenozoic of Argentina" masterLastPageNumber="84" masterPageNumber="51" pageNumber="68" updateTime="1698470132125" updateUser="ExternalLinkService">
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<mods:title id="E1F8320A48F008ED8510D704A75D1A5C">Systematics of the family Carditidae (Bivalvia: Archiheterodonta) in the Cenozoic of Argentina</mods:title>
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<mods:namePart id="35791441BCA3BD9D8FB212319A5FDCDB">Pérez, Damián E.</mods:namePart>
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<mods:namePart id="621C0B0C57F69384E0E829DBEC0CC8D2">Del Río, Claudia J.</mods:namePart>
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<mods:title id="411707E5D6675226E551BA719877499F">Zootaxa</mods:title>
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<mods:date id="0469C03B760D4AB9FF9D2C138B07936E">2017</mods:date>
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<mods:number id="7D8852F5C805B9235775BCAD4EDB1FE6">2017-10-24</mods:number>
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<mods:identifier id="91E25C00B53CC00195D03922557BF934" type="DOI">10.11646/zootaxa.4338.1.3</mods:identifier>
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<treatment id="03F4878BB816B47EFF6877EDFF9DFB3E" ID-DOI="http://doi.org/10.5281/zenodo.6030277" ID-GBIF-Taxon="135465212" ID-Zenodo-Dep="6030277" LSID="urn:lsid:plazi:treatment:03F4878BB816B47EFF6877EDFF9DFB3E" httpUri="http://treatment.plazi.org/id/03F4878BB816B47EFF6877EDFF9DFB3E" lastPageId="18" lastPageNumber="69" pageId="17" pageNumber="68">
<subSubSection id="C3476516B816B47DFF6877EDFE56F999" pageId="17" pageNumber="68" type="nomenclature">
<paragraph id="8BE2369DB816B47DFF6877EDFD12FA78" blockId="17.[151,610,1484,1543]" box="[151,610,1484,1510]" pageId="17" pageNumber="68">
<heading id="D0AA81F1B816B47DFF6877EDFD12FA78" bold="true" box="[151,610,1484,1510]" fontSize="11" level="1" pageId="17" pageNumber="68" reason="1">
<taxonomicName id="4C5D4D1EB816B47DFF6877EDFD12FA78" authority="(Ihering, 1907)" baseAuthorityName="Ihering" baseAuthorityYear="1907" box="[151,610,1484,1510]" class="Bivalvia" family="Carditidae" genus="Kolmeris" kingdom="Animalia" order="Carditoida" pageId="17" pageNumber="68" phylum="Mollusca" rank="species" species="tehuelchana">
<emphasis id="B929EA8FB816B47DFF6877EDFD12FA78" bold="true" box="[151,610,1484,1510]" pageId="17" pageNumber="68">
<emphasis id="B929EA8FB816B47DFF6877EDFED1FA78" bold="true" box="[151,417,1484,1510]" italics="true" pageId="17" pageNumber="68">Kolmeris tehuelchana</emphasis>
(
<bibRefCitation id="EFCC4B6CB816B47DFE4F77EDFD29FA78" author="Ihering" box="[432,601,1484,1510]" pageId="17" pageNumber="68" refString="Ihering, H. von (1907) Les Mollusques fossiles du Tertiaire et du Cretace superieur de l'Argentine. Anales del Museo Nacional Buenos Aires, Serie 3, 7, 1 - 611." type="journal article" year="1907">Ihering, 1907</bibRefCitation>
)
</emphasis>
</taxonomicName>
</heading>
</paragraph>
<paragraph id="8BE2369DB816B47DFF6877CFFE56F999" blockId="17.[151,610,1484,1543]" box="[151,294,1518,1543]" pageId="17" pageNumber="68">Figure 5.3–6</paragraph>
</subSubSection>
<subSubSection id="C3476516B816B47DFF687417FDACF978" pageId="17" pageNumber="68" type="description">
<paragraph id="8BE2369DB816B47DFF687417FC74F9F5" blockId="17.[151,908,1590,1766]" pageId="17" pageNumber="68">
v*1907
<taxonomicName id="4C5D4D1EB816B47DFF167417FD4FF9D2" authority="Ihering" authorityName="Ihering-Ihering" authorityYear="1907" box="[233,575,1590,1612]" class="Bivalvia" family="Carditidae" genus="Venericardia" higherTaxonomySource="CoL" kingdom="Animalia" order="Carditida" pageId="17" pageNumber="68" phylum="Mollusca" rank="species" species="tehuelchana">
<emphasis id="B929EA8FB816B47DFF167417FE9DF9D2" box="[233,493,1590,1612]" italics="true" pageId="17" pageNumber="68">Venericardia tehuelchana</emphasis>
Ihering
</taxonomicName>
, p. 412–413, pl. 16, figs 107a–b.
<date id="FFE3105DB816B47DFF687477FFABF9F5" box="[151,219,1621,1643]" pageId="17" pageNumber="68" value="1907-05">v.1907</date>
<taxonomicName id="4C5D4D1EB816B47DFF1E7474FE9AF9F5" authority="Ihering" authorityName="Ihering" box="[225,490,1621,1643]" class="Bivalvia" family="Carditidae" genus="Venericardia" higherTaxonomySource="CoL" kingdom="Animalia" order="Carditida" pageId="17" pageNumber="68" phylum="Mollusca" rank="species" species="dalli">
<emphasis id="B929EA8FB816B47DFF1E7474FEE8F9F5" box="[225,408,1621,1643]" italics="true" pageId="17" pageNumber="68">Venericardia dalli</emphasis>
Ihering
</taxonomicName>
, p. 413, pl. 16, figs 108a–d.
</paragraph>
<paragraph id="8BE2369DB816B47DFF687455FDBCF914" blockId="17.[151,908,1590,1766]" box="[151,716,1652,1674]" pageId="17" pageNumber="68">
1914
<taxonomicName id="4C5D4D1EB816B47DFF2F7455FDF8F914" authority="Ihering-Ihering" authorityName="Ihering-Ihering" authorityYear="1907" box="[208,648,1652,1674]" class="Bivalvia" family="Carditidae" genus="Venericardia" higherTaxonomySource="CoL" kingdom="Animalia" order="Carditida" pageId="17" pageNumber="68" phylum="Mollusca" rank="species" species="tehuelchana">
<emphasis id="B929EA8FB816B47DFF2F7455FEA4F914" box="[208,468,1652,1674]" italics="true" pageId="17" pageNumber="68">Venericardia tehuelchana</emphasis>
Ihering—Ihering
</taxonomicName>
, p. 45.
</paragraph>
<paragraph id="8BE2369DB816B47DFF6874B2FDACF978" blockId="17.[151,908,1590,1766]" pageId="17" pageNumber="68">
<date id="FFE3105DB816B47DFF6874B2FFABF936" box="[151,219,1682,1704]" pageId="17" pageNumber="68" value="1933-05">v.1933</date>
<taxonomicName id="4C5D4D1EB816B47DFF1E74B3FD29F936" authority="Ihering-Feruglio" authorityName="Ihering-Feruglio" box="[225,601,1682,1704]" class="Bivalvia" family="Carditidae" genus="Venericardia" higherTaxonomySource="CoL" kingdom="Animalia" order="Carditida" pageId="17" pageNumber="68" phylum="Mollusca" rank="species" species="dalli">
<emphasis id="B929EA8FB816B47DFF1E74B3FEE8F936" box="[225,408,1682,1704]" italics="true" pageId="17" pageNumber="68">Venericardia dalli</emphasis>
Ihering—Feruglio
</taxonomicName>
, p. 96, pl. 8, figs
<date id="FFE3105DB816B47DFCF774B3FFA6F959" pageId="17" pageNumber="68" value="1933-05-04" valueMax="1933-05-07" valueMin="1933-05-04">4–7. v1933</date>
<taxonomicName id="4C5D4D1EB816B47DFF237490FDD2F959" authority="Ihering-Feruglio" authorityName="Ihering-Feruglio" box="[220,674,1713,1735]" class="Bivalvia" family="Carditidae" genus="Venericardia" higherTaxonomySource="CoL" kingdom="Animalia" order="Carditida" pageId="17" pageNumber="68" phylum="Mollusca" rank="species" species="tehuelchana">
<emphasis id="B929EA8FB816B47DFF237490FE90F959" box="[220,480,1713,1735]" italics="true" pageId="17" pageNumber="68">Venericardia tehuelchana</emphasis>
Ihering—Feruglio
</taxonomicName>
, p. 96, pl. 8, figs
<date id="FFE3105DB816B47DFCAE7490FFBAF978" pageId="17" pageNumber="68" value="1996-03-01">
1–3.
<emphasis id="B929EA8FB816B47DFF6874F1FFBAF978" box="[151,202,1744,1766]" italics="true" pageId="17" pageNumber="68">1996</emphasis>
</date>
<taxonomicName id="4C5D4D1EB816B47DFF2F74F1FDFCF978" authority="Ihering-Parodiz" authorityName="Ihering-Parodiz" box="[208,652,1744,1766]" class="Bivalvia" family="Carditidae" genus="Venericardia" higherTaxonomySource="CoL" kingdom="Animalia" order="Carditida" pageId="17" pageNumber="68" phylum="Mollusca" rank="species" species="tehuelchana">Venericardia tehuelchana Ihering—Parodiz</taxonomicName>
, p. 273.
</paragraph>
</subSubSection>
<subSubSection id="C3476516B816B47DFF687533FE2CF825" pageId="17" pageNumber="68" type="materials_examined">
<paragraph id="8BE2369DB816B47DFF687533FE90F8ED" blockId="17.[151,1436,1810,2015]" pageId="17" pageNumber="68">
<materialsCitation id="3B353CC0B816B47DFF687533FE35F8D1" ID-GBIF-Occurrence="1675508632" location="Terraces of Cerro Laciar" pageId="17" pageNumber="68" specimenCount="2" stateProvince="Santa Cruz Province" typeStatus="holotype">
<emphasis id="B929EA8FB816B47DFF687533FE2BF8B5" bold="true" box="[151,347,1810,1835]" pageId="17" pageNumber="68">
<typeStatus id="54E6883FB816B47DFF687533FFA2F8B5" box="[151,210,1810,1835]" pageId="17" pageNumber="68">Type</typeStatus>
specimens.
</emphasis>
<typeStatus id="54E6883FB816B47DFE9B7533FEBCF8B5" box="[356,460,1810,1835]" pageId="17" pageNumber="68" type="holotype">Holotype</typeStatus>
MACN-Pi 371, one left valve from
<location id="8E826046B816B47DFC8E7532FBF9F8B5" LSID="urn:lsid:plazi:treatment:03F4878BB816B47EFF6877EDFF9DFB3E:8E826046B816B47DFC8E7532FBF9F8B5" box="[881,1161,1810,1835]" name="Terraces of Cerro Laciar" pageId="17" pageNumber="68" stateProvince="Santa Cruz Province">Terraces of Cerro Laciar</location>
(
<bibRefCitation id="EFCC4B6CB816B47DFB657533FA34F8B5" author="Feruglio" box="[1178,1348,1810,1835]" pageId="17" pageNumber="68" refString="Feruglio, E. (1954) Alcune nuove forme di brachiopodi e molluschi del Terziario e Cretaceo superiore della Patagonia. Pubblicazioni dell' Istituto Geologico della Universita di Torino, 3, 1 - 45." type="journal article" year="1954">Feruglio, 1954</bibRefCitation>
) (
<collectingRegion id="4999F87FB816B47DFAA37532FE4DF8D1" country="Argentina" name="Santa Cruz" pageId="17" pageNumber="68">
Santa
<collectingRegion id="4999F87FB816B47DFF687516FE4DF8D1" box="[151,317,1846,1871]" inferredBySuffix="true" pageId="17" pageNumber="68">Cruz Province</collectingRegion>
</collectingRegion>
)
</materialsCitation>
.
<materialsCitation id="3B353CC0B816B47DFEB07516FEACF8ED" ID-GBIF-Occurrence="1675508640" location="Terraces of Cerro Laciar" pageId="17" pageNumber="68" specimenCount="1" stateProvince="Santa Cruz Province" typeStatus="paratype">
<typeStatus id="54E6883FB816B47DFEB07516FECCF8D1" box="[335,444,1847,1871]" pageId="17" pageNumber="68" type="paratype">Paratypes</typeStatus>
MACN-Pi 371, nine left and eight right valves from
<location id="8E826046B816B47DFBEC7516FA55F8D1" LSID="urn:lsid:plazi:treatment:03F4878BB816B47EFF6877EDFF9DFB3E:8E826046B816B47DFBEC7516FA55F8D1" box="[1043,1317,1846,1871]" name="Terraces of Cerro Laciar" pageId="17" pageNumber="68" stateProvince="Santa Cruz Province">Terraces of Cerro Laciar</location>
(
<bibRefCitation id="EFCC4B6CB816B47DFACA7517FFA0F8ED" author="Feruglio" pageId="17" pageNumber="68" refString="Feruglio, E. (1954) Alcune nuove forme di brachiopodi e molluschi del Terziario e Cretaceo superiore della Patagonia. Pubblicazioni dell' Istituto Geologico della Universita di Torino, 3, 1 - 45." type="journal article" year="1954">Feruglio, 1954</bibRefCitation>
) (
<collectingRegion id="4999F87FB816B47DFF18757AFEA4F8ED" box="[231,468,1882,1907]" country="Argentina" name="Santa Cruz" pageId="17" pageNumber="68">
Santa
<collectingRegion id="4999F87FB816B47DFED1757AFEA4F8ED" box="[302,468,1882,1907]" inferredBySuffix="true" pageId="17" pageNumber="68">Cruz Province</collectingRegion>
</collectingRegion>
)
</materialsCitation>
.
</paragraph>
<paragraph id="8BE2369DB816B47DFF38755FFE2CF825" blockId="17.[151,1436,1810,2015]" pageId="17" pageNumber="68">
<emphasis id="B929EA8FB816B47DFF38755FFEF3F809" bold="true" box="[199,387,1918,1943]" pageId="17" pageNumber="68">Other material.</emphasis>
MACN-Pi 353 (Holotype of
<taxonomicName id="4C5D4D1EB816B47DFD2B755FFCD0F809" box="[724,928,1918,1943]" class="Bivalvia" family="Carditidae" genus="Venericardia" higherTaxonomySource="CoL" kingdom="Animalia" order="Carditida" pageId="17" pageNumber="68" phylum="Mollusca" rank="species" species="dalli">
<emphasis id="B929EA8FB816B47DFD2B755FFCD0F809" box="[724,928,1918,1943]" italics="true" pageId="17" pageNumber="68">Venericardia dalli</emphasis>
</taxonomicName>
), 2214, 6334; PRI.66711 (83 left valves and 100 right valves).
</paragraph>
</subSubSection>
<subSubSection id="C3476516B816B47EFF3875E7FB08FF4B" lastPageId="18" lastPageNumber="69" pageId="17" pageNumber="68" type="diagnosis">
<paragraph id="8BE2369DB816B47EFF3875E7FB08FF4B" blockId="17.[151,1436,1810,2015]" lastBlockId="18.[151,1437,151,1184]" lastPageId="18" lastPageNumber="69" pageId="17" pageNumber="68">
<emphasis id="B929EA8FB816B47DFF3875E7FE31F841" bold="true" box="[199,321,1990,2015]" pageId="17" pageNumber="68">Diagnosis.</emphasis>
Shells with long dorsal margin with a pronounced slope. Left anterior tooth elongate. Radial ribs (13 to 15) with subrectangular transverse section, increasing in width towards ventral margin, stacking towards posterior and anterior margins. Intercostal spaces with subrectangular transverse section.
</paragraph>
</subSubSection>
<subSubSection id="C3476516B815B47EFF3872FEFDCEFD53" pageId="18" pageNumber="69" type="description">
<paragraph id="8BE2369DB815B47EFF3872FEFD83FEFB" blockId="18.[151,1437,151,1184]" pageId="18" pageNumber="69">
<emphasis id="B929EA8FB815B47EFF3872FEFE29FF66" bold="true" box="[199,345,223,248]" pageId="18" pageNumber="69">Description.</emphasis>
Shell small-sized (maximum size of
<quantity id="4CA59B78B815B47EFCF972FEFC2CFF66" box="[774,860,223,248]" metricMagnitude="-2" metricUnit="m" metricValue="1.6" pageId="18" pageNumber="69" unit="mm" value="16.0">16 mm</quantity>
), subtriangular, higher than long; posterior margin rounded forming a slight angle with ventral one, dorsal margin convex and long nearly vertical, descending in a strong slope, ventral and anterior margins rounded. Umbo pointed, placed at centre of valve length. Lunule large, flat, elongate, demarcated by a deeply incised groove.
</paragraph>
<paragraph id="8BE2369DB815B47EFF38734EFEF8FD86" blockId="18.[151,1437,151,1184]" pageId="18" pageNumber="69">Right valve hinge with concave ventral edge; anterior tooth very small, thin, short, straight, inclined anteriorly, with concave anterior side; middle tooth triangular, slightly inclined posteriorly, with straigth anterior side and higher towards apex on lateral view; posterior tooth very thin and slightly curved. Left valve hinge with a concave ventral edge; elongate anterior tooth, triangular, straight, with straight anterior and posterior sides; posterior tooth elongate and straight.</paragraph>
<paragraph id="8BE2369DB815B47EFF387005FDCEFD53" blockId="18.[151,1437,151,1184]" pageId="18" pageNumber="69">External sculpture of 13 to 15 entire and low radial ribs of triangular transverse section, widening towards ventral margin; shallow intercostal spaces of subrectangular transverse section, narrower than radial ribs; ribs stacking and narrowing towards anterior and posterior sides with 3 to 6 radial ribs, leaving 3 to 6 wide radial ribs at central region. Pallial line one-fourth of total valve height. Inner ventral margin strongly crenulated, crenulations subrectangular, truncated covering entire margin.</paragraph>
</subSubSection>
<subSubSection id="C3476516B815B47EFF3870F6FB0EFCC3" pageId="18" pageNumber="69" type="discussion">
<paragraph id="8BE2369DB815B47EFF3870F6FB0EFCC3" blockId="18.[151,1437,151,1184]" pageId="18" pageNumber="69">
<emphasis id="B929EA8FB815B47EFF3870F6FE4BFD6E" bold="true" box="[199,315,727,752]" pageId="18" pageNumber="69">Remarks.</emphasis>
<bibRefCitation id="EFCC4B6CB815B47EFEBD70F6FE94FD6E" author="Ihering" box="[322,484,727,752]" pageId="18" pageNumber="69" refString="Ihering, H. von (1907) Les Mollusques fossiles du Tertiaire et du Cretace superieur de l'Argentine. Anales del Museo Nacional Buenos Aires, Serie 3, 7, 1 - 611." type="journal article" year="1907">Ihering (1907)</bibRefCitation>
described
<taxonomicName id="4C5D4D1EB815B47EFDA170F6FC58FD6E" box="[606,808,727,752]" class="Bivalvia" family="Carditidae" genus="Venericardia" higherTaxonomySource="CoL" kingdom="Animalia" order="Carditida" pageId="18" pageNumber="69" phylum="Mollusca" rank="species" species="dalli">
<emphasis id="B929EA8FB815B47EFDA170F6FC58FD6E" box="[606,808,727,752]" italics="true" pageId="18" pageNumber="69">Venericardia dalli</emphasis>
</taxonomicName>
from the same locality as
<taxonomicName id="4C5D4D1EB815B47EFBAF70F8FB8AFD6E" box="[1104,1274,727,752]" class="Bivalvia" family="Carditidae" genus="Venericardia" higherTaxonomySource="CoL" kingdom="Animalia" order="Carditida" pageId="18" pageNumber="69" phylum="Mollusca" rank="species" species="tehuelchana">
<emphasis id="B929EA8FB815B47EFBAF70F8FB8AFD6E" box="[1104,1274,727,752]" italics="true" pageId="18" pageNumber="69">K. tehuelchana</emphasis>
</taxonomicName>
, with the only major difference being the number of stacked radial ribs on the valve flanks, four in
<taxonomicName id="4C5D4D1EB815B47EFB6370DCFB9DFC8B" box="[1180,1261,764,789]" class="Bivalvia" family="Carditidae" genus="Venericardia" higherTaxonomySource="CoL" kingdom="Animalia" order="Carditida" pageId="18" pageNumber="69" phylum="Mollusca" rank="species" species="dalli">
<emphasis id="B929EA8FB815B47EFB6370DCFB9DFC8B" box="[1180,1261,764,789]" italics="true" pageId="18" pageNumber="69">V. dalli</emphasis>
</taxonomicName>
and six in
<taxonomicName id="4C5D4D1EB815B47EFA7D70DCFE50FCA6" class="Bivalvia" family="Carditidae" genus="Venericardia" higherTaxonomySource="CoL" kingdom="Animalia" order="Carditida" pageId="18" pageNumber="69" phylum="Mollusca" rank="species" species="tehuelchana">
<emphasis id="B929EA8FB815B47EFA7D70DCFE50FCA6" italics="true" pageId="18" pageNumber="69">K. tehuelchana</emphasis>
</taxonomicName>
. By observing many specimens of
<taxonomicName id="4C5D4D1EB815B47EFD4F7100FC2BFCA6" box="[688,859,799,824]" class="Bivalvia" family="Carditidae" genus="Venericardia" higherTaxonomySource="CoL" kingdom="Animalia" order="Carditida" pageId="18" pageNumber="69" phylum="Mollusca" rank="species" species="tehuelchana">
<emphasis id="B929EA8FB815B47EFD4F7100FC2BFCA6" box="[688,859,799,824]" italics="true" pageId="18" pageNumber="69">K. tehuelchana</emphasis>
</taxonomicName>
, we found the number of stacked ribs ranged from three to six.
<taxonomicName id="4C5D4D1EB815B47EFEDE7165FE9BFCC3" box="[289,491,836,861]" class="Bivalvia" family="Carditidae" genus="Venericardia" higherTaxonomySource="CoL" kingdom="Animalia" order="Carditida" pageId="18" pageNumber="69" phylum="Mollusca" rank="species" species="dalli">
<emphasis id="B929EA8FB815B47EFEDE7165FE9BFCC3" box="[289,491,836,861]" italics="true" pageId="18" pageNumber="69">Venericardia dalli</emphasis>
</taxonomicName>
is considered synonymous with
<taxonomicName id="4C5D4D1EB815B47EFCA67164FB73FCC3" box="[857,1027,836,861]" class="Bivalvia" family="Carditidae" genus="Venericardia" higherTaxonomySource="CoL" kingdom="Animalia" order="Carditida" pageId="18" pageNumber="69" phylum="Mollusca" rank="species" species="tehuelchana">
<emphasis id="B929EA8FB815B47EFCA67164FB73FCC3" box="[857,1027,836,861]" italics="true" pageId="18" pageNumber="69">K. tehuelchana</emphasis>
</taxonomicName>
, therefore.
</paragraph>
</subSubSection>
<subSubSection id="C3476516B815B47EFF387146FF9DFB3E" pageId="18" pageNumber="69" type="reference_group">
<paragraph id="8BE2369DB815B47EFF387146FEFAFC56" blockId="18.[151,1437,151,1184]" pageId="18" pageNumber="69">
<taxonomicName id="4C5D4D1EB815B47EFF387146FECFFC1E" box="[199,447,871,896]" class="Bivalvia" family="Carditidae" genus="Kolmeris" kingdom="Animalia" order="Carditoida" pageId="18" pageNumber="69" phylum="Mollusca" rank="species" species="tehuelchana">
<emphasis id="B929EA8FB815B47EFF387146FECFFC1E" box="[199,447,871,896]" italics="true" pageId="18" pageNumber="69">Kolmeris tehuelchana</emphasis>
</taxonomicName>
can be distinguished from
<taxonomicName id="4C5D4D1EB815B47EFD0A7148FB42FC1E" authority="(Powell, 1938)" baseAuthorityName="Powell" baseAuthorityYear="1938" box="[757,1074,871,896]" class="Bivalvia" family="Carditidae" genus="Pleuromeris" kingdom="Animalia" order="Carditoida" pageId="18" pageNumber="69" phylum="Mollusca" rank="species" species="murdochi">
<emphasis id="B929EA8FB815B47EFD0A7148FCF1FC1E" box="[757,897,871,896]" italics="true" pageId="18" pageNumber="69">K. murdochi</emphasis>
(
<bibRefCitation id="EFCC4B6CB815B47EFC6D7146FB59FC1E" author="Powell" box="[914,1065,871,896]" pageId="18" pageNumber="69" refString="Powell, A. W. (1938) A Pliocene Molluscan faunule from Castle Point. Records of the Auckland Institute and Museum, 2 (3), 157 - 164." type="journal article" year="1938">Powell, 1938</bibRefCitation>
)
</taxonomicName>
(upper Pliocene, New Zealand) by having a more pronounced sloping dorsal margin, a longer left anterior tooth and fewer radial ribs that are stacked on the flanks.
</paragraph>
<paragraph id="8BE2369DB815B47EFF3871F5FEF2FBAB" blockId="18.[151,1437,151,1184]" pageId="18" pageNumber="69">
<taxonomicName id="4C5D4D1EB815B47EFF3871F5FEB3FC73" box="[199,451,980,1005]" class="Bivalvia" family="Carditidae" genus="Kolmeris" kingdom="Animalia" order="Carditoida" pageId="18" pageNumber="69" phylum="Mollusca" rank="species" species="tehuelchana">
<emphasis id="B929EA8FB815B47EFF3871F5FEB3FC73" box="[199,451,980,1005]" italics="true" pageId="18" pageNumber="69">Kolmeris tehuelchana</emphasis>
</taxonomicName>
and
<taxonomicName id="4C5D4D1EB815B47EFDFB71F4FC11FC72" authority="(Laws, 1940)" baseAuthorityName="Laws" baseAuthorityYear="1940" box="[516,865,980,1004]" class="Bivalvia" family="Carditidae" genus="Pleuromeris" kingdom="Animalia" order="Carditoida" pageId="18" pageNumber="69" phylum="Mollusca" rank="species" species="paucicostata">
<emphasis id="B929EA8FB815B47EFDFB71F4FDC9FC72" box="[516,697,981,1004]" italics="true" pageId="18" pageNumber="69">K. paucicostata</emphasis>
(
<bibRefCitation id="EFCC4B6CB815B47EFD3171F5FC2AFC72" author="Laws" box="[718,858,980,1004]" pageId="18" pageNumber="69" refString="Laws, C. R. (1940) The Waitotaran faunule at Kaawa Creek. Part 3. Transactions of the Royal Society of New Zealand, 69, 427 - 447." type="journal article" year="1940">Laws, 1940</bibRefCitation>
)
</taxonomicName>
(Pliocene–Recent, New Zealand) has a shell of similar outline and size, but the Patagonian species has a longer left anterior tooth and more radial ribs that are stacked on its flanks.
</paragraph>
<paragraph id="8BE2369DB815B47EFF38761EFF9DFB3E" blockId="18.[151,1437,151,1184]" pageId="18" pageNumber="69">
<taxonomicName id="4C5D4D1EB815B47EFF38761EFECFFBC6" box="[199,447,1087,1112]" class="Bivalvia" family="Carditidae" genus="Kolmeris" kingdom="Animalia" order="Carditoida" pageId="18" pageNumber="69" phylum="Mollusca" rank="species" species="tehuelchana">
<emphasis id="B929EA8FB815B47EFF38761EFECFFBC6" box="[199,447,1087,1112]" italics="true" pageId="18" pageNumber="69">Kolmeris tehuelchana</emphasis>
</taxonomicName>
differs from
<taxonomicName id="4C5D4D1EB815B47EFDA67660FCDFFBC6" authority="(Marwick, 1924)" baseAuthorityName="Marwick" baseAuthorityYear="1924" box="[601,943,1087,1112]" class="Bivalvia" family="Carditidae" genus="Venericardia" higherTaxonomySource="CoL" kingdom="Animalia" order="Carditida" pageId="18" pageNumber="69" phylum="Mollusca" rank="species" species="marshalli">
<emphasis id="B929EA8FB815B47EFDA67660FD96FBC6" box="[601,742,1087,1112]" italics="true" pageId="18" pageNumber="69">K. marshalli</emphasis>
(
<bibRefCitation id="EFCC4B6CB815B47EFD08761EFCD6FBC6" author="Marwick" box="[759,934,1087,1112]" pageId="18" pageNumber="69" refString="Marwick, J. (1924) Palaeontological notes on some Pliocene Mollusca from Hawke's Bay. Transactions and Proceedings of the New Zealand Institute, 55, 191 - 202." type="journal article" year="1924">Marwick, 1924</bibRefCitation>
)
</taxonomicName>
(upper Pliocene–Recent, New Zealand) by having a higher number of radial ribs that are stacked on the flanks and ribs that are wider towards the ventral margin.
</paragraph>
</subSubSection>
</treatment>
</document>
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