187 lines
22 KiB
XML
187 lines
22 KiB
XML
<document id="588CF7838937296A197F1908272F14B4" ID-ISSN="0003-0090" IM.materialsCitations_approvedBy="felipe" IM.tables_requiresApprovalFor="existingObjects,plazi" IM.taxonomicNames_approvedBy="felipe" checkinTime="1630276700656" checkinUser="felipe" docAuthor="TEDFORD R. H., WANG X. & TAYLOR B. E." docDate="2009" docId="173487AEFF99074AFF027287FBDBFBB1" docLanguage="en" docName="B325.pdf" docOrigin="Bulletin of the American Museum of Natural History 2009 (325)" docStyle="DocumentStyle:2B34016C1EBFE58B07368F9517618743.3:BulAmeMusNatHis.2000-2010.journal_article.0cover.type1" docStyleId="2B34016C1EBFE58B07368F9517618743" docStyleName="BulAmeMusNatHis.2000-2010.journal_article.0cover.type1" docStyleVersion="3" docTitle="Metalopex bakeri TEDFORD R. H. & WANG X. & TAYLOR B. E. 2009, new species" docType="treatment" docVersion="2" lastPageNumber="68" masterDocId="EB0DFFD6FFDB0709FFD7770AFFEFFFB9" masterDocTitle="Phylogenetic Systematics Of The North American Fossil Caninae (Carnivora: Canidae)" masterLastPageNumber="218" masterPageNumber="1" pageNumber="67" updateTime="1699210124599" updateUser="plazi" zenodo-license-document="CC-BY-4.0">
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<mods:titleInfo id="7A12FCF6F840F794824E77B61C00249B">
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<mods:title id="AAAF849191944B646D87BDB2E851311B">Phylogenetic Systematics Of The North American Fossil Caninae (Carnivora: Canidae)</mods:title>
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</mods:titleInfo>
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<mods:roleTerm id="4C45587F5A7F100D0A24849697A72F07">Author</mods:roleTerm>
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<mods:namePart id="A2DEE0334AE41387C7B8EA81227AAD58">TEDFORD R. H.</mods:namePart>
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<mods:roleTerm id="DF1DB971D1EAEE341BB689FA90DA431A">Author</mods:roleTerm>
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<mods:namePart id="B31062767236045F8FC5090824FE64CA">WANG X.</mods:namePart>
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<mods:roleTerm id="40EE13E6AD88595A5889FC190F008158">Author</mods:roleTerm>
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<mods:namePart id="E98A3F9BA79F0A5A29E75AFAA1ECE796">TAYLOR B. E.</mods:namePart>
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<mods:typeOfResource id="03045CC63F52FC0ADE95A4FA930F893A">text</mods:typeOfResource>
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<mods:title id="16891AD12E1C50AC55C90C7CF0C10209">Bulletin of the American Museum of Natural History</mods:title>
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<mods:part id="E68D7C99411D2DDD6D82E2EC9B350F1E">
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<mods:date id="5849F0A1DCE709CA80696C243C7FC64C">2009</mods:date>
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<mods:number id="B5776FE1D85D8F4E316A46FEBDCDA8B6">2009-09-03</mods:number>
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<mods:detail id="EC156622B32FE196BA208312D18776A3" type="volume">
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<mods:number id="3BB6B783BBA4F15C221363C9C9E0ECDD">2009</mods:number>
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<mods:number id="FB29BDEA228B8204B0F11505B69D9D9D">325</mods:number>
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<mods:classification id="8915F309F91708580B8C9704B36A4E49">journal article</mods:classification>
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<mods:identifier id="3C159D1AD74511142A3A8F1371D3399E" type="ISSN">0003-0090</mods:identifier>
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<subSubSection id="D7876533FF99074BFF027287FDF1FA78" pageId="66" pageNumber="67" type="nomenclature">
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<paragraph id="9F2236B8FF99074BFF027287FDF1FA78" blockId="66.[213,568,1421,1474]" pageId="66" pageNumber="67">
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<heading id="C46A81D4FF99074BFF027287FDF1FA78" centered="true" fontSize="9" level="2" pageId="66" pageNumber="67" reason="2">
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<taxonomicName id="589D4D3BFF99074BFF027287FE4EFA1D" authority="TEDFORD R. H. & WANG X. & TAYLOR B. E., 2009" authorityName="TEDFORD R. H. & WANG X. & TAYLOR B. E." authorityYear="2009" box="[213,417,1421,1444]" class="Mammalia" family="Canidae" genus="Metalopex" higherTaxonomySource="GBIF" kingdom="Animalia" order="Carnivora" pageId="66" pageNumber="67" phylum="Chordata" rank="species" species="bakeri" status="sp. nov.">
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<emphasis id="ADE9EAAAFF99074BFF027287FE4EFA1D" bold="true" box="[213,417,1421,1444]" italics="true" pageId="66" pageNumber="67">Metalopex bakeri</emphasis>
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</taxonomicName>
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,
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<taxonomicNameLabel id="B6DA57D1FF99074BFE667284FDD7FA1D" box="[433,568,1422,1444]" pageId="66" pageNumber="67" rank="species">new species</taxonomicNameLabel>
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<figureCitation id="07A62A3DFF99074BFF3872A6FE61FA7B" box="[239,398,1452,1474]" captionStart="Fig" captionStartId="63.[116,155,1121,1140]" captionTargetBox="[114,1171,210,1090]" captionTargetId="figure-199@63.[114,1171,210,1091]" captionTargetPageId="63" captionText="Fig. 26. A–E. Metalopex macconnelli, late Clarendonian, California. A–B. Ramus, UCMP 33707. A. Occlusal view. B. Lateral view. C. Composite view of three isolated teeth: UCMP 112188, p4 occlusal view; UCMP 112191, M1, occlusal view, reversed; UCMP 112194, M2, occlusal view. D–E. Lower carnassial, UCMP 112187. D. Occlusal view, reversed. E. Lateral view, reversed. F–J. Metalopex bakeri, medial Hemphillian, Texas. F–G. Type ramus, F:AM 62970. F. Occlusal view. G. Lateral view. H–I. Maxillary fragment, F:AM 62971. H. Occlusal view. I. Lateral view. J. Skull fragment, F:AM 62970, dorsal view." pageId="66" pageNumber="67">Figure 26F–J</figureCitation>
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; appendix 3
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</heading>
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</paragraph>
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</subSubSection>
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<subSubSection id="D7876533FF99074AFF4C72D1FBDBFBB1" lastPageId="67" lastPageNumber="68" pageId="66" pageNumber="67" type="materials_examined">
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<paragraph id="9F2236B8FF99074BFF4C72D1FE28F91B" blockId="66.[128,654,1498,1759]" pageId="66" pageNumber="67">
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<typeStatus id="4026881AFF99074BFF4C72D1FF35FA49" box="[155,218,1499,1520]" pageId="66" pageNumber="67">Type</typeStatus>
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: F:AM 62970, left partial ramus (fig. 26F–G) with c alveolus, p1 root, p2– p4, mi, m2 alveolus, and associated incomplete frontal (fig. 26J) from the Box T Ranch, Pit 1, Hemphill beds, Ogallala Group (medial Hemphillian),
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<quantity id="58659B5DFF99074BFEFE7165FE66F93C" box="[297,393,1647,1669]" metricMagnitude="4" metricUnit="m" metricValue="1.9312128" pageId="66" pageNumber="67" unit="mi" value="12.0">12 miles</quantity>
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northwest of Higgins, Limpscomb County,
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<collectingRegion id="5D59F85AFF99074BFEAC7187FE2CF91B" box="[379,451,1677,1698]" country="United States of America" name="Texas" pageId="66" pageNumber="67">Texas</collectingRegion>
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.
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</paragraph>
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<paragraph id="9F2236B8FF99074BFF4C71A1FB89FABB" blockId="66.[128,654,1498,1759]" lastBlockId="66.[701,1228,1200,1759]" pageId="66" pageNumber="67">
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Etymology: Named for C.L. Baker, pioneering geologist of the Cenozoic rocks of the
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<collectingRegion id="5D59F85AFF99074BFD6A73BBFCEFFB7F" box="[701,768,1201,1222]" country="United States of America" name="Texas" pageId="66" pageNumber="67">Texas</collectingRegion>
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Panhandle early in the 20th Century. His discoveries led to development of the renowned fossil vertebrate faunas of the region.
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</paragraph>
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<paragraph id="9F2236B8FF99074BFD0E7200FB80FA0D" blockId="66.[701,1228,1200,1759]" pageId="66" pageNumber="67">
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Referred Materal: F:AM 62971, left maxilla (fig. 26H–I) with C–P3 (alveoli) and P4– M2 from sandy clay, Box T Ranch, West Draw, Hemphill beds, Ogallala Group (medial Hemphillian),
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<quantity id="58659B5DFF99074BFC62728BFBFAFA2E" box="[949,1045,1409,1431]" metricMagnitude="4" metricUnit="m" metricValue="1.9312128" pageId="66" pageNumber="67" unit="mi" value="12.0">12 miles</quantity>
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northwest of Higgins, Limpscomb County,
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<collectingRegion id="5D59F85AFF99074BFBF47295FB84FA0D" box="[1059,1131,1439,1460]" country="United States of America" name="Texas" pageId="66" pageNumber="67">Texas</collectingRegion>
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.
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</paragraph>
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<paragraph id="9F2236B8FF99074BFD0E72B7FC2AFA49" blockId="66.[701,1228,1200,1759]" pageId="66" pageNumber="67">
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Distribution: Only known from the medial Hemphillian of
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<collectingRegion id="5D59F85AFF99074BFCAE72D1FC2EFA49" box="[889,961,1499,1520]" country="United States of America" name="Texas" pageId="66" pageNumber="67">Texas</collectingRegion>
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.
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</paragraph>
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<paragraph id="9F2236B8FF99074BFD0E72F3FCCDF91A" blockId="66.[701,1228,1200,1759]" pageId="66" pageNumber="67">
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Diagnosis: Differs from
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<taxonomicName id="589D4D3BFF99074BFBDB72F3FB4AF9B7" authorityName="Tedford and Wang" authorityYear="2008" box="[1036,1189,1529,1550]" class="Mammalia" family="Canidae" genus="Metalopex" higherTaxonomySource="GBIF" kingdom="Animalia" order="Carnivora" pageId="66" pageNumber="67" phylum="Chordata" rank="species" species="merriami">
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<emphasis id="ADE9EAAAFF99074BFBDB72F3FB4AF9B7" box="[1036,1189,1529,1550]" italics="true" pageId="66" pageNumber="67">M. merriami</emphasis>
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</taxonomicName>
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in shorter premolars and shorter premolar row without prominent diastemata except those isolating p2; m1 trigonid short, particularly paraconid, talonid markedly wider than trigonid.
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</paragraph>
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<paragraph id="9F2236B8FF99074AFD0E71A1FE28FE4B" blockId="66.[701,1228,1200,1759]" lastBlockId="67.[93,620,213,1759]" lastPageId="67" lastPageNumber="68" pageId="66" pageNumber="67">
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Description and Comparison: The dentition of
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<taxonomicName id="589D4D3BFF99074BFCF771C0FC76F966" box="[800,921,1736,1759]" class="Mammalia" family="Canidae" genus="Metalopex" higherTaxonomySource="GBIF" kingdom="Animalia" order="Carnivora" pageId="66" pageNumber="67" phylum="Chordata" rank="species" species="bakeri">
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<emphasis id="ADE9EAAAFF99074BFCF771C0FC76F966" box="[800,921,1736,1759]" italics="true" pageId="66" pageNumber="67">M. bakeri</emphasis>
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</taxonomicName>
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is marked by numerous autapomorphies. The premolars in the
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<typeStatus id="4026881AFF98074AFDEE77DFFD84FF53" box="[569,619,213,234]" pageId="67" pageNumber="68">type</typeStatus>
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mandibular ramus are markedly shorter and slightly taller crowned than those of
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<taxonomicName id="589D4D3BFF98074AFD9F761AFF2BFEFB" authorityName="Tedford and Wang" authorityYear="2008" class="Mammalia" family="Canidae" genus="Metalopex" higherTaxonomySource="GBIF" kingdom="Animalia" order="Carnivora" pageId="67" pageNumber="68" phylum="Chordata" rank="species" species="merriami">
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<emphasis id="ADE9EAAAFF98074AFD9F761AFF2BFEFB" italics="true" pageId="67" pageNumber="68">M. merriami</emphasis>
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</taxonomicName>
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. The p2 is separated from p1 and p3 by short diastemata; the diastemata are shorter than those of
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<taxonomicName id="589D4D3BFF98074AFE8F7662FE06FEC4" authorityName="Tedford and Wang" authorityYear="2008" box="[344,489,360,381]" class="Mammalia" family="Canidae" genus="Metalopex" higherTaxonomySource="GBIF" kingdom="Animalia" order="Carnivora" pageId="67" pageNumber="68" phylum="Chordata" rank="species" species="merriami">
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<emphasis id="ADE9EAAAFF98074AFE8F7662FE06FEC4" box="[344,489,360,381]" italics="true" pageId="67" pageNumber="68">M. merriami</emphasis>
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</taxonomicName>
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. The m1 is very robust; the width of the talonid is proportionally greater relative to that of the trigonid than in
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<taxonomicName id="589D4D3BFF98074AFECF76CAFE47FE6C" authorityName="Tedford and Wang" authorityYear="2008" box="[280,424,448,469]" class="Mammalia" family="Canidae" genus="Metalopex" higherTaxonomySource="GBIF" kingdom="Animalia" order="Carnivora" pageId="67" pageNumber="68" phylum="Chordata" rank="species" species="merriami">
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<emphasis id="ADE9EAAAFF98074AFECF76CAFE47FE6C" box="[280,424,448,469]" italics="true" pageId="67" pageNumber="68">M. merriami</emphasis>
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</taxonomicName>
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. This results in a more wedge-shaped carnassial.
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</paragraph>
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<paragraph id="9F2236B8FF98074AFFAD76F0FE5BFAFD" blockId="67.[93,620,213,1759]" pageId="67" pageNumber="68">
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The
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<typeStatus id="4026881AFF98074AFF6476F1FF0AFDA9" box="[179,229,507,528]" pageId="67" pageNumber="68">type</typeStatus>
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consists of a mandibular ramus and the dorsal part of the incomplete frontal bone delimited by sutures with adjacent bones anteriorly and posteriorly. These specimens were found associated and are presumed to be one individual. They serve to complement the information on derived
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<taxonomicName id="589D4D3BFF98074AFF8A75CDFF37FD67" authorityName="Tedford and Wang" authorityYear="2008" box="[93,216,711,734]" class="Mammalia" family="Canidae" genus="Metalopex" higherTaxonomySource="GBIF" kingdom="Animalia" order="Carnivora" pageId="67" pageNumber="68" phylum="Chordata" rank="genus">
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<emphasis id="ADE9EAAAFF98074AFF8A75CDFF37FD67" box="[93,216,711,734]" italics="true" pageId="67" pageNumber="68">Metalopex</emphasis>
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</taxonomicName>
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that is missing in
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<taxonomicName id="589D4D3BFF98074AFE1B75C2FD8CFD64" authorityName="Tedford and Wang" authorityYear="2008" box="[460,611,712,733]" class="Mammalia" family="Canidae" genus="Metalopex" higherTaxonomySource="GBIF" kingdom="Animalia" order="Carnivora" pageId="67" pageNumber="68" phylum="Chordata" rank="species" species="merriami">
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<emphasis id="ADE9EAAAFF98074AFE1B75C2FD8CFD64" box="[460,611,712,733]" italics="true" pageId="67" pageNumber="68">M. merriami</emphasis>
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</taxonomicName>
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. As in
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<taxonomicName id="589D4D3BFF98074AFF7175EFFED7FD43" authorityName="Tedford and Wang" authorityYear="2008" box="[166,312,741,762]" class="Mammalia" family="Canidae" genus="Metalopex" higherTaxonomySource="GBIF" kingdom="Animalia" order="Carnivora" pageId="67" pageNumber="68" phylum="Chordata" rank="species" species="merriami">
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<emphasis id="ADE9EAAAFF98074AFF7175EFFED7FD43" box="[166,312,741,762]" italics="true" pageId="67" pageNumber="68">M. merriami</emphasis>
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</taxonomicName>
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, the skull is distinguished by the numerous plesiomorphic features. Anterior to the postorbital process the frontals are relatively flat with a prominent depression adjacent to the processes. The depression is small and almost circular in outline, unlike the larger, more elongate frontal depression in most vulpines. Like the latter, the postorbital process is solid, and the frontal sinus is absent. The posterior part of the nasal-frontal suture is shown in this fragment, which indicates that the nasals reached the level of the posteriormost part of the frontal-maxillary suture. The frontals in
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<taxonomicName id="589D4D3BFF98074AFF8A7375FF3AFB2C" box="[93,213,1150,1173]" class="Mammalia" family="Canidae" genus="Metalopex" higherTaxonomySource="GBIF" kingdom="Animalia" order="Carnivora" pageId="67" pageNumber="68" phylum="Chordata" rank="species" species="bakeri">
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<emphasis id="ADE9EAAAFF98074AFF8A7375FF3AFB2C" box="[93,213,1150,1173]" italics="true" pageId="67" pageNumber="68">M. bakeri</emphasis>
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</taxonomicName>
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show a marked postorbital constriction, as appears to be the case in
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<taxonomicName id="589D4D3BFF98074AFD9F7397FF2BFB76" authorityName="Tedford and Wang" authorityYear="2008" class="Mammalia" family="Canidae" genus="Metalopex" higherTaxonomySource="GBIF" kingdom="Animalia" order="Carnivora" pageId="67" pageNumber="68" phylum="Chordata" rank="species" species="merriami">
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<emphasis id="ADE9EAAAFF98074AFD9F7397FF2BFB76" italics="true" pageId="67" pageNumber="68">M. merriami</emphasis>
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</taxonomicName>
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. Like the latter species, the frontal crests join just posterior to the postorbital constriction and well anterior to the frontoparietal suture so that a low sagittal crest is initiated on the frontal bone.
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</paragraph>
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<paragraph id="9F2236B8FF98074AFFAD7247FBDBFBB1" blockId="67.[93,620,213,1759]" lastBlockId="67.[667,1193,213,1033]" pageId="67" pageNumber="68">
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A maxilla (F:
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<collectionCode id="F98CAE7DFF98074AFECC7247FEBFFADB" box="[283,336,1357,1378]" country="Australia" name="Australian Museum" pageId="67" pageNumber="68" type="Museum">AM</collectionCode>
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62971), referred to
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<taxonomicName id="589D4D3BFF98074AFD9F7247FF4BFA39" class="Mammalia" family="Canidae" genus="Metalopex" higherTaxonomySource="GBIF" kingdom="Animalia" order="Carnivora" pageId="67" pageNumber="68" phylum="Chordata" rank="species" species="bakeri">
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<emphasis id="ADE9EAAAFF98074AFD9F7247FF4BFA39" italics="true" pageId="67" pageNumber="68">M. bakeri</emphasis>
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</taxonomicName>
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, shows the alveoli for the canine through P3. Despite the broken condition of the upper canine alveolus, it is evident that the canine was relatively smaller and more compressed than that of
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<taxonomicName id="589D4D3BFF98074AFEAC72D4FD8CFA4C" authorityName="Tedford and Wang" authorityYear="2008" box="[379,611,1502,1525]" class="Mammalia" family="Canidae" genus="Metalopex" higherTaxonomySource="GBIF" kingdom="Animalia" order="Carnivora" pageId="67" pageNumber="68" phylum="Chordata" rank="species" species="merriami">
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<emphasis id="ADE9EAAAFF98074AFEAC72D4FD8CFA4C" box="[379,611,1502,1525]" italics="true" pageId="67" pageNumber="68">Metalopex merriami</emphasis>
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</taxonomicName>
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. The alveolus for P1 indicates a relatively robust single root. The alveoli for P2 and P3 are very short anteroposteriorly as in the lower dentition. The P2 alveolus is separated from the alveoli of P1 and P3 by diastemata measuring 3.5 and 2.0 mm, respectively. The spacing of the premolars in the maxilla referred to
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<taxonomicName id="589D4D3BFF98074AFF3871C0FE85F966" box="[239,362,1736,1759]" class="Mammalia" family="Canidae" genus="Metalopex" higherTaxonomySource="GBIF" kingdom="Animalia" order="Carnivora" pageId="67" pageNumber="68" phylum="Chordata" rank="species" species="bakeri">
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<emphasis id="ADE9EAAAFF98074AFF3871C0FE85F966" box="[239,362,1736,1759]" italics="true" pageId="67" pageNumber="68">M. bakeri</emphasis>
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</taxonomicName>
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conforms closely to that of the lower premolars in the
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<typeStatus id="4026881AFF98074AFBEE77DFFB81FF53" box="[1081,1134,213,234]" pageId="67" pageNumber="68">type</typeStatus>
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. The P4 of
|
||
<taxonomicName id="589D4D3BFF98074AFD3177F9FCB5FEB0" box="[742,858,242,265]" class="Mammalia" family="Canidae" genus="Metalopex" higherTaxonomySource="GBIF" kingdom="Animalia" order="Carnivora" pageId="67" pageNumber="68" phylum="Chordata" rank="species" species="bakeri">
|
||
<emphasis id="ADE9EAAAFF98074AFD3177F9FCB5FEB0" box="[742,858,242,265]" italics="true" pageId="67" pageNumber="68">M. bakeri</emphasis>
|
||
</taxonomicName>
|
||
is elongate and compressed with a rounded anterolabial corner and a weak lingual cingulum. When compared with
|
||
<taxonomicName id="589D4D3BFF98074AFD4C7646FCC3FED8" authorityName="Tedford and Wang" authorityYear="2008" box="[667,812,332,353]" class="Mammalia" family="Canidae" genus="Metalopex" higherTaxonomySource="GBIF" kingdom="Animalia" order="Carnivora" pageId="67" pageNumber="68" phylum="Chordata" rank="species" species="merriami">
|
||
<emphasis id="ADE9EAAAFF98074AFD4C7646FCC3FED8" box="[667,812,332,353]" italics="true" pageId="67" pageNumber="68">M. merriami</emphasis>
|
||
</taxonomicName>
|
||
, the P4 of
|
||
<taxonomicName id="589D4D3BFF98074AFC7C7646FBF3FED8" box="[939,1052,330,353]" class="Mammalia" family="Canidae" genus="Metalopex" higherTaxonomySource="GBIF" kingdom="Animalia" order="Carnivora" pageId="67" pageNumber="68" phylum="Chordata" rank="species" species="bakeri">
|
||
<emphasis id="ADE9EAAAFF98074AFC7C7646FBF3FED8" box="[939,1052,330,353]" italics="true" pageId="67" pageNumber="68">M. bakeri</emphasis>
|
||
</taxonomicName>
|
||
is similar in form and proportion relative to the molars. Both M1 and M2 are large relative to the carnassial and quadrate in shape as in
|
||
<taxonomicName id="589D4D3BFF98074AFB5176AEFCEDFE6E" authorityName="Tedford and Wang" authorityYear="2008" class="Mammalia" family="Canidae" genus="Metalopex" higherTaxonomySource="GBIF" kingdom="Animalia" order="Carnivora" pageId="67" pageNumber="68" phylum="Chordata" rank="species" species="merriami">
|
||
<emphasis id="ADE9EAAAFF98074AFB5176AEFCEDFE6E" italics="true" pageId="67" pageNumber="68">M. merriami</emphasis>
|
||
</taxonomicName>
|
||
. These molars have a low-crowned paracone and metacone and a strong labial cingulum, but the weak parastyle is separated from the preparacrista rather than joined as in
|
||
<taxonomicName id="589D4D3BFF98074AFD6E7532FCA5FDF4" authorityName="Tedford and Wang" authorityYear="2008" box="[697,842,568,589]" class="Mammalia" family="Canidae" genus="Metalopex" higherTaxonomySource="GBIF" kingdom="Animalia" order="Carnivora" pageId="67" pageNumber="68" phylum="Chordata" rank="species" species="merriami">
|
||
<emphasis id="ADE9EAAAFF98074AFD6E7532FCA5FDF4" box="[697,842,568,589]" italics="true" pageId="67" pageNumber="68">M. merriami</emphasis>
|
||
</taxonomicName>
|
||
. The M1 has a prominent but low protocone, with the postprotocrista running posteriorly to a well-developed metaconule. The hypocone is anteroposteriorly broad, with the lingual cingulum running laterally to join the labial cingulum at the paracone and ending posteriorly at the metacone. The entire perimeter of the m1 is thus surrounded by a well-developed cingulum. M2 has a large and low protocone and a very small metaconule. As in
|
||
<taxonomicName id="589D4D3BFF98074AFBDC746AFB4EFCCC" authorityName="Tedford and Wang" authorityYear="2008" box="[1035,1185,864,885]" class="Mammalia" family="Canidae" genus="Metalopex" higherTaxonomySource="GBIF" kingdom="Animalia" order="Carnivora" pageId="67" pageNumber="68" phylum="Chordata" rank="species" species="merriami">
|
||
<emphasis id="ADE9EAAAFF98074AFBDC746AFB4EFCCC" box="[1035,1185,864,885]" italics="true" pageId="67" pageNumber="68">M. merriami</emphasis>
|
||
</taxonomicName>
|
||
, the protocone and metaconule are not connected by the postprotocrista. The hypocone of M2 is also broad anteroposteriorly, and the lingual cingulum extends across the protocone, nearly to the paracone.
|
||
</paragraph>
|
||
</subSubSection>
|
||
</treatment>
|
||
</document> |