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93 lines
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<document id="A4AFF5957DF24A74B8702584617A99C3" ID-DOI="10.5070/P9361044567" ID-ISSN="0031-0298" ID-Zenodo-Dep="13750345" ID-ZooBank="EFED8DE6-E976-43A5-BD7B-F478EF0B6FF9" IM.bibliography_approvedBy="felipe" IM.illustrations_approvedBy="felipe" IM.materialsCitations_approvedBy="felipe" IM.metadata_approvedBy="felipe" IM.tables_requiresApprovalFor="existingObjects" IM.taxonomicNames_approvedBy="felipe" IM.treatments_approvedBy="felipe" checkinTime="1726018052197" checkinUser="felipe" docAuthor="Charles L. Powell, Ii, Clites, Erica C. & Poust, Ashley W." docDate="2022" docId="7A6D87C5FFCC1E057E6E4ED6FE48FAAA" docLanguage="en" docName="PaleoBios.36.44567.pdf" docOrigin="PaleoBios 36" docStyle="DocumentStyle:2D14AFDE223D5FD9EB1703D6A63DEF6C.1:PaleoBios.2018-2021.journal_article" docStyleId="2D14AFDE223D5FD9EB1703D6A63DEF6C" docStyleName="PaleoBios.2018-2021.journal_article" docStyleVersion="1" docTitle="Cetacea BRISSON 1762" docType="treatment" docVersion="2" lastPageNumber="20" masterDocId="8654FFBDFFD81E107A634D6EFFB8FF8A" masterDocTitle="Miocene marine macropaleontology of the fourth bore Caldecott Tunnel excavation, Berkeley Hills, Oakland, California, USA" masterLastPageNumber="34" masterPageNumber="1" pageNumber="19" updateTime="1726078108201" updateUser="ExternalLinkService" zenodo-license-document="CC-BY-NC-SA-4.0">
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<mods:titleInfo id="AA9F0391F500DDAC5B0F0DC1548233A0">
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<mods:title id="BE20884EC4FA83C243DBDF5D86F50861">Miocene marine macropaleontology of the fourth bore Caldecott Tunnel excavation, Berkeley Hills, Oakland, California, USA</mods:title>
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<mods:name id="B0E0FDFCFCD939EC8E258412FEAE6488" type="personal">
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<mods:roleTerm id="46E2BDEE94D4F82D6854AE29AD761602">Author</mods:roleTerm>
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<mods:namePart id="B2BE8A9044D8E3D791EE2D022A1EFDCC">Charles L. Powell, Ii</mods:namePart>
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<mods:namePart id="261224FD44C49981D1B45E15446CFCE9">Clites, Erica C.</mods:namePart>
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<mods:name id="91E9E93CCE808A6869E6F8FD922354E7" type="personal">
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<mods:namePart id="BD893F58B12709612CB3817318EDCAAC">Poust, Ashley W.</mods:namePart>
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<mods:typeOfResource id="0CF70B466D3552C69A424B485815C03F">text</mods:typeOfResource>
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<mods:title id="F26E14F7998C06C70C236140A7336233">PaleoBios</mods:title>
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<mods:part id="4BBFA7CC6A174872EC3AEDCABD70FE24">
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<mods:date id="98A044FBCF038CA1CD60B438AAF4B9B6">2022</mods:date>
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<mods:number id="4E8C91BA6312BA3D3DB6758752E379F0">36</mods:number>
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<mods:identifier id="7CFEC95D1C416FA6B245A26AF0F1C4DA" type="DOI">10.5070/P9361044567</mods:identifier>
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<mods:identifier id="3DFEC71E916E03F23221122A66B86873" type="ISSN">0031-0298</mods:identifier>
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<treatment id="7A6D87C5FFCC1E057E6E4ED6FE48FAAA" LSID="urn:lsid:plazi:treatment:7A6D87C5FFCC1E057E6E4ED6FE48FAAA" httpUri="http://treatment.plazi.org/id/7A6D87C5FFCC1E057E6E4ED6FE48FAAA" lastPageId="21" lastPageNumber="20" pageId="20" pageNumber="19">
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<subSubSection id="BADE6558FFCC1E047E6E4ED6FA83FC7A" pageId="20" pageNumber="19" type="nomenclature">
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<paragraph id="F27B36D3FFCC1E047E6E4ED6FA9AFC5A" blockId="20.[1013,1339,952,1043]" box="[1037,1314,952,976]" pageId="20" pageNumber="19">
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<heading id="A93381BFFFCC1E047E6E4ED6FA9AFC5A" allCaps="true" box="[1037,1314,952,976]" centered="true" fontSize="10" level="2" pageId="20" pageNumber="19" reason="2">
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<taxonomicName id="35C44D50FFCC1E047E6E4ED6FA9AFC5A" authority="BRISSON, 1762" authorityName="BRISSON" authorityYear="1762" box="[1037,1314,952,976]" class="Insecta" higherTaxonomySource="GBIF" kingdom="Animalia" order="Cetacea" pageId="20" pageNumber="19" phylum="Arthropoda" rank="order">
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CETACEA
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<bibRefCitation id="96554B22FFCC1E047E1D4ED6FA9AFC5A" author="Brisson, M. J." box="[1150,1314,952,976]" pageId="20" pageNumber="19" refId="ref16442" refString="Brisson, M. J. 1762. Regnum Animale in Classes IX. distributum, sive synopsis methodica. Theodorum Haak, Leiden. 296 pp." type="book" year="1762">BRISSON, 1762</bibRefCitation>
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</taxonomicName>
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</heading>
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</paragraph>
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<paragraph id="F27B36D3FFCC1E0479964EB6FA83FC7A" blockId="20.[1013,1339,952,1043]" box="[1013,1339,984,1008]" pageId="20" pageNumber="19">
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<heading id="A93381BFFFCC1E0479964EB6FA83FC7A" allCaps="true" box="[1013,1339,984,1008]" centered="true" fontSize="10" level="2" pageId="20" pageNumber="19" reason="2">
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ODONTOCETI
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<bibRefCitation id="96554B22FFCC1E047EFA4EB6FA83FC7A" author="Flower, W. H." box="[1177,1339,984,1008]" pageId="20" pageNumber="19" pagination="87 - 116" refId="ref18723" refString="Flower, W. H. 1867. Description of the skeleton of Inia geoffrensis and the skull of Pontoporia blainvillei, with remarks upon the systematic position of the animals in the order Cetacea. Transactions of the Zoological Society of London 6: 87 - 116." type="journal article" year="1867">FLOWER, 1867</bibRefCitation>
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</heading>
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</paragraph>
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</subSubSection>
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<subSubSection id="BADE6558FFCC1E057E344E95FE48FAAA" lastPageId="21" lastPageNumber="20" pageId="20" pageNumber="19" type="description">
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<paragraph id="F27B36D3FFCC1E047E344E95FB61FB99" blockId="20.[1013,1339,952,1043]" box="[1111,1241,1019,1043]" pageId="20" pageNumber="19">
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<figureCitation id="6AFF2A56FFCC1E047E344E95FB08FB99" box="[1111,1200,1019,1043]" captionStart="Figure 35" captionStartId="21.[112,187,1887,1911]" captionText="Figure 35. Odontocete premaxilla, dorsal view of hypotype, UCMP 269020." pageId="20" pageNumber="19">FIGS. 35</figureCitation>
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,
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<figureCitation id="6AFF2A56FFCC1E047ED84E95FB61FB99" box="[1211,1241,1019,1043]" captionStart="Figure 36" captionStartId="21.[831,906,1886,1910]" captionTargetBox="[132,1507,1476,1862]" captionTargetPageId="21" captionText="Figure 36. Odontocete premaxilla, lateral view of hypotype, UCMP 269020." figureDoi="http://doi.org/10.5281/zenodo.13750406" httpUri="https://zenodo.org/record/13750406/files/figure.png" pageId="20" pageNumber="19">36</figureCitation>
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</paragraph>
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<paragraph id="F27B36D3FFCC1E0579034948FCA6FD2C" blockId="20.[832,1520,1062,1217]" lastBlockId="21.[112,801,195,1312]" lastPageId="21" lastPageNumber="20" pageId="20" pageNumber="19">
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Cetacean remains recovered from the Caldecott Tunnel Tsm unit include a partial premaxilla (UCMP 269020) among other less identifiable fragments. The descriptive anatomical terminology used here follows Mead and Fordyce (2009). UCMP 269020 is a left mid-premaxilla of a medium-sized odontocete cetacean. T-shaped in cross-section, it has a sharp lateral edge which would have been flush with the maxilla and a more rounded medial border where it would have met the opposing right premaxilla in life. The ventral process is crushed and less distinguishable from the surrounding matrix, but does expand ventrally where the palatine surface would be visible in ventral view. The porcelanous part is gently convex. The labial surface, anterolateral sulcus, and any branches of the infraorbital canal are not visible, suggesting that this fragment is from the anterior half of the rostral portion. The convex rostral surface is 32.3 mm wide and the height from the palatine surface of the premaxilla is 32.5 mm. The entire fragment is
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<quantity id="353C9B36FFCD1E0578E04FE3FD63FD2D" box="[643,731,653,679]" metricMagnitude="-2" metricUnit="m" metricValue="8.0" pageId="21" pageNumber="20" unit="mm" value="80.0">80 mm</quantity>
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long.
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</paragraph>
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<caption id="A6BB665BFFCC1E047A124A05FC38F80F" ID-DOI="http://doi.org/10.5281/zenodo.13750404" ID-Zenodo-Dep="13750404" box="[113,896,1899,1925]" httpUri="https://zenodo.org/record/13750404/files/figure.png" pageId="20" pageNumber="19" startId="20.[113,200,1899,1925]" targetBox="[152,1480,1342,1867]" targetPageId="20" targetType="figure">
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<paragraph id="F27B36D3FFCC1E047A124A05FC38F80F" blockId="20.[113,896,1899,1925]" box="[113,896,1899,1925]" pageId="20" pageNumber="19">
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<emphasis id="C0B0EAC1FFCC1E047A124A05FF40F80F" bold="true" box="[113,248,1899,1925]" pageId="20" pageNumber="19">Figure 34.</emphasis>
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Mammalian rib fragment, hypotype, UCMP 270043.
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</paragraph>
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</caption>
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<paragraph id="F27B36D3FFCD1E057AF34FDEFE48FAAA" blockId="21.[112,801,195,1312]" pageId="21" pageNumber="20">
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The identification of UCMP 269020 as an odontocete is a strong stratigraphic indicator that the rocks of the western portal of the Caldecott Tunnel are Neogene in age and that the tunnel does not include any of the unnamed Cretaceous Cenomanian/Turonian sedimentary rocks present further west along Highway 24. Though many cetaceans are well known from the Oligocene of North America, including the oldest Odontocetes (Uhen 2010), their diversity is not high until the Miocene. Of the odontocete cetaceans known from the
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<collectingRegion id="3000F831FFCD1E0578ED4E83FCA4FB8D" box="[654,796,1005,1031]" country="New Zealand" name="West Coast" pageId="21" pageNumber="20">West Coast</collectingRegion>
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, several possess premaxillae with convex dorsal surfaces and without further morphology a generic assignment is not warranted. The specimen is relatively large: significantly bigger than Pliocene delphinids from the Purisima Formation, similar or slightly smaller than Physeteroids from the Round Mountain Silt (UCMP collections) and larger than
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<taxonomicName id="35C44D50FFCD1E057B6E498FFE7FFB77" authorityName="Rensberger" authorityYear="1969" box="[269,455,1249,1277]" class="Mammalia" family="Kentriodontidae" genus="Kampholophos" higherTaxonomySource="GBIF" kingdom="Animalia" order="Cetacea" pageId="21" pageNumber="20" phylum="Chordata" rank="genus">
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<emphasis id="C0B0EAC1FFCD1E057B6E498FFE7FFB77" box="[269,455,1249,1277]" italics="true" pageId="21" pageNumber="20">Kampholophos</emphasis>
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</taxonomicName>
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which has a
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<quantity id="353C9B36FFCD1E057819498DFD6EFB77" box="[634,726,1251,1277]" metricMagnitude="-2" metricUnit="m" metricValue="2.6" pageId="21" pageNumber="20" unit="mm" value="26.0">26 mm</quantity>
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wide premaxilla (Rensberger 1969).
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</paragraph>
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</subSubSection>
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</treatment>
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</document> |