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<document id="D91ABFBE6BB4B1A48446E296C0C03EB7" ID-CLB-Dataset="294397" ID-DOI="10.1111/jfb.14302" ID-GBIF-Dataset="87104d91-5b63-4c58-8650-0575ba66c8cc" ID-ISSN="1095-8649" ID-Zenodo-Dep="10981687" IM.bibliography_approvedBy="juliana" IM.illustrations_approvedBy="juliana" IM.materialsCitations_approvedBy="felipe" IM.metadata_approvedBy="juliana" IM.taxonomicNames_approvedBy="juliana" IM.treatments_approvedBy="juliana" checkinTime="1713288844092" checkinUser="felipe" docAuthor="Smith, Moya, Manzanares, Esther, Underwood, Charlie, Healy, Chris, Clark, Brett & Johanson, Zerina" docDate="2020" docId="DC4C87C8AC61BD4BFCC2F8EE44F2F954" docLanguage="en" docName="JFishBiol.97.1.16-27.pdf" docOrigin="Journal of Fish Biology 97 (1)" docSource="http://dx.doi.org/10.1111/jfb.14302" docStyle="DocumentStyle:468F6B211EFC2E4C820479A517A5F8CC.2:JFishBiol.2018-.journal_article.closed" docStyleId="468F6B211EFC2E4C820479A517A5F8CC" docStyleName="JFishBiol.2018-.journal_article.closed" docStyleVersion="2" docTitle="Hydrolagus mirabilis Collett 1904" docType="treatment" docVersion="7" lastPageNumber="21" masterDocId="2075FFB0AC65BD4DFFF7FFC3454CFFC3" masterDocTitle="Holocephalan (Chondrichthyes) dental plates with hypermineralized dentine as a substitute for missing teeth through developmental plasticity" masterLastPageNumber="27" masterPageNumber="16" pageNumber="20" updateTime="1713545772649" updateUser="juliana">
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<mods:title id="19736AD577EC3F900118ACA5387B7772">Holocephalan (Chondrichthyes) dental plates with hypermineralized dentine as a substitute for missing teeth through developmental plasticity</mods:title>
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<mods:namePart id="A7D6C1152B77CCC55804B94271D4EDB1">Smith, Moya</mods:namePart>
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<mods:affiliation id="A6F75E40FC44AB7CE72C5F70B3D3531A">Department of Earth Sciences, Natural History Museum London, London, UK & Centre for Craniofacial and Regenerative Biology, Oral and Craniofacial Sciences King's College London, London, UK</mods:affiliation>
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<mods:nameIdentifier id="28DE162E49CC3F7D89899852CD3EBAA6" type="email">moya.smith@kcl.ac.uk</mods:nameIdentifier>
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<mods:namePart id="66AD1B4A96E7918401CE3ECBEEF6082C">Manzanares, Esther</mods:namePart>
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<mods:affiliation id="F32528B123C96775CE8CB824C57DE62E">Institut Cavanilles de Biodiversitat i Biologia Evolutiva, Universitat de Valencia, Paterna, Spain</mods:affiliation>
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<mods:namePart id="54F5E084F1198EB884E7441C41B8646F">Underwood, Charlie</mods:namePart>
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<mods:affiliation id="EA5F41E5A0BF41E89E2C4834B92264C5">Department of Earth Sciences, Natural History Museum London, London, UK & Department of Earth and Planetary Sciences, Birkbeck, University of London, London, UK</mods:affiliation>
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<mods:namePart id="1F21F067274DC38CA8A53AC08E00C2FB">Healy, Chris</mods:namePart>
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<mods:affiliation id="F5EEDA6F4CC1AC4A6BD273E5225F99FB">Centre for Craniofacial and Regenerative Biology, Oral and Craniofacial Sciences King's College London, London, UK</mods:affiliation>
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<mods:namePart id="A13A96B5BF01DF3A926C8CDB0DF94F3F">Clark, Brett</mods:namePart>
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<mods:affiliation id="ACC175EAACA4F55E578D58421F40E1FA">Core Research Laboratories, Natural History Museum, London, UK</mods:affiliation>
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<mods:namePart id="8ECB4B7CA85EED71955D6D8C1F7290E6">Johanson, Zerina</mods:namePart>
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<mods:affiliation id="378EBC1E0D5DB417600DC91A639DF086">Department of Earth Sciences, Natural History Museum London, London, UK</mods:affiliation>
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<mods:title id="D72613BB519C74ABA89A4D99292C3104">Journal of Fish Biology</mods:title>
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<mods:date id="BF9824002D21CC6C5C9858FC1898581F">2020</mods:date>
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<mods:number id="B80ABA524D91867AA6DF41DB387A1F12">2020-04-26</mods:number>
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<mods:number id="C7BE6E98DD65DEF80D67E03A0C3BA25B">97</mods:number>
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<treatment id="DC4C87C8AC61BD4BFCC2F8EE44F2F954" ID-DOI="http://doi.org/10.5281/zenodo.10993028" ID-GBIF-Taxon="225700577" ID-Zenodo-Dep="10993028" LSID="urn:lsid:plazi:treatment:DC4C87C8AC61BD4BFCC2F8EE44F2F954" httpUri="http://treatment.plazi.org/id/DC4C87C8AC61BD4BFCC2F8EE44F2F954" lastPageId="6" lastPageNumber="21" pageId="4" pageNumber="20">
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<subSubSection id="1CFF6555AC61BD49FCC2F8EE41CFF885" box="[821,1155,1836,1862]" pageId="4" pageNumber="20" type="nomenclature">
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<paragraph id="545A36DEAC61BD49FCC2F8EE41CFF885" blockId="4.[821,1155,1836,1862]" box="[821,1155,1836,1862]" pageId="4" pageNumber="20">
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<heading id="0F1281B2AC61BD49FCC2F8EE41CFF885" box="[821,1155,1836,1862]" fontSize="10" level="2" pageId="4" pageNumber="20" reason="3">
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<emphasis id="6691EACCAC61BD49FCC2F8EE4616F885" bold="true" box="[821,858,1837,1862]" pageId="4" pageNumber="20">3.2</emphasis>
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<taxonomicName id="93E54D5DAC61BD49FC68F8EF41CFF885" ID-CoL="3N7F7" authority="Collett, 1904" authorityName="Collett" authorityYear="1904" box="[927,1155,1836,1862]" class="Holocephali" family="Chimaeridae" genus="Hydrolagus" kingdom="Animalia" order="Chimaeriformes" pageId="4" pageNumber="20" phylum="Chordata" rank="species" species="mirabilis">
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<emphasis id="6691EACCAC61BD49FC68F8EF41CFF885" bold="true" box="[927,1155,1836,1862]" italics="true" pageId="4" pageNumber="20">Hydrolagus mirabilis</emphasis>
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</taxonomicName>
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</heading>
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</paragraph>
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</subSubSection>
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<subSubSection id="1CFF6555AC61BD4BFCC2F8B544F2F954" lastPageId="6" lastPageNumber="22" pageId="4" pageNumber="20" type="description">
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<paragraph id="545A36DEAC61BD48FCC2F8B546D7F9EC" blockId="4.[821,1468,1910,1965]" lastBlockId="5.[816,1464,1494,1930]" lastPageId="5" lastPageNumber="21" pageId="4" pageNumber="20">
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The anterior and posterior dental plates of a young juvenile and adult of
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<taxonomicName id="93E54D5DAC61BD49FCB9F85A46FFF86E" box="[846,947,1945,1965]" class="Holocephali" family="Chimaeridae" genus="Hydrolagus" kingdom="Animalia" order="Chimaeriformes" pageId="4" pageNumber="20" phylum="Chordata" rank="genus">
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<emphasis id="6691EACCAC61BD49FCB9F85A46FFF86E" box="[846,947,1945,1965]" italics="true" pageId="4" pageNumber="20">Hydrolagus</emphasis>
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</taxonomicName>
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(
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<figureCitation id="CCDE2A5BAC61BD49FC49F85A415AF86E" box="[958,1046,1945,1965]" captionStart="FIGURE 4" captionStartId="5.[119,210,1193,1212]" captionTargetBox="[225,1358,140,1151]" captionTargetId="figure-285@5.[224,1358,140,1152]" captionTargetPageId="5" captionText="FIGURE 4 Hydrolagus mirabilis Collet, 1904, μCT-scans. (a) Upper dentition in oral view, including anterior dental plate with distinct ridges on the lingual surface of the dental plate. (b) Upper dentition rendered (Avizo) showing ovoids and rods of hypermineralized dentine (whitlockin) in both dental plates. Red arrowheads on the developing tritoral pad on the left side of the image showing ovoids being added to form the pad. (c) Upper dentition in oral view, with posterior dental plate cut away to show ridges on the anterior dental plate. (d) and (e) Anterior dental plate, cut away to show section through developing ovoids (hypermineralized), surrounding trabecular dentine, sclerotic (hypermineralized) trabecular dentine and the ridges. (f) Anterior and posterior dental plates in symphyseal view, with opposing plates cut away to show symphyseal face of the anterior plate and the ridges. Numbered arrows indicate different regions of the plate (as in Figures 2f and 3e). Abbreviations as in previous figures" figureDoi="http://doi.org/10.5281/zenodo.10981693" httpUri="https://zenodo.org/record/10981693/files/figure.png" pageId="4" pageNumber="20">Figures 4</figureCitation>
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and 5) are comparable to those of
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<taxonomicName id="93E54D5DAC61BD49FA96F85A40FBF86E" box="[1377,1463,1945,1965]" class="Holocephali" family="Chimaeridae" genus="Chimaera" kingdom="Animalia" order="Chimaeriformes" pageId="4" pageNumber="20" phylum="Chordata" rank="genus">
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<emphasis id="6691EACCAC61BD49FA96F85A40FBF86E" box="[1377,1463,1945,1965]" italics="true" pageId="4" pageNumber="20">Chimaera</emphasis>
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</taxonomicName>
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, with an ovoid series of whitlockin in the anterior plate and a parasymphyseal rod in the adult (Figure 5b), and a small number of extra rods in the ovoid series in the juvenile (
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<figureCitation id="CCDE2A5BAC60BD48FE0FF9D8471AF9EC" box="[504,598,1563,1583]" captionStart="FIGURE 4" captionStartId="5.[119,210,1193,1212]" captionTargetBox="[225,1358,140,1151]" captionTargetId="figure-285@5.[224,1358,140,1152]" captionTargetPageId="5" captionText="FIGURE 4 Hydrolagus mirabilis Collet, 1904, μCT-scans. (a) Upper dentition in oral view, including anterior dental plate with distinct ridges on the lingual surface of the dental plate. (b) Upper dentition rendered (Avizo) showing ovoids and rods of hypermineralized dentine (whitlockin) in both dental plates. Red arrowheads on the developing tritoral pad on the left side of the image showing ovoids being added to form the pad. (c) Upper dentition in oral view, with posterior dental plate cut away to show ridges on the anterior dental plate. (d) and (e) Anterior dental plate, cut away to show section through developing ovoids (hypermineralized), surrounding trabecular dentine, sclerotic (hypermineralized) trabecular dentine and the ridges. (f) Anterior and posterior dental plates in symphyseal view, with opposing plates cut away to show symphyseal face of the anterior plate and the ridges. Numbered arrows indicate different regions of the plate (as in Figures 2f and 3e). Abbreviations as in previous figures" figureDoi="http://doi.org/10.5281/zenodo.10981693" httpUri="https://zenodo.org/record/10981693/files/figure.png" pageId="5" pageNumber="21">Figure 4b</figureCitation>
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). With respect to the posterior plate, in the earlier growth stage both an ovoid series and rods are present along the labial margin of the plate, with two rods present lingually and medially. In addition, a tritoral pad develops posterior to these two rods, appearing to form via the incorporation of individual ovoids (
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<figureCitation id="CCDE2A5BAC60BD48FE31F90A4768F91E" box="[454,548,1737,1757]" captionStart="FIGURE 4" captionStartId="5.[119,210,1193,1212]" captionTargetBox="[225,1358,140,1151]" captionTargetId="figure-285@5.[224,1358,140,1152]" captionTargetPageId="5" captionText="FIGURE 4 Hydrolagus mirabilis Collet, 1904, μCT-scans. (a) Upper dentition in oral view, including anterior dental plate with distinct ridges on the lingual surface of the dental plate. (b) Upper dentition rendered (Avizo) showing ovoids and rods of hypermineralized dentine (whitlockin) in both dental plates. Red arrowheads on the developing tritoral pad on the left side of the image showing ovoids being added to form the pad. (c) Upper dentition in oral view, with posterior dental plate cut away to show ridges on the anterior dental plate. (d) and (e) Anterior dental plate, cut away to show section through developing ovoids (hypermineralized), surrounding trabecular dentine, sclerotic (hypermineralized) trabecular dentine and the ridges. (f) Anterior and posterior dental plates in symphyseal view, with opposing plates cut away to show symphyseal face of the anterior plate and the ridges. Numbered arrows indicate different regions of the plate (as in Figures 2f and 3e). Abbreviations as in previous figures" figureDoi="http://doi.org/10.5281/zenodo.10981693" httpUri="https://zenodo.org/record/10981693/files/figure.png" pageId="5" pageNumber="21">Figure 4b</figureCitation>
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, arrowheads on left of image, Supporting Information Files S1–S3). In the adult, broad, well–developed tritoral pads are present in this position and with respect to the more medial rods, the more posterior has become intensely vascularized to resemble the more labial pad. However, the more anterior rod shows only a few openings that represent incorporation of blood vessels within the mineralized dentine. Along the labial margin, both series of ovoids and rods are present (Figure 5b).
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</paragraph>
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<caption id="009A6656AC60BD48FF80FB6A45FAFA4A" ID-DOI="http://doi.org/10.5281/zenodo.10981693" ID-Zenodo-Dep="10981693" httpUri="https://zenodo.org/record/10981693/files/figure.png" pageId="5" pageNumber="21" startId="5.[119,210,1193,1212]" subCaptionStartIDs="5.[965,1032,1368,1388] 5.[119,182,1397,1417]" subCaptionStarts="Figures 2f & figures" targetBox="[225,1358,140,1151]" targetPageId="5">
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<paragraph id="545A36DEAC60BD48FF80FB6A40CAFB34" blockId="5.[119,1461,1192,1417]" pageId="5" pageNumber="21">
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<emphasis id="6691EACCAC60BD48FF80FB6A45ABFB7F" bold="true" box="[119,231,1193,1212]" pageId="5" pageNumber="21">FIGURE 4</emphasis>
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<taxonomicName id="93E54D5DAC60BD48FEF2FB6B477DFB7F" ID-CoL="3N7F7" authority="Collett, 1904" authorityName="Collett" authorityYear="1904" box="[261,561,1192,1212]" class="Holocephali" family="Chimaeridae" genus="Hydrolagus" kingdom="Animalia" order="Chimaeriformes" pageId="5" pageNumber="21" phylum="Chordata" rank="species" species="mirabilis">
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<emphasis id="6691EACCAC60BD48FEF2FB6B44FBFB7F" box="[261,439,1192,1212]" italics="true" pageId="5" pageNumber="21">Hydrolagus mirabilis</emphasis>
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<bibRefCitation id="30744B2FAC60BD48FE4AFB6B477DFB7F" author="Collet, R." box="[445,561,1192,1212]" pageId="5" pageNumber="21" pagination="1 - 7" refId="ref8011" refString="Collet, R. (1904). Diagnoses of four hitherto undescribed fishes from the depths south of The Faroe Islands. Forhandlinger i Videnskabs - selskabet i Christiania, 9, 1 - 7." type="journal article" year="1904">Collet, 1904</bibRefCitation>
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</taxonomicName>
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, μCT-scans. (a) Upper dentition in oral view, including anterior dental plate with distinct ridges on the lingual surface of the dental plate. (b) Upper dentition rendered (Avizo) showing ovoids and rods of hypermineralized dentine (whitlockin) in both dental plates. Red arrowheads on the developing tritoral pad on the left side of the image showing ovoids being added to form the pad.
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</paragraph>
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<paragraph id="545A36DEAC60BD48FF80FAC345FAFA4A" blockId="5.[119,1461,1192,1417]" pageId="5" pageNumber="21">(c) Upper dentition in oral view, with posterior dental plate cut away to show ridges on the anterior dental plate. (d) and (e) Anterior dental plate, cut away to show section through developing ovoids (hypermineralized), surrounding trabecular dentine, sclerotic (hypermineralized) trabecular dentine and the ridges. (f) Anterior and posterior dental plates in symphyseal view, with opposing plates cut away to show symphyseal face of the anterior plate and the ridges. Numbered arrows indicate different regions of the plate (as in Figures 2f and 3e). Abbreviations as in previous figures</paragraph>
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</caption>
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<paragraph id="545A36DEAC60BD4BFCAFF9FD44F2F954" blockId="5.[816,1464,1494,1930]" lastBlockId="6.[124,773,1494,1687]" lastPageId="6" lastPageNumber="22" pageId="5" pageNumber="21">
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In both growth stages, trabecular dentine below the oral surface has been infilled with sclerotic dentine (
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<figureCitation id="CCDE2A5BAC60BD48FB42F9A24066F9B6" box="[1205,1322,1633,1653]" captionStart="FIGURE 4" captionStartId="5.[119,210,1193,1212]" captionTargetBox="[225,1358,140,1151]" captionTargetId="figure-285@5.[224,1358,140,1152]" captionTargetPageId="5" captionText="FIGURE 4 Hydrolagus mirabilis Collet, 1904, μCT-scans. (a) Upper dentition in oral view, including anterior dental plate with distinct ridges on the lingual surface of the dental plate. (b) Upper dentition rendered (Avizo) showing ovoids and rods of hypermineralized dentine (whitlockin) in both dental plates. Red arrowheads on the developing tritoral pad on the left side of the image showing ovoids being added to form the pad. (c) Upper dentition in oral view, with posterior dental plate cut away to show ridges on the anterior dental plate. (d) and (e) Anterior dental plate, cut away to show section through developing ovoids (hypermineralized), surrounding trabecular dentine, sclerotic (hypermineralized) trabecular dentine and the ridges. (f) Anterior and posterior dental plates in symphyseal view, with opposing plates cut away to show symphyseal face of the anterior plate and the ridges. Numbered arrows indicate different regions of the plate (as in Figures 2f and 3e). Abbreviations as in previous figures" figureDoi="http://doi.org/10.5281/zenodo.10981693" httpUri="https://zenodo.org/record/10981693/files/figure.png" pageId="5" pageNumber="21">Figures 4d,e</figureCitation>
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and 5d,e) and becomes deeply worn, exposing the ovoids and tritoral pads that resist deep wear (
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<figureCitation id="CCDE2A5BAC60BD48FC2DF9654115F979" box="[986,1113,1702,1722]" captionStart="FIGURE 4" captionStartId="5.[119,210,1193,1212]" captionTargetBox="[225,1358,140,1151]" captionTargetId="figure-285@5.[224,1358,140,1152]" captionTargetPageId="5" captionText="FIGURE 4 Hydrolagus mirabilis Collet, 1904, μCT-scans. (a) Upper dentition in oral view, including anterior dental plate with distinct ridges on the lingual surface of the dental plate. (b) Upper dentition rendered (Avizo) showing ovoids and rods of hypermineralized dentine (whitlockin) in both dental plates. Red arrowheads on the developing tritoral pad on the left side of the image showing ovoids being added to form the pad. (c) Upper dentition in oral view, with posterior dental plate cut away to show ridges on the anterior dental plate. (d) and (e) Anterior dental plate, cut away to show section through developing ovoids (hypermineralized), surrounding trabecular dentine, sclerotic (hypermineralized) trabecular dentine and the ridges. (f) Anterior and posterior dental plates in symphyseal view, with opposing plates cut away to show symphyseal face of the anterior plate and the ridges. Numbered arrows indicate different regions of the plate (as in Figures 2f and 3e). Abbreviations as in previous figures" figureDoi="http://doi.org/10.5281/zenodo.10981693" httpUri="https://zenodo.org/record/10981693/files/figure.png" pageId="5" pageNumber="21">Figures 4c,d,f</figureCitation>
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and 5c,d,f). Serial ridges are present on the lingual surface of the anterior dental plate, with five thick ridges in the juvenile, comparable in morphology to those in
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<taxonomicName id="93E54D5DAC60BD48FA94F92840FBF93C" box="[1379,1463,1771,1791]" class="Holocephali" family="Chimaeridae" genus="Chimaera" kingdom="Animalia" order="Chimaeriformes" pageId="5" pageNumber="21" phylum="Chordata" rank="genus">
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<emphasis id="6691EACCAC60BD48FA94F92840FBF93C" box="[1379,1463,1771,1791]" italics="true" pageId="5" pageNumber="21">Chimaera</emphasis>
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</taxonomicName>
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(
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<figureCitation id="CCDE2A5BAC60BD48FCC2F8CD46CAF8E1" box="[821,902,1806,1826]" captionStart="FIGURE 4" captionStartId="5.[119,210,1193,1212]" captionTargetBox="[225,1358,140,1151]" captionTargetId="figure-285@5.[224,1358,140,1152]" captionTargetPageId="5" captionText="FIGURE 4 Hydrolagus mirabilis Collet, 1904, μCT-scans. (a) Upper dentition in oral view, including anterior dental plate with distinct ridges on the lingual surface of the dental plate. (b) Upper dentition rendered (Avizo) showing ovoids and rods of hypermineralized dentine (whitlockin) in both dental plates. Red arrowheads on the developing tritoral pad on the left side of the image showing ovoids being added to form the pad. (c) Upper dentition in oral view, with posterior dental plate cut away to show ridges on the anterior dental plate. (d) and (e) Anterior dental plate, cut away to show section through developing ovoids (hypermineralized), surrounding trabecular dentine, sclerotic (hypermineralized) trabecular dentine and the ridges. (f) Anterior and posterior dental plates in symphyseal view, with opposing plates cut away to show symphyseal face of the anterior plate and the ridges. Numbered arrows indicate different regions of the plate (as in Figures 2f and 3e). Abbreviations as in previous figures" figureDoi="http://doi.org/10.5281/zenodo.10981693" httpUri="https://zenodo.org/record/10981693/files/figure.png" pageId="5" pageNumber="21">Figure 4</figureCitation>
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). However, in the adult the ridges are more numerous but less distinct (Figure 5). Bulbous expansions at the end of these ridges are absent in both these growth stages (
|
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<figureCitation id="CCDE2A5BAC60BD48FB46F8904053F8A4" box="[1201,1311,1875,1895]" captionStart="FIGURE 4" captionStartId="5.[119,210,1193,1212]" captionTargetBox="[225,1358,140,1151]" captionTargetId="figure-285@5.[224,1358,140,1152]" captionTargetPageId="5" captionText="FIGURE 4 Hydrolagus mirabilis Collet, 1904, μCT-scans. (a) Upper dentition in oral view, including anterior dental plate with distinct ridges on the lingual surface of the dental plate. (b) Upper dentition rendered (Avizo) showing ovoids and rods of hypermineralized dentine (whitlockin) in both dental plates. Red arrowheads on the developing tritoral pad on the left side of the image showing ovoids being added to form the pad. (c) Upper dentition in oral view, with posterior dental plate cut away to show ridges on the anterior dental plate. (d) and (e) Anterior dental plate, cut away to show section through developing ovoids (hypermineralized), surrounding trabecular dentine, sclerotic (hypermineralized) trabecular dentine and the ridges. (f) Anterior and posterior dental plates in symphyseal view, with opposing plates cut away to show symphyseal face of the anterior plate and the ridges. Numbered arrows indicate different regions of the plate (as in Figures 2f and 3e). Abbreviations as in previous figures" figureDoi="http://doi.org/10.5281/zenodo.10981693" httpUri="https://zenodo.org/record/10981693/files/figure.png" pageId="5" pageNumber="21">Figures 4c,f</figureCitation>
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and 5c,f). As in
|
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<taxonomicName id="93E54D5DAC60BD48FCC7F8B546C8F849" box="[816,900,1910,1930]" class="Holocephali" family="Chimaeridae" genus="Chimaera" kingdom="Animalia" order="Chimaeriformes" pageId="5" pageNumber="21" phylum="Chordata" rank="genus">
|
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<emphasis id="6691EACCAC60BD48FCC7F8B546C8F849" box="[816,900,1910,1930]" italics="true" pageId="5" pageNumber="21">Chimaera</emphasis>
|
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</taxonomicName>
|
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, there may be correspondence between the ridges and the forming ovoids (
|
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<figureCitation id="CCDE2A5BAC63BD4BFEE7FA15443CFA29" box="[272,368,1494,1514]" captionStart="FIGURE 4" captionStartId="5.[119,210,1193,1212]" captionTargetBox="[225,1358,140,1151]" captionTargetId="figure-285@5.[224,1358,140,1152]" captionTargetPageId="5" captionText="FIGURE 4 Hydrolagus mirabilis Collet, 1904, μCT-scans. (a) Upper dentition in oral view, including anterior dental plate with distinct ridges on the lingual surface of the dental plate. (b) Upper dentition rendered (Avizo) showing ovoids and rods of hypermineralized dentine (whitlockin) in both dental plates. Red arrowheads on the developing tritoral pad on the left side of the image showing ovoids being added to form the pad. (c) Upper dentition in oral view, with posterior dental plate cut away to show ridges on the anterior dental plate. (d) and (e) Anterior dental plate, cut away to show section through developing ovoids (hypermineralized), surrounding trabecular dentine, sclerotic (hypermineralized) trabecular dentine and the ridges. (f) Anterior and posterior dental plates in symphyseal view, with opposing plates cut away to show symphyseal face of the anterior plate and the ridges. Numbered arrows indicate different regions of the plate (as in Figures 2f and 3e). Abbreviations as in previous figures" figureDoi="http://doi.org/10.5281/zenodo.10981693" httpUri="https://zenodo.org/record/10981693/files/figure.png" pageId="6" pageNumber="22">Figures 4e</figureCitation>
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and 5e, double arrow). In addition, trabecular dentine forms in advance of these ridges forming in both growth stages (
|
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<figureCitation id="CCDE2A5BAC63BD4BFF35F9D8446DF9EC" box="[194,289,1563,1583]" captionStart="FIGURE 4" captionStartId="5.[119,210,1193,1212]" captionTargetBox="[225,1358,140,1151]" captionTargetId="figure-285@5.[224,1358,140,1152]" captionTargetPageId="5" captionText="FIGURE 4 Hydrolagus mirabilis Collet, 1904, μCT-scans. (a) Upper dentition in oral view, including anterior dental plate with distinct ridges on the lingual surface of the dental plate. (b) Upper dentition rendered (Avizo) showing ovoids and rods of hypermineralized dentine (whitlockin) in both dental plates. Red arrowheads on the developing tritoral pad on the left side of the image showing ovoids being added to form the pad. (c) Upper dentition in oral view, with posterior dental plate cut away to show ridges on the anterior dental plate. (d) and (e) Anterior dental plate, cut away to show section through developing ovoids (hypermineralized), surrounding trabecular dentine, sclerotic (hypermineralized) trabecular dentine and the ridges. (f) Anterior and posterior dental plates in symphyseal view, with opposing plates cut away to show symphyseal face of the anterior plate and the ridges. Numbered arrows indicate different regions of the plate (as in Figures 2f and 3e). Abbreviations as in previous figures" figureDoi="http://doi.org/10.5281/zenodo.10981693" httpUri="https://zenodo.org/record/10981693/files/figure.png" pageId="6" pageNumber="22">Figures 4f</figureCitation>
|
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and 5f), but always inside a shell of outer dentine. The posterior furrow and oral-aboral ridge are present in both growth stages although the furrow appears to be deeper in the adults (
|
|||
|
|
<figureCitation id="CCDE2A5BAC63BD4BFF76F9404592F954" box="[129,222,1667,1687]" captionStart="FIGURE 4" captionStartId="5.[119,210,1193,1212]" captionTargetBox="[225,1358,140,1151]" captionTargetId="figure-285@5.[224,1358,140,1152]" captionTargetPageId="5" captionText="FIGURE 4 Hydrolagus mirabilis Collet, 1904, μCT-scans. (a) Upper dentition in oral view, including anterior dental plate with distinct ridges on the lingual surface of the dental plate. (b) Upper dentition rendered (Avizo) showing ovoids and rods of hypermineralized dentine (whitlockin) in both dental plates. Red arrowheads on the developing tritoral pad on the left side of the image showing ovoids being added to form the pad. (c) Upper dentition in oral view, with posterior dental plate cut away to show ridges on the anterior dental plate. (d) and (e) Anterior dental plate, cut away to show section through developing ovoids (hypermineralized), surrounding trabecular dentine, sclerotic (hypermineralized) trabecular dentine and the ridges. (f) Anterior and posterior dental plates in symphyseal view, with opposing plates cut away to show symphyseal face of the anterior plate and the ridges. Numbered arrows indicate different regions of the plate (as in Figures 2f and 3e). Abbreviations as in previous figures" figureDoi="http://doi.org/10.5281/zenodo.10981693" httpUri="https://zenodo.org/record/10981693/files/figure.png" pageId="6" pageNumber="22">Figures 4f</figureCitation>
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and 5f, arrows 1 and 2).
|
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</paragraph>
|
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</subSubSection>
|
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</treatment>
|
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</document>
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