Tooth serration morphologies in the genus Machimosaurus (Crocodylomorpha, Thalattosuchia) from the Late Jurassic of Europe
Identifieur interne : 000301 ( France/Analysis ); précédent : 000300; suivant : 000302Tooth serration morphologies in the genus Machimosaurus (Crocodylomorpha, Thalattosuchia) from the Late Jurassic of Europe
Auteurs : Mark T. Young [Royaume-Uni] ; Lorna Steel [Royaume-Uni] ; Stephen L. Brusatte [Royaume-Uni] ; Davide Foffa [Royaume-Uni] ; Yves Lepage [France]Source :
- Royal Society Open Science [ 2054-5703 ] ; 2014.
Abstract
Url:
DOI: 10.1098/rsos.140269
PubMed: 26064563
PubMed Central: 4448848
Affiliations:
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<record><TEI><teiHeader><fileDesc><titleStmt><title xml:lang="en">Tooth serration morphologies in the genus <italic>Machimosaurus</italic> (Crocodylomorpha, Thalattosuchia) from the Late Jurassic of Europe</title><author><name sortKey="Young, Mark T" sort="Young, Mark T" uniqKey="Young M" first="Mark T." last="Young">Mark T. Young</name><affiliation wicri:level="1"><nlm:aff id="aff1"><institution>School of GeoSciences, Grant Institute, University of Edinburgh</institution>,<addr-line>The King's Buildings, Edinburgh EH9 3FE, UK</addr-line></nlm:aff><country xml:lang="fr">Royaume-Uni</country><wicri:regionArea>The King's Buildings, Edinburgh EH9 3FE</wicri:regionArea><wicri:noRegion>Edinburgh EH9 3FE</wicri:noRegion></affiliation><affiliation wicri:level="1"><nlm:aff id="aff2"><addr-line>School of Ocean and Earth Science, National Oceanography Centre</addr-line>,<institution>University of Southampton</institution>,<addr-line>Southampton SO14 3ZH, UK</addr-line></nlm:aff><country xml:lang="fr">Royaume-Uni</country><wicri:regionArea>Southampton SO14 3ZH</wicri:regionArea></affiliation></author><author><name sortKey="Steel, Lorna" sort="Steel, Lorna" uniqKey="Steel L" first="Lorna" last="Steel">Lorna Steel</name><affiliation wicri:level="1"><nlm:aff id="aff3"><addr-line>Department of Earth Sciences, Natural History Museum, London SW7 5BD, UK</addr-line></nlm:aff><country xml:lang="fr">Royaume-Uni</country><wicri:regionArea>Department of Earth Sciences, Natural History Museum, London SW7 5BD</wicri:regionArea><wicri:noRegion>London SW7 5BD</wicri:noRegion></affiliation></author><author><name sortKey="Brusatte, Stephen L" sort="Brusatte, Stephen L" uniqKey="Brusatte S" first="Stephen L." last="Brusatte">Stephen L. Brusatte</name><affiliation wicri:level="1"><nlm:aff id="aff1"><institution>School of GeoSciences, Grant Institute, University of Edinburgh</institution>,<addr-line>The King's Buildings, Edinburgh EH9 3FE, UK</addr-line></nlm:aff><country xml:lang="fr">Royaume-Uni</country><wicri:regionArea>The King's Buildings, Edinburgh EH9 3FE</wicri:regionArea><wicri:noRegion>Edinburgh EH9 3FE</wicri:noRegion></affiliation><affiliation wicri:level="1"><nlm:aff id="aff4"><addr-line>National Museums Scotland, Chambers Street, Edinburgh EH1 1JF, UK</addr-line></nlm:aff><country xml:lang="fr">Royaume-Uni</country><wicri:regionArea>National Museums Scotland, Chambers Street, Edinburgh EH1 1JF</wicri:regionArea><wicri:noRegion>Edinburgh EH1 1JF</wicri:noRegion></affiliation></author><author><name sortKey="Foffa, Davide" sort="Foffa, Davide" uniqKey="Foffa D" first="Davide" last="Foffa">Davide Foffa</name><affiliation wicri:level="1"><nlm:aff id="aff1"><institution>School of GeoSciences, Grant Institute, University of Edinburgh</institution>,<addr-line>The King's Buildings, Edinburgh EH9 3FE, UK</addr-line></nlm:aff><country xml:lang="fr">Royaume-Uni</country><wicri:regionArea>The King's Buildings, Edinburgh EH9 3FE</wicri:regionArea><wicri:noRegion>Edinburgh EH9 3FE</wicri:noRegion></affiliation></author><author><name sortKey="Lepage, Yves" sort="Lepage, Yves" uniqKey="Lepage Y" first="Yves" last="Lepage">Yves Lepage</name><affiliation wicri:level="3"><nlm:aff id="aff5"><addr-line>Sciences et Géologie Normandes, 76620 Le Havre, France</addr-line></nlm:aff><country xml:lang="fr">France</country><wicri:regionArea>Sciences et Géologie Normandes, 76620 Le Havre</wicri:regionArea><placeName><region type="region" nuts="2">Région Normandie</region><region type="old region" nuts="2">Haute-Normandie</region><settlement type="city">Le Havre</settlement></placeName></affiliation></author></titleStmt><publicationStmt><idno type="wicri:source">PMC</idno><idno type="pmid">26064563</idno><idno type="pmc">4448848</idno><idno type="url">http://www.ncbi.nlm.nih.gov/pmc/articles/PMC4448848</idno><idno type="RBID">PMC:4448848</idno><idno type="doi">10.1098/rsos.140269</idno><date when="2014">2014</date><idno type="wicri:Area/Pmc/Corpus">000015</idno><idno type="wicri:Area/Pmc/Curation">000015</idno><idno type="wicri:Area/Pmc/Checkpoint">000034</idno><idno type="wicri:source">PubMed</idno><idno type="wicri:Area/PubMed/Corpus">000113</idno><idno type="wicri:Area/PubMed/Curation">000113</idno><idno type="wicri:Area/PubMed/Checkpoint">000113</idno><idno type="wicri:Area/Ncbi/Merge">000481</idno><idno type="wicri:Area/Ncbi/Curation">000481</idno><idno type="wicri:Area/Ncbi/Checkpoint">000481</idno><idno type="wicri:Area/Main/Merge">000312</idno><idno type="wicri:Area/Main/Curation">000314</idno><idno type="wicri:Area/Main/Exploration">000314</idno><idno type="wicri:Area/France/Extraction">000301</idno></publicationStmt><sourceDesc><biblStruct><analytic><title xml:lang="en" level="a" type="main">Tooth serration morphologies in the genus <italic>Machimosaurus</italic> (Crocodylomorpha, Thalattosuchia) from the Late Jurassic of Europe</title><author><name sortKey="Young, Mark T" sort="Young, Mark T" uniqKey="Young M" first="Mark T." last="Young">Mark T. Young</name><affiliation wicri:level="1"><nlm:aff id="aff1"><institution>School of GeoSciences, Grant Institute, University of Edinburgh</institution>,<addr-line>The King's Buildings, Edinburgh EH9 3FE, UK</addr-line></nlm:aff><country xml:lang="fr">Royaume-Uni</country><wicri:regionArea>The King's Buildings, Edinburgh EH9 3FE</wicri:regionArea><wicri:noRegion>Edinburgh EH9 3FE</wicri:noRegion></affiliation><affiliation wicri:level="1"><nlm:aff id="aff2"><addr-line>School of Ocean and Earth Science, National Oceanography Centre</addr-line>,<institution>University of Southampton</institution>,<addr-line>Southampton SO14 3ZH, UK</addr-line></nlm:aff><country xml:lang="fr">Royaume-Uni</country><wicri:regionArea>Southampton SO14 3ZH</wicri:regionArea></affiliation></author><author><name sortKey="Steel, Lorna" sort="Steel, Lorna" uniqKey="Steel L" first="Lorna" last="Steel">Lorna Steel</name><affiliation wicri:level="1"><nlm:aff id="aff3"><addr-line>Department of Earth Sciences, Natural History Museum, London SW7 5BD, UK</addr-line></nlm:aff><country xml:lang="fr">Royaume-Uni</country><wicri:regionArea>Department of Earth Sciences, Natural History Museum, London SW7 5BD</wicri:regionArea><wicri:noRegion>London SW7 5BD</wicri:noRegion></affiliation></author><author><name sortKey="Brusatte, Stephen L" sort="Brusatte, Stephen L" uniqKey="Brusatte S" first="Stephen L." last="Brusatte">Stephen L. Brusatte</name><affiliation wicri:level="1"><nlm:aff id="aff1"><institution>School of GeoSciences, Grant Institute, University of Edinburgh</institution>,<addr-line>The King's Buildings, Edinburgh EH9 3FE, UK</addr-line></nlm:aff><country xml:lang="fr">Royaume-Uni</country><wicri:regionArea>The King's Buildings, Edinburgh EH9 3FE</wicri:regionArea><wicri:noRegion>Edinburgh EH9 3FE</wicri:noRegion></affiliation><affiliation wicri:level="1"><nlm:aff id="aff4"><addr-line>National Museums Scotland, Chambers Street, Edinburgh EH1 1JF, UK</addr-line></nlm:aff><country xml:lang="fr">Royaume-Uni</country><wicri:regionArea>National Museums Scotland, Chambers Street, Edinburgh EH1 1JF</wicri:regionArea><wicri:noRegion>Edinburgh EH1 1JF</wicri:noRegion></affiliation></author><author><name sortKey="Foffa, Davide" sort="Foffa, Davide" uniqKey="Foffa D" first="Davide" last="Foffa">Davide Foffa</name><affiliation wicri:level="1"><nlm:aff id="aff1"><institution>School of GeoSciences, Grant Institute, University of Edinburgh</institution>,<addr-line>The King's Buildings, Edinburgh EH9 3FE, UK</addr-line></nlm:aff><country xml:lang="fr">Royaume-Uni</country><wicri:regionArea>The King's Buildings, Edinburgh EH9 3FE</wicri:regionArea><wicri:noRegion>Edinburgh EH9 3FE</wicri:noRegion></affiliation></author><author><name sortKey="Lepage, Yves" sort="Lepage, Yves" uniqKey="Lepage Y" first="Yves" last="Lepage">Yves Lepage</name><affiliation wicri:level="3"><nlm:aff id="aff5"><addr-line>Sciences et Géologie Normandes, 76620 Le Havre, France</addr-line></nlm:aff><country xml:lang="fr">France</country><wicri:regionArea>Sciences et Géologie Normandes, 76620 Le Havre</wicri:regionArea><placeName><region type="region" nuts="2">Région Normandie</region><region type="old region" nuts="2">Haute-Normandie</region><settlement type="city">Le Havre</settlement></placeName></affiliation></author></analytic><series><title level="j">Royal Society Open Science</title><idno type="eISSN">2054-5703</idno><imprint><date when="2014">2014</date></imprint></series></biblStruct></sourceDesc></fileDesc><profileDesc><textClass></textClass></profileDesc></teiHeader><front><div type="abstract" xml:lang="en"><p><italic>Machimosaurus</italic> was a large-bodied durophagous/chelonivorous genus of teleosaurid crocodylomorph that lived in shallow marine and brackish ecosystems during the Late Jurassic. Among teleosaurids, <italic>Machimosaurus</italic> and its sister taxon ‘<italic>Steneosaurus’</italic><italic>obtusidens</italic> are characterized by having foreshortened rostra, proportionally enlarged supratemporal fenestrae and blunt teeth with numerous apicobasal ridges and a shorter anastomosed ridged pattern in the apical region. A recent study on ‘<italic>S</italic>.’ <italic>obtusidens</italic> dentition found both true denticles and false serrations (enamel ridges which contact the carinae). Here, we comprehensively describe and figure the dentition of <italic>Machimosaurus</italic>, and find that <italic>Machimosaurus</italic><italic>buffetauti</italic> and <italic>Machimosaurus hugii</italic> have four types of serration or serration-like structures, including both denticles and false denticles on the carinae. The denticles are irregularly shaped and are not always discrete units, whereas the false denticles caused by the interaction between the superficial enamel ridges and the carinae are restricted to the apical region. Peculiarly, the most ‘denticle-like’ structures are discrete, bulbous units on the apicobasal and apical anastomosed ridges of <italic>M. hugii</italic>. These ‘pseudo-denticles’ have never, to our knowledge, previously been reported among crocodylomorphs, and their precise function is unclear. They may have increased the surface area of the apical region and/or strengthened the enamel, both of which would have been advantageous for a durophagous taxon feeding on hard objects such as turtles.</p></div></front><back><div1 type="bibliography"><listBibl><biblStruct><analytic><author><name sortKey="Andrews, Cw" uniqKey="Andrews C">CW Andrews</name></author></analytic></biblStruct><biblStruct><analytic><author><name sortKey="Lepage, Y" uniqKey="Lepage Y">Y Lepage</name></author><author><name sortKey="Buffetaut, E" uniqKey="Buffetaut E">E Buffetaut</name></author><author><name sortKey="Hua, S" uniqKey="Hua S">S Hua</name></author><author><name sortKey="Martin, Je" uniqKey="Martin J">JE Martin</name></author><author><name sortKey="Tabouelle, J" uniqKey="Tabouelle J">J Tabouelle</name></author></analytic></biblStruct><biblStruct><analytic><author><name sortKey="Young, Mt" uniqKey="Young M">MT Young</name></author><author><name sortKey="Steel, L" uniqKey="Steel L">L 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Young</name></noRegion><name sortKey="Brusatte, Stephen L" sort="Brusatte, Stephen L" uniqKey="Brusatte S" first="Stephen L." last="Brusatte">Stephen L. Brusatte</name><name sortKey="Brusatte, Stephen L" sort="Brusatte, Stephen L" uniqKey="Brusatte S" first="Stephen L." last="Brusatte">Stephen L. Brusatte</name><name sortKey="Foffa, Davide" sort="Foffa, Davide" uniqKey="Foffa D" first="Davide" last="Foffa">Davide Foffa</name><name sortKey="Steel, Lorna" sort="Steel, Lorna" uniqKey="Steel L" first="Lorna" last="Steel">Lorna Steel</name><name sortKey="Young, Mark T" sort="Young, Mark T" uniqKey="Young M" first="Mark T." last="Young">Mark T. Young</name></country><country name="France"><region name="Région Normandie"><name sortKey="Lepage, Yves" sort="Lepage, Yves" uniqKey="Lepage Y" first="Yves" last="Lepage">Yves Lepage</name></region></country></tree></affiliations></record>Pour manipuler ce document sous Unix (Dilib)
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