A tubulidentate suiform lineage (Tayassuidae, Mammalia) from the Early Miocene of Spain
Identifieur interne : 000401 ( France/Analysis ); précédent : 000400; suivant : 000402A tubulidentate suiform lineage (Tayassuidae, Mammalia) from the Early Miocene of Spain
Auteurs : M. Pickford [France] ; J. Morales [Espagne]Source :
- Comptes rendus de l'Académie des sciences. Série II. Sciences de la terre et des planètes [ 1251-8050 ] ; 1998.
Descripteurs français
- Pascal (Inist)
- Wicri :
- geographic : Espagne.
English descriptors
- KwdEn :
Abstract
Small suiform artiodactyls from Moheda, Loranca and Corcolés, Spain, possess tubulidentate microstructure in their cheek tooth roots. The oldest specimens from Moheda (MN 2a) have a few scattered tubules near the apices of the molar roots, those from Loranca (MN 2b) have numerous tubules of various diameters in contact with each other, but oriented at various angles, while specimens from Corcolés (MN 4) are completely tubulidentate with well developed, sub-parallel tubules of sub-equal diameter running the entire length of the roots. The same series of fossils shows that with the passage of geological time the roots of this tayassuid lineage became more hypsorhizic and fusion of the roots increased, while the crowns of the teeth became simpler and thinner enamelled. Selection in this lineage was therefore focused upon increasing the longevity and wear resistance of the roots, while the role of the crowns of the teeth in mastication was de-emphasised. It is hypothesised that, as in Tubulidentata and Edentata, this suiform lineage was ingesting food items which contained significant quantities of adherant earth. Whether the diet also contained ants and termites is not known.
Affiliations:
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Pascal:98-0479342Le document en format XML
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Pickford</name><affiliation wicri:level="1"><inist:fA14 i1="01"><s1>Laboratoire de paléontologie, CNRS Ura 12, 8, rue Buffon</s1><s2>75005 Paris</s2><s3>FRA</s3><sZ>1 aut.</sZ></inist:fA14><country>France</country><wicri:noRegion>75005 Paris</wicri:noRegion><placeName><settlement type="city">Paris</settlement><region type="région" nuts="2">Île-de-France</region></placeName></affiliation><affiliation wicri:level="1"><inist:fA14 i1="02"><s1>Chaire de paléoanthropologie et de préhistoire, Collège de France</s1><s2>75005 Paris</s2><s3>FRA</s3><sZ>1 aut.</sZ></inist:fA14><country>France</country><wicri:noRegion>75005 Paris</wicri:noRegion><placeName><settlement type="city">Paris</settlement><region type="région" nuts="2">Île-de-France</region></placeName></affiliation></author><author><name sortKey="Morales, J" sort="Morales, J" uniqKey="Morales J" first="J." last="Morales">J. Morales</name><affiliation wicri:level="2"><inist:fA14 i1="03"><s1>Departamento de Paleobiologia, Museo Nacional de Ciencias Naturales, J.-Gutierrez-Abascal 2</s1><s2>28006 Madrid</s2><s3>ESP</s3><sZ>2 aut.</sZ></inist:fA14><country>Espagne</country><placeName><region nuts="2" type="communauté">Communauté de Madrid</region></placeName></affiliation></author></titleStmt><publicationStmt><idno type="wicri:source">INIST</idno><idno type="inist">98-0479342</idno><date when="1998">1998</date><idno type="stanalyst">PASCAL 98-0479342 INIST</idno><idno type="RBID">Pascal:98-0479342</idno><idno type="wicri:Area/PascalFrancis/Corpus">000751</idno><idno type="wicri:Area/PascalFrancis/Curation">000B21</idno><idno type="wicri:Area/PascalFrancis/Checkpoint">000762</idno><idno type="wicri:explorRef" wicri:stream="PascalFrancis" wicri:step="Checkpoint">000762</idno><idno type="wicri:doubleKey">1251-8050:1998:Pickford M:a:tubulidentate:suiform</idno><idno type="wicri:Area/Main/Merge">009F44</idno><idno type="wicri:Area/Main/Curation">009A71</idno><idno type="wicri:Area/Main/Exploration">009A71</idno><idno type="wicri:Area/France/Extraction">000401</idno></publicationStmt><sourceDesc><biblStruct><analytic><title xml:lang="en" level="a">A tubulidentate suiform lineage (Tayassuidae, Mammalia) from the Early Miocene of Spain</title><author><name sortKey="Pickford, M" sort="Pickford, M" uniqKey="Pickford M" first="M." last="Pickford">M. Pickford</name><affiliation wicri:level="3"><inist:fA14 i1="01"><s1>Laboratoire de paléontologie, CNRS Ura 12, 8, rue Buffon</s1><s2>75005 Paris</s2><s3>FRA</s3><sZ>1 aut.</sZ></inist:fA14><country>France</country><placeName><region type="region" nuts="2">Île-de-France</region><settlement type="city">Paris</settlement></placeName></affiliation><affiliation wicri:level="3"><inist:fA14 i1="02"><s1>Chaire de paléoanthropologie et de préhistoire, Collège de France</s1><s2>75005 Paris</s2><s3>FRA</s3><sZ>1 aut.</sZ></inist:fA14><country>France</country><placeName><region type="region" nuts="2">Île-de-France</region><settlement type="city">Paris</settlement></placeName></affiliation></author><author><name sortKey="Morales, J" sort="Morales, J" uniqKey="Morales J" first="J." last="Morales">J. Morales</name><affiliation wicri:level="2"><inist:fA14 i1="03"><s1>Departamento de Paleobiologia, Museo Nacional de Ciencias Naturales, J.-Gutierrez-Abascal 2</s1><s2>28006 Madrid</s2><s3>ESP</s3><sZ>2 aut.</sZ></inist:fA14><country>Espagne</country><placeName><region nuts="2" type="communauté">Communauté de Madrid</region></placeName></affiliation></author></analytic><series><title level="j" type="main">Comptes rendus de l'Académie des sciences. Série II. Sciences de la terre et des planètes</title><title level="j" type="abbreviated">C. r. Acad. sci., Sér. II Sci. terre planet.</title><idno type="ISSN">1251-8050</idno><imprint><date when="1998">1998</date></imprint></series></biblStruct></sourceDesc><seriesStmt><title level="j" type="main">Comptes rendus de l'Académie des sciences. Série II. Sciences de la terre et des planètes</title><title level="j" type="abbreviated">C. r. Acad. sci., Sér. II Sci. terre planet.</title><idno type="ISSN">1251-8050</idno></seriesStmt></fileDesc><profileDesc><textClass><keywords scheme="KwdEn" xml:lang="en"><term>Spain</term><term>Tubulidentata</term><term>lower Miocene</term><term>microstructures</term><term>morphology</term><term>new taxa</term><term>phylogeny</term><term>teeth</term></keywords><keywords scheme="Pascal" xml:lang="fr"><term>Tubulidentata</term><term>Miocène inf</term><term>Espagne</term><term>Dent</term><term>Microstructure</term><term>Morphologie</term><term>Phylogénie</term><term>Taxon nouveau</term><term>Tayassuidae</term><term>Suiformes</term><term>Hypsorhizie</term><term>Tubulidentie</term><term>Lorancahyus daamsi</term><term>Anatomie fonctionnelle</term></keywords><keywords scheme="Wicri" type="geographic" xml:lang="fr"><term>Espagne</term></keywords></textClass></profileDesc></teiHeader><front><div type="abstract" xml:lang="en">Small suiform artiodactyls from Moheda, Loranca and Corcolés, Spain, possess tubulidentate microstructure in their cheek tooth roots. The oldest specimens from Moheda (MN 2a) have a few scattered tubules near the apices of the molar roots, those from Loranca (MN 2b) have numerous tubules of various diameters in contact with each other, but oriented at various angles, while specimens from Corcolés (MN 4) are completely tubulidentate with well developed, sub-parallel tubules of sub-equal diameter running the entire length of the roots. The same series of fossils shows that with the passage of geological time the roots of this tayassuid lineage became more hypsorhizic and fusion of the roots increased, while the crowns of the teeth became simpler and thinner enamelled. Selection in this lineage was therefore focused upon increasing the longevity and wear resistance of the roots, while the role of the crowns of the teeth in mastication was de-emphasised. It is hypothesised that, as in Tubulidentata and Edentata, this suiform lineage was ingesting food items which contained significant quantities of adherant earth. Whether the diet also contained ants and termites is not known.</div></front></TEI><affiliations><list><country><li>Espagne</li><li>France</li></country><region><li>Communauté de Madrid</li><li>Île-de-France</li></region><settlement><li>Paris</li></settlement></list><tree><country name="France"><region name="Île-de-France"><name sortKey="Pickford, M" sort="Pickford, M" uniqKey="Pickford M" first="M." last="Pickford">M. Pickford</name></region><name sortKey="Pickford, M" sort="Pickford, M" uniqKey="Pickford M" first="M." last="Pickford">M. Pickford</name></country><country name="Espagne"><region name="Communauté de Madrid"><name sortKey="Morales, J" sort="Morales, J" uniqKey="Morales J" first="J." last="Morales">J. Morales</name></region></country></tree></affiliations></record>Pour manipuler ce document sous Unix (Dilib)
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