Thereuodon (Theria, Symmetrodonta) from the Lower Cretaceous of North Africa and Europe, and a brief review of symmetrodonts
Identifieur interne : 000386 ( France/Analysis ); précédent : 000385; suivant : 000387Thereuodon (Theria, Symmetrodonta) from the Lower Cretaceous of North Africa and Europe, and a brief review of symmetrodonts
Auteurs : D. Sigogneau-Russell [France] ; P. Ensom [Royaume-Uni]Source :
- Cretaceous Research [ 0195-6671 ] ; 1998.
Descripteurs français
- Wicri :
- geographic : Maroc.
- topic : Angleterre.
English descriptors
- KwdEn :
- Abbreviation, Academic press, American journal, American museum novitates, Anterior face, Anterior view, Anteriorly, Archaeological society, Argentina., Barberenia, Bonaparte, British museum, Cifelli, Cingulum, Comptes rendus, Cretace inferieur, Cretaceous, Crompton, Cusp, Cuspule, Dahmani, Dental formula, Dorcm, Early cretaceous, England, Ensom, Ensom figure, Eurylambda, Facet, Fauna, Genus, Genus thereuodon, Geological society, Holotype mnhn, Jurassic, Jurassic mammals, Kermack, Kuehneotherium, Labial, Labial cingulum, Labial symm, Labial view, Labially, Langton matravers, Late jurassic, Limestone, Lingual, Lingual cingulum, Lingual view, Linnean, Linnean society, Lower Cretaceous, Lower cretaceous, Lower jurassic kota formation, Lower molar, Lower molars, Mammal, Mammalia, Mediocrista, Metacone, Metaconid, Metastyle, Molar, Morocco, Morrison formation, Natural history, Occlusal, Occlusal view, Paleontology, Paracone, Paraconid, Parastylar, Parastylar area, Parastylar lobe, Parastyle, Peralestes, Posterior face, Posterior view, Prasad manhas, Preparacrista, Prothero, Purbeck, Purbeck Limestone Group, Purbeck fauna, Purbeck limestone formation, Purbeck limestone group, Second species, Southern england, Spalacotheriidae, Spalacotherium, Stylocone, Subequal, Sunnydown farm, Symm, Symmetrodont, Symmetrodonta, Symmetrodontoides, Symmetrodonts, Taraktes, Taxon, Tethys, Thereuodon, Thereuodon dahmani, Thereuodon taraktes, Theria, Therian, Therians, Tinodon, Tinodontids, Transverse shear, Trigon, Trigon angle, Trigon basin, Type species, Upper cretaceous, Upper jurassic, Upper molar, Upper molars, Vertebrate, Vertebrate paleontology, Woutersia, Zoological, Zoological journal.
- Teeft :
- Abbreviation, Academic press, American journal, American museum novitates, Anterior face, Anterior view, Anteriorly, Archaeological society, Barberenia, Bonaparte, British museum, Cifelli, Cingulum, Comptes rendus, Cretace inferieur, Cretaceous, Crompton, Cusp, Cuspule, Dahmani, Dental formula, Dorcm, Early cretaceous, Ensom, Ensom figure, Eurylambda, Facet, Fauna, Genus, Genus thereuodon, Geological society, Holotype mnhn, Jurassic, Jurassic mammals, Kermack, Kuehneotherium, Labial, Labial cingulum, Labial symm, Labial view, Labially, Langton matravers, Late jurassic, Limestone, Lingual, Lingual cingulum, Lingual view, Linnean, Linnean society, Lower cretaceous, Lower jurassic kota formation, Lower molar, Lower molars, Mammal, Mammalia, Mediocrista, Metacone, Metaconid, Metastyle, Molar, Morrison formation, Natural history, Occlusal, Occlusal view, Paleontology, Paracone, Paraconid, Parastylar, Parastylar area, Parastylar lobe, Parastyle, Peralestes, Posterior face, Posterior view, Prasad manhas, Preparacrista, Prothero, Purbeck, Purbeck fauna, Purbeck limestone formation, Purbeck limestone group, Second species, Southern england, Spalacotheriidae, Spalacotherium, Stylocone, Subequal, Sunnydown farm, Symm, Symmetrodont, Symmetrodonta, Symmetrodontoides, Symmetrodonts, Taraktes, Taxon, Thereuodon, Thereuodon dahmani, Thereuodon taraktes, Theria, Therian, Therians, Tinodon, Tinodontids, Transverse shear, Trigon, Trigon angle, Trigon basin, Type species, Upper cretaceous, Upper jurassic, Upper molar, Upper molars, Vertebrate, Vertebrate paleontology, Woutersia, Zoological, Zoological journal.
Abstract
Abstract: Until now the Symmetrodonta were known in the Purbeck fauna of southern England by only one genus,Spalacotherium-Peralestes. Five isolated teeth found during recent work in this formation reveal the presence of another taxon, close to one previously described from the Early Cretaceous fauna of Morocco,Thereuodon dahmani(which is considered here as representing a new family, the Thereuodontidae); the Purbeck form is described asT. taraktessp. nov. A brief historical review of all genera and species of symmetrodonts is given, followed by a presentation of the distribution of 25 dental characters in these taxa. The similarities noted betweenThereuodonand a Campanian therian from Argentina,Barberenia, could suggest either a common ancestry before the isolation of that part of South America or, more likely, a case of parallelism. Finally, a new interpretation of the wear facets on molars of Symmetrodonta is presented; this leads us to question the homology between those of early therians and of tribosphenic therians, and underlines the early individualization of the latter.
Url:
DOI: 10.1006/cres.1998.0115
Affiliations:
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ISTEX:23EC7959B106782877117D6305A0564079CC4FE6Le document en format XML
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jurassic</term><term>Limestone</term><term>Lingual</term><term>Lingual cingulum</term><term>Lingual view</term><term>Linnean</term><term>Linnean society</term><term>Lower Cretaceous</term><term>Lower cretaceous</term><term>Lower jurassic kota formation</term><term>Lower molar</term><term>Lower molars</term><term>Mammal</term><term>Mammalia</term><term>Mediocrista</term><term>Metacone</term><term>Metaconid</term><term>Metastyle</term><term>Molar</term><term>Morocco</term><term>Morrison formation</term><term>Natural history</term><term>Occlusal</term><term>Occlusal view</term><term>Paleontology</term><term>Paracone</term><term>Paraconid</term><term>Parastylar</term><term>Parastylar area</term><term>Parastylar lobe</term><term>Parastyle</term><term>Peralestes</term><term>Posterior face</term><term>Posterior view</term><term>Prasad manhas</term><term>Preparacrista</term><term>Prothero</term><term>Purbeck</term><term>Purbeck Limestone Group</term><term>Purbeck fauna</term><term>Purbeck limestone formation</term><term>Purbeck limestone group</term><term>Second species</term><term>Southern england</term><term>Spalacotheriidae</term><term>Spalacotherium</term><term>Stylocone</term><term>Subequal</term><term>Sunnydown farm</term><term>Symm</term><term>Symmetrodont</term><term>Symmetrodonta</term><term>Symmetrodontoides</term><term>Symmetrodonts</term><term>Taraktes</term><term>Taxon</term><term>Tethys</term><term>Thereuodon</term><term>Thereuodon dahmani</term><term>Thereuodon taraktes</term><term>Theria</term><term>Therian</term><term>Therians</term><term>Tinodon</term><term>Tinodontids</term><term>Transverse shear</term><term>Trigon</term><term>Trigon angle</term><term>Trigon basin</term><term>Type species</term><term>Upper cretaceous</term><term>Upper jurassic</term><term>Upper molar</term><term>Upper molars</term><term>Vertebrate</term><term>Vertebrate paleontology</term><term>Woutersia</term><term>Zoological</term><term>Zoological journal</term></keywords><keywords scheme="Teeft" xml:lang="en"><term>Abbreviation</term><term>Academic press</term><term>American journal</term><term>American museum novitates</term><term>Anterior face</term><term>Anterior view</term><term>Anteriorly</term><term>Archaeological society</term><term>Barberenia</term><term>Bonaparte</term><term>British museum</term><term>Cifelli</term><term>Cingulum</term><term>Comptes rendus</term><term>Cretace inferieur</term><term>Cretaceous</term><term>Crompton</term><term>Cusp</term><term>Cuspule</term><term>Dahmani</term><term>Dental formula</term><term>Dorcm</term><term>Early cretaceous</term><term>Ensom</term><term>Ensom figure</term><term>Eurylambda</term><term>Facet</term><term>Fauna</term><term>Genus</term><term>Genus thereuodon</term><term>Geological society</term><term>Holotype mnhn</term><term>Jurassic</term><term>Jurassic mammals</term><term>Kermack</term><term>Kuehneotherium</term><term>Labial</term><term>Labial cingulum</term><term>Labial symm</term><term>Labial view</term><term>Labially</term><term>Langton matravers</term><term>Late jurassic</term><term>Limestone</term><term>Lingual</term><term>Lingual cingulum</term><term>Lingual view</term><term>Linnean</term><term>Linnean society</term><term>Lower cretaceous</term><term>Lower jurassic kota formation</term><term>Lower molar</term><term>Lower molars</term><term>Mammal</term><term>Mammalia</term><term>Mediocrista</term><term>Metacone</term><term>Metaconid</term><term>Metastyle</term><term>Molar</term><term>Morrison formation</term><term>Natural history</term><term>Occlusal</term><term>Occlusal view</term><term>Paleontology</term><term>Paracone</term><term>Paraconid</term><term>Parastylar</term><term>Parastylar area</term><term>Parastylar lobe</term><term>Parastyle</term><term>Peralestes</term><term>Posterior face</term><term>Posterior view</term><term>Prasad manhas</term><term>Preparacrista</term><term>Prothero</term><term>Purbeck</term><term>Purbeck fauna</term><term>Purbeck limestone formation</term><term>Purbeck limestone group</term><term>Second species</term><term>Southern england</term><term>Spalacotheriidae</term><term>Spalacotherium</term><term>Stylocone</term><term>Subequal</term><term>Sunnydown farm</term><term>Symm</term><term>Symmetrodont</term><term>Symmetrodonta</term><term>Symmetrodontoides</term><term>Symmetrodonts</term><term>Taraktes</term><term>Taxon</term><term>Thereuodon</term><term>Thereuodon dahmani</term><term>Thereuodon taraktes</term><term>Theria</term><term>Therian</term><term>Therians</term><term>Tinodon</term><term>Tinodontids</term><term>Transverse shear</term><term>Trigon</term><term>Trigon angle</term><term>Trigon basin</term><term>Type species</term><term>Upper cretaceous</term><term>Upper jurassic</term><term>Upper molar</term><term>Upper molars</term><term>Vertebrate</term><term>Vertebrate paleontology</term><term>Woutersia</term><term>Zoological</term><term>Zoological journal</term></keywords><keywords scheme="Wicri" type="geographic" xml:lang="fr"><term>Maroc</term></keywords><keywords scheme="Wicri" type="topic" xml:lang="fr"><term>Angleterre</term></keywords></textClass><langUsage><language ident="en">en</language></langUsage></profileDesc></teiHeader><front><div type="abstract" xml:lang="en">Abstract: Until now the Symmetrodonta were known in the Purbeck fauna of southern England by only one genus,Spalacotherium-Peralestes. Five isolated teeth found during recent work in this formation reveal the presence of another taxon, close to one previously described from the Early Cretaceous fauna of Morocco,Thereuodon dahmani(which is considered here as representing a new family, the Thereuodontidae); the Purbeck form is described asT. taraktessp. nov. A brief historical review of all genera and species of symmetrodonts is given, followed by a presentation of the distribution of 25 dental characters in these taxa. The similarities noted betweenThereuodonand a Campanian therian from Argentina,Barberenia, could suggest either a common ancestry before the isolation of that part of South America or, more likely, a case of parallelism. Finally, a new interpretation of the wear facets on molars of Symmetrodonta is presented; this leads us to question the homology between those of early therians and of tribosphenic therians, and underlines the early individualization of the latter.</div></front></TEI><affiliations><list><country><li>France</li><li>Royaume-Uni</li></country><region><li>Île-de-France</li></region><settlement><li>Paris</li></settlement></list><tree><country name="France"><region name="Île-de-France"><name sortKey="Sigogneau Russell, D" sort="Sigogneau Russell, D" uniqKey="Sigogneau Russell D" first="D." last="Sigogneau-Russell">D. Sigogneau-Russell</name></region></country><country name="Royaume-Uni"><noRegion><name sortKey="Ensom, P" sort="Ensom, P" uniqKey="Ensom P" first="P." last="Ensom">P. Ensom</name></noRegion></country></tree></affiliations></record>Pour manipuler ce document sous Unix (Dilib)
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