A primitive anomodont therapsid from the base of the Beaufort Group (Upper Permian) of South Africa
Identifieur interne : 004C01 ( Istex/Checkpoint ); précédent : 004C00; suivant : 004C02A primitive anomodont therapsid from the base of the Beaufort Group (Upper Permian) of South Africa
Auteurs : Bruce S. Rubidge [Afrique du Sud] ; James A. Hopson [États-Unis]Source :
- Zoological Journal of the Linnean Society [ 0024-4082 ] ; 1996.
English descriptors
- KwdEn :
- African anomodont, African museum, Anomodont, Anomodontia, Anomodonts, Anterior, Anterior border, Anterior ends, Anterior part, Anteriorly, Articular, Articular surface, Articulation, Beaufort, Beaufort group, Brinkman, Carpal, Centrale, Centrum, Cervical, Cervical centra, Cervical vertebrae, Condyle, Coronoid, Dentary, Dicynodont, Distal carpal, Distal carpals, Dorsal, Dorsal vertebrae, Dorsal view, Eodicynodon, External naris, Femur, Fenestra, Fenestra ovalis, Foramen, Galechirus, Galeops, Galeops whaitsi, Galepus, Geological society, Hopson, Hopson figure, Ilium, Jugal, Karoo, Last tooth, Lateral, Lateral centrale, Lateral margin, Lateral surface, Lateral view, Laterally, Linnean society, Mandibular fenestra, Maxilla, Medial, Medial border, Medial centrale, Medial condyle, Medial surface, Metacarpal, Musculature, Neural spines, Nmqr, Nodule, Nyaphulii, Occipital condyle, Other anomodonts, Palatine, Parietal, Patranomodon, Patranomodon nyaphulii, Permian, Port elizabeth, Postcranial, Postcranial elements, Postcranial skeleton, Posterior half, Posterior part, Posteriorly, Postfrontal, Postorbital, Posttemporal foramen, Premaxilla, Primitive anomodont therapsid, Primitive anomodonts, Pterygoid, Quadrate, Quadrate ramus, Ramus, Rib, Right side, Rubidge, Rubidge hopson, Sacral, Sacral articulation, Sacral vertebrae, Short contact, Skull, Skull roof, Squamosal, Stapes, Tabular, Temporal fenestra, Therapsid, Therapsida, Upper Permian, Ventral, Ventral border, Ventral surfaces, Ventral view, Vertebra, Zoological society, Zygomatic arch.
- Teeft :
- African anomodont, African museum, Anomodont, Anomodonts, Anterior, Anterior border, Anterior ends, Anterior part, Anteriorly, Articular, Articular surface, Articulation, Beaufort, Beaufort group, Brinkman, Carpal, Centrale, Centrum, Cervical, Cervical centra, Cervical vertebrae, Condyle, Coronoid, Dentary, Dicynodont, Distal carpal, Distal carpals, Dorsal, Dorsal vertebrae, Dorsal view, Eodicynodon, External naris, Femur, Fenestra, Fenestra ovalis, Foramen, Galechirus, Galeops, Galeops whaitsi, Galepus, Geological society, Hopson, Hopson figure, Ilium, Jugal, Karoo, Last tooth, Lateral, Lateral centrale, Lateral margin, Lateral surface, Lateral view, Laterally, Linnean society, Mandibular fenestra, Maxilla, Medial, Medial border, Medial centrale, Medial condyle, Medial surface, Metacarpal, Musculature, Neural spines, Nmqr, Nodule, Nyaphulii, Occipital condyle, Other anomodonts, Palatine, Parietal, Patranomodon, Patranomodon nyaphulii, Permian, Port elizabeth, Postcranial, Postcranial elements, Postcranial skeleton, Posterior half, Posterior part, Posteriorly, Postfrontal, Postorbital, Posttemporal foramen, Premaxilla, Primitive anomodont therapsid, Primitive anomodonts, Pterygoid, Quadrate, Quadrate ramus, Ramus, Rib, Right side, Rubidge, Rubidge hopson, Sacral, Sacral articulation, Sacral vertebrae, Short contact, Skull, Skull roof, Squamosal, Stapes, Tabular, Temporal fenestra, Therapsid, Ventral, Ventral border, Ventral surfaces, Ventral view, Vertebra, Zoological society, Zygomatic arch.
Abstract
Abstract: Patranomodon nyaphulii, known from a nearly complete skull, lower jaw and partial postcranial skeleton, is morphologically the most primitive anomodont therapsid yet discovered. It is from theEodicynodonAssemblage Zone, the lowest biozone of the Beaufort Group of South Africa, which has a primitive therapsid fauna comparable with that of the Russian Zone I.Patranaomodonis primitive with respect to other anomodonts in having short palatal exposure of the premaxilla, an unreduced tabular, a slit-like interpterygoidal vacuity, a screw-shaped jaw articulation (which precludes fore-aft sliding of the lower jaw), and only three sacral vertebrae. The poorly-knownGalechirusandGalepusfrom the youngerCistecephalusAssemblage Zone appear to be at a comparably primitive evolutionary grade, and the three genera are tentatively united in the family Galechiridae. The taxon Dromasauria is shown to be paraphyletic and therefore should be discarded.
Url:
DOI: 10.1006/zjls.1996.0033
Affiliations:
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ISTEX:0EC3DF88FFB0B3534E751317F1D477FDD134193BLe document en format XML
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<author><name sortKey="Rubidge, Bruce S" sort="Rubidge, Bruce S" uniqKey="Rubidge B" first="Bruce S." last="Rubidge">Bruce S. Rubidge</name>
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<sourceDesc><biblStruct><analytic><title level="a" type="main" xml:lang="en">A primitive anomodont therapsid from the base of the Beaufort Group (Upper Permian) of South Africa</title>
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<wicri:regionArea>Bernard Price Institute for Palaeontological Research, University of the Witwatersrand, Private Bag 3, P.O. Wits, 2050</wicri:regionArea>
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<author><name sortKey="Hopson, James A" sort="Hopson, James A" uniqKey="Hopson J" first="James A." last="Hopson">James A. Hopson</name>
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<wicri:regionArea>Department of Organismal Biology and Anatomy, University of Chicago, 1025 East 57th Street, Chicago, IL, 60637</wicri:regionArea>
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<term>African museum</term>
<term>Anomodont</term>
<term>Anomodontia</term>
<term>Anomodonts</term>
<term>Anterior</term>
<term>Anterior border</term>
<term>Anterior ends</term>
<term>Anterior part</term>
<term>Anteriorly</term>
<term>Articular</term>
<term>Articular surface</term>
<term>Articulation</term>
<term>Beaufort</term>
<term>Beaufort group</term>
<term>Brinkman</term>
<term>Carpal</term>
<term>Centrale</term>
<term>Centrum</term>
<term>Cervical</term>
<term>Cervical centra</term>
<term>Cervical vertebrae</term>
<term>Condyle</term>
<term>Coronoid</term>
<term>Dentary</term>
<term>Dicynodont</term>
<term>Distal carpal</term>
<term>Distal carpals</term>
<term>Dorsal</term>
<term>Dorsal vertebrae</term>
<term>Dorsal view</term>
<term>Eodicynodon</term>
<term>External naris</term>
<term>Femur</term>
<term>Fenestra</term>
<term>Fenestra ovalis</term>
<term>Foramen</term>
<term>Galechirus</term>
<term>Galeops</term>
<term>Galeops whaitsi</term>
<term>Galepus</term>
<term>Geological society</term>
<term>Hopson</term>
<term>Hopson figure</term>
<term>Ilium</term>
<term>Jugal</term>
<term>Karoo</term>
<term>Last tooth</term>
<term>Lateral</term>
<term>Lateral centrale</term>
<term>Lateral margin</term>
<term>Lateral surface</term>
<term>Lateral view</term>
<term>Laterally</term>
<term>Linnean society</term>
<term>Mandibular fenestra</term>
<term>Maxilla</term>
<term>Medial</term>
<term>Medial border</term>
<term>Medial centrale</term>
<term>Medial condyle</term>
<term>Medial surface</term>
<term>Metacarpal</term>
<term>Musculature</term>
<term>Neural spines</term>
<term>Nmqr</term>
<term>Nodule</term>
<term>Nyaphulii</term>
<term>Occipital condyle</term>
<term>Other anomodonts</term>
<term>Palatine</term>
<term>Parietal</term>
<term>Patranomodon</term>
<term>Patranomodon nyaphulii</term>
<term>Permian</term>
<term>Port elizabeth</term>
<term>Postcranial</term>
<term>Postcranial elements</term>
<term>Postcranial skeleton</term>
<term>Posterior half</term>
<term>Posterior part</term>
<term>Posteriorly</term>
<term>Postfrontal</term>
<term>Postorbital</term>
<term>Posttemporal foramen</term>
<term>Premaxilla</term>
<term>Primitive anomodont therapsid</term>
<term>Primitive anomodonts</term>
<term>Pterygoid</term>
<term>Quadrate</term>
<term>Quadrate ramus</term>
<term>Ramus</term>
<term>Rib</term>
<term>Right side</term>
<term>Rubidge</term>
<term>Rubidge hopson</term>
<term>Sacral</term>
<term>Sacral articulation</term>
<term>Sacral vertebrae</term>
<term>Short contact</term>
<term>Skull</term>
<term>Skull roof</term>
<term>Squamosal</term>
<term>Stapes</term>
<term>Tabular</term>
<term>Temporal fenestra</term>
<term>Therapsid</term>
<term>Therapsida</term>
<term>Upper Permian</term>
<term>Ventral</term>
<term>Ventral border</term>
<term>Ventral surfaces</term>
<term>Ventral view</term>
<term>Vertebra</term>
<term>Zoological society</term>
<term>Zygomatic arch</term>
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<keywords scheme="Teeft" xml:lang="en"><term>African anomodont</term>
<term>African museum</term>
<term>Anomodont</term>
<term>Anomodonts</term>
<term>Anterior</term>
<term>Anterior border</term>
<term>Anterior ends</term>
<term>Anterior part</term>
<term>Anteriorly</term>
<term>Articular</term>
<term>Articular surface</term>
<term>Articulation</term>
<term>Beaufort</term>
<term>Beaufort group</term>
<term>Brinkman</term>
<term>Carpal</term>
<term>Centrale</term>
<term>Centrum</term>
<term>Cervical</term>
<term>Cervical centra</term>
<term>Cervical vertebrae</term>
<term>Condyle</term>
<term>Coronoid</term>
<term>Dentary</term>
<term>Dicynodont</term>
<term>Distal carpal</term>
<term>Distal carpals</term>
<term>Dorsal</term>
<term>Dorsal vertebrae</term>
<term>Dorsal view</term>
<term>Eodicynodon</term>
<term>External naris</term>
<term>Femur</term>
<term>Fenestra</term>
<term>Fenestra ovalis</term>
<term>Foramen</term>
<term>Galechirus</term>
<term>Galeops</term>
<term>Galeops whaitsi</term>
<term>Galepus</term>
<term>Geological society</term>
<term>Hopson</term>
<term>Hopson figure</term>
<term>Ilium</term>
<term>Jugal</term>
<term>Karoo</term>
<term>Last tooth</term>
<term>Lateral</term>
<term>Lateral centrale</term>
<term>Lateral margin</term>
<term>Lateral surface</term>
<term>Lateral view</term>
<term>Laterally</term>
<term>Linnean society</term>
<term>Mandibular fenestra</term>
<term>Maxilla</term>
<term>Medial</term>
<term>Medial border</term>
<term>Medial centrale</term>
<term>Medial condyle</term>
<term>Medial surface</term>
<term>Metacarpal</term>
<term>Musculature</term>
<term>Neural spines</term>
<term>Nmqr</term>
<term>Nodule</term>
<term>Nyaphulii</term>
<term>Occipital condyle</term>
<term>Other anomodonts</term>
<term>Palatine</term>
<term>Parietal</term>
<term>Patranomodon</term>
<term>Patranomodon nyaphulii</term>
<term>Permian</term>
<term>Port elizabeth</term>
<term>Postcranial</term>
<term>Postcranial elements</term>
<term>Postcranial skeleton</term>
<term>Posterior half</term>
<term>Posterior part</term>
<term>Posteriorly</term>
<term>Postfrontal</term>
<term>Postorbital</term>
<term>Posttemporal foramen</term>
<term>Premaxilla</term>
<term>Primitive anomodont therapsid</term>
<term>Primitive anomodonts</term>
<term>Pterygoid</term>
<term>Quadrate</term>
<term>Quadrate ramus</term>
<term>Ramus</term>
<term>Rib</term>
<term>Right side</term>
<term>Rubidge</term>
<term>Rubidge hopson</term>
<term>Sacral</term>
<term>Sacral articulation</term>
<term>Sacral vertebrae</term>
<term>Short contact</term>
<term>Skull</term>
<term>Skull roof</term>
<term>Squamosal</term>
<term>Stapes</term>
<term>Tabular</term>
<term>Temporal fenestra</term>
<term>Therapsid</term>
<term>Ventral</term>
<term>Ventral border</term>
<term>Ventral surfaces</term>
<term>Ventral view</term>
<term>Vertebra</term>
<term>Zoological society</term>
<term>Zygomatic arch</term>
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<front><div type="abstract" xml:lang="en">Abstract: Patranomodon nyaphulii, known from a nearly complete skull, lower jaw and partial postcranial skeleton, is morphologically the most primitive anomodont therapsid yet discovered. It is from theEodicynodonAssemblage Zone, the lowest biozone of the Beaufort Group of South Africa, which has a primitive therapsid fauna comparable with that of the Russian Zone I.Patranaomodonis primitive with respect to other anomodonts in having short palatal exposure of the premaxilla, an unreduced tabular, a slit-like interpterygoidal vacuity, a screw-shaped jaw articulation (which precludes fore-aft sliding of the lower jaw), and only three sacral vertebrae. The poorly-knownGalechirusandGalepusfrom the youngerCistecephalusAssemblage Zone appear to be at a comparably primitive evolutionary grade, and the three genera are tentatively united in the family Galechiridae. The taxon Dromasauria is shown to be paraphyletic and therefore should be discarded.</div>
</front>
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<affiliations><list><country><li>Afrique du Sud</li>
<li>États-Unis</li>
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<orgName><li>Université du Witwatersrand</li>
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<tree><country name="Afrique du Sud"><region name="Gauteng"><name sortKey="Rubidge, Bruce S" sort="Rubidge, Bruce S" uniqKey="Rubidge B" first="Bruce S." last="Rubidge">Bruce S. Rubidge</name>
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