Results 151 to 160 of about 1,118 (184)
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Dicynodonts (Therapsida: Anomodontia) of South America
Journal of South American Earth Sciences, 2021Abstract The dicynodont fauna of South America is comprehensively reviewed. Permian South American dicynodont body fossils are known only from the Rio do Rasto Formation of southern Brazil, and include a specifically uncertain representative of the trans-Gondwanan genus Endothiodon and the endemic Rastodon procurvidens.
Christian F. Kammerer +1 more
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Papers in Palaeontology, 2021
AbstractWe investigate the bone histology of multiple skeletal elements of dinocephalian taxa from the middle PermianTapinocephalusAssemblage Zone of the Karoo Basin of South Africa. The results show that the cortex is predominantly composed of fibrolamellar bone, suggesting rapid osteogenesis for these basal non‐mammalian therapsids. However, in a few
Mohd Shafi Bhat +2 more
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AbstractWe investigate the bone histology of multiple skeletal elements of dinocephalian taxa from the middle PermianTapinocephalusAssemblage Zone of the Karoo Basin of South Africa. The results show that the cortex is predominantly composed of fibrolamellar bone, suggesting rapid osteogenesis for these basal non‐mammalian therapsids. However, in a few
Mohd Shafi Bhat +2 more
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A new Late Triassic traversodontid cynodont (Therapsida, Eucynodontia) from India
Journal of Vertebrate Paleontology, 2015ABSTRACT—A large traversodontid cynodont Ruberodon roychowdhurii, gen et. sp. nov., is described from the Late Triassic Tiki Formation of the Rewa Gondwana Basin, India, based on an ontogenetic series of five partial lower jaws. Ruberodon is characterized by a robust and deep dentary symphysis, lower dental formula of i3-c1-pc9, procumbent and ...
Sanghamitra Ray
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The dentitions of the Tritheledontidae (Therapsida: Cynodontia)
Proceedings of the Royal Society of London. Series B. Biological Sciences, 1980Three previously described monospecific genera of ictidosaurians (Tritheledontidae) are recognized on the basis of their postcanine dentitions. The least specialized is Pachygenelus monus , Watson (1913), the complete dentition of which is described for the first time: five specimens are described and referred to ...
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Essai de phylogénie des cynodontes (reptilia, therapsida)
Geobios, 1982Resume Les principaux caracteres crâniens et dentaires des diverses familles de Cynodontes sont brievement presentes. L'analyse de ces caracteres conduit a la reconnaissance de synapomorphies a partir desquelles une phylogenie du groupe est construite.
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Journal of Paleontology, 2003
The anatomy of the external naris and anterior palate is described in detail for Lycaenodon longiceps, a morphologically conservative member of the primitive therapsid clade Biarmosuchia. Therapsids are distinguished from pelycosaur-grade synapsids by numerous features of the naris and palate. As in most early therapsids, the septomaxilla in Lycaenodon
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The anatomy of the external naris and anterior palate is described in detail for Lycaenodon longiceps, a morphologically conservative member of the primitive therapsid clade Biarmosuchia. Therapsids are distinguished from pelycosaur-grade synapsids by numerous features of the naris and palate. As in most early therapsids, the septomaxilla in Lycaenodon
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Further studies on cynodont endocasts (Reptilia--Therapsida).
Zeitschrift fur mikroskopisch-anatomische Forschung, 1981Endocranial casts of the cynodonts Andescynodon mendozensis, Probelesoden sp., Massetognathus pascualis and M. teruggii are studied qualitatively and quantitatively. The former two show large and flat olfactory bulbs, little or no representation of the olfactory peduncles, long and narrow cerebral region and laterally protruding flocculus at the ...
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Osteomyelitis in a 265-million-year-old titanosuchid (Dinocephalia, Therapsida)
Historical Biology, 2017AbstractAnalytical palaeohistology techniques have allowed a better understanding of the microstructure of fossil bone, as well as of bone pathologies of extinct animals. Osteomyelitis is one of the oldest identified bone pathologies, occurring in Synapsida dating back as far as the Lower Permian.
Christen D. Shelton +2 more
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Evolution of postcanine complexity in
AbstractGomphodonts form a Triassic radiation of small to medium‐bodied (<0.5–2.5 m in length) quadrupedal cynodonts characterized by labiolingually expanded gomphodont postcanines. They were the dominant cynodont group in Middle and Late Triassic ecosystems from the Southern Hemisphere and the first predominantly herbivorous cynodonts to evolve ...
Christophe Hendrickx +5 more
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A review of fighting adaptations in dinocephalians (Reptilia, Therapsida)
Paleobiology, 1975The cranial structure of anteosaurid and many tapinocephalid dinocephalians became modified in a manner consistent with Geist's hypothesis that they used their heads for pushing and ramming during intraspecific combat. These modifications are most pronounced in certain tapinocephalids by the evolution of a strong dorsal head shield supported by a ...
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