Results 11 to 20 of about 1,118 (184)

Evidências de Anomalias Ósseas em Stahleckeria potens Huene, 1935 (Therapsida, Anomodontia). [PDF]

open access: yesAnuário do Instituto de Geociências, 2007
Os dicinodontes representam um grupo de tetrápodes herbívoros amplamente registrado em rochas sedimentares do Permiano Superior eTriássico. Uma das espécies mais instigantes é Stahleckeria potens Huene 1935, uma forma de porte avantajado cujos fósseis ...
Cibele Schwanke, Diogo Jorge de Melo
doaj   +5 more sources

Masticatory jaw movement of Exaeretodon argentinus (Therapsida: Cynodontia) inferred from its dental microwear. [PDF]

open access: yesPLoS ONE, 2017
Dental microwear of four postcanine teeth of Exaeretodon argentinus was analyzed using both two dimensional (2D) and three dimensional (3D) methods to infer their masticatory jaw movements.
Tai Kubo, Eisuke Yamada, Mugino O Kubo
doaj   +5 more sources

Synchrotron scanning reveals the palaeoneurology of the head-butting Moschops capensis (Therapsida, Dinocephalia) [PDF]

open access: yesPeerJ, 2017
Dinocephalian therapsids are renowned for their massive, pachyostotic and ornamented skulls adapted for head-to-head fighting during intraspecific combat.
Julien Benoit   +4 more
doaj   +6 more sources

Systematics of the Rubidgeinae (Therapsida: Gorgonopsia) [PDF]

open access: yesPeerJ, 2016
The subfamily Rubidgeinae, containing the largest known African gorgonopsians, is thoroughly revised. Rubidgeinae is diagnosed by the absence of a blade-like parasphenoid rostrum and reduction or absence of the preparietal.
Christian F. Kammerer
doaj   +5 more sources

Growth increments in teeth of Diictodon (Therapsida)

open access: yesKoedoe: African Protected Area Conservation and Science, 1991
Growth increments circa 0.02 mm in width have been observed in sectioned tusks of Diictodon from the Late Permian lower Beaufort succession of the South African Karoo, dated between about 260 and 245 million years ago.
J. Francis Thackeray
doaj   +2 more sources

Reappraisal of the envenoming capacity of Euchambersia mirabilis (Therapsida, Therocephalia) using μCT-scanning techniques. [PDF]

open access: yesPLoS ONE, 2017
Euchambersia mirabilis is an iconic species of Permo-Triassic therapsid because of its unusually large external maxillary fossa linked through a sulcus to a ridged canine.
Julien Benoit   +3 more
doaj   +2 more sources

Cranial Bosses of Choerosaurus dejageri (Therapsida, Therocephalia): Earliest Evidence of Cranial Display Structures in Eutheriodonts. [PDF]

open access: yesPLoS ONE, 2016
Choerosaurus dejageri, a non-mammalian eutheriodont therapsid from the South African late Permian (~259 Ma), has conspicuous hemispheric cranial bosses on the maxilla and the mandible.
Julien Benoit   +3 more
doaj   +2 more sources

Rise of dinosaurs reveals major body-size transitions are driven by passive processes of trait evolution. [PDF]

open access: yesProc Biol Sci, 2012
A major macroevolutionary question concerns how long-term patterns of body-size evolution are underpinned by smaller scale processes along lineages.
Sookias RB, Butler RJ, Benson RB.
europepmc   +3 more sources

Bringing dicynodonts back to life: paleobiology and anatomy of a new emydopoid genus from the Upper Permian of Mozambique. [PDF]

open access: yesPLoS ONE, 2013
Dicynodontia represent the most diverse tetrapod group during the Late Permian. They survived the Permo-Triassic extinction and are central to understanding Permo-Triassic terrestrial ecosystems.
Rui Castanhinha   +8 more
doaj   +6 more sources

Revision of the Tanzanian dicynodont Dicynodon huenei (Therapsida: Anomodontia) from the Permian Usili Formation [PDF]

open access: yesPeerJ, 2019
A single species of the dicynodontoid dicynodont Dicynodon is currently recognized from the late Permian Usili Formation of Tanzania: Dicynodon huenei Haughton, 1932. Restudy of the known Tanzanian materials of D.
Christian F. Kammerer
doaj   +3 more sources

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