Results 41 to 50 of about 268 (118)

A new skull of the procynosuchid Cynodont Leavachia duvenhagei Broom [PDF]

open access: yes, 1963
Main articleThis paper describes one of the most excellent, complete, virtually undamaged and undistorted skulls of a Karroo therapsid yet found. It is of exactly the same size as the type specimen of Leavachia duvenhagei Broom, housed in the Rubidge ...
Brink, A. S.
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A new vertebrate biozone at the base of the Beaufort Group, Karoo sequence (South Africa) [PDF]

open access: yes, 1990
A new vertebrate biozone at the base of the Beaufort Group has been identified. This biozone is the oldest vertebrate biozone of the Beaufort Group and contains fossils of various therapsid genera which are more primitive than previously known related ...
Rubidge, Bruce S
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Osteohistological analysis of metatarsals reveals new information on pathology and life history of troodontids from the Campanian Dinosaur Park Formation, Alberta, Canada

open access: yesJournal of Anatomy, Volume 247, Issue 3-4, Page 736-764, September/October 2025.
A histological survey of troodontid metatarsals from the Dinosaur Park Formation (DPF) was conducted, revealing correlates for stresses in the troodontid arctometatarsus and providing the first histological assessment of pathologies for this taxon.
Christiana W. Garros   +3 more
wiley   +1 more source

Biological aspects of the Permian dicynodont Oudenodon (Therapsida: Dicynodontia) deduced from bone histology and cross-sectional geometry [PDF]

open access: yes, 2003
Main articleBone histology and cross-sectional geometry were used to examine the growth patterns and lifestyle habits of the Late Permian dicynodont, Oudenodon.
Botha, Jennifer
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The taxonomic status of Parathrinaxodon proops (Therapsida: Cynodontia), with comments on the morphology of the palate in basal cynodonts [PDF]

open access: yes, 2005
The holotype and only specimen of Parathrinaxodon proops, a cynodont from the Upper Permian Kawinga Formation, Tanzania, is redescribed. Upper postcanines from the middle of the tooth row are ovoid in outline, presenting a large main cusp and tiny ...
Abdala, Fernando, Allinson, Matthew
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The origin and evolution of Cynodontia (Synapsida, Therapsida): Reassessment of the phylogeny and systematics of the earliest members of this clade using 3D‐imaging technologies

open access: yesThe Anatomical Record, Volume 307, Issue 4, Page 1634-1730, April 2024.
Abstract The origin of cynodonts, the group ancestral to and including mammals, is one of the major outstanding problems in therapsid evolution. One of the most troubling aspects of the cynodont fossil record is the lengthy Permian ghost lineage between the latest possible divergence from its sister group Therocephalia and the first appearance of ...
Luisa C. Pusch   +2 more
wiley   +1 more source

A NEW SPECIMEN OF PROMOSCHORHYNCHUS PLATYRHINUS BRINK 1954 (MOSCHORHINIDAE) FROM THE DAPTOCEPHALUS-ZONE (UPPER PERMIAN) OF SOUTH AFRICA [PDF]

open access: yes, 1974
The morphology of the skull of Promoschorhynchus platyrhinus (Moschorhinidae) from the Daptocephalus-zone (Upper Permian) of South Africa) is described with special reference to the palate and posterior part of the skull.
Mendrez, Christiane Helene
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Cranio-osteologlcal studies in Dicynodon grimbeeki with special reference to the sphenethmoid region and cranial kinesis [PDF]

open access: yes, 1959
NoneThe skull structure of Dicynodon grimbeeki has been studied by means of serial sections. It was found that D. grimbeeki is akinetic and that, although several mammal-like characteristics are present, Dicynodon occupies a specialized side-branch of ...
Agnew, John David
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Cranial osteology of Arctognathus curvimola, a short‐snouted gorgonopsian from the Late Permian of South Africa [PDF]

open access: yesPapers in Palaeontology, 2014
AbstractGorgonopsia is one of the major clades of nonmammalian therapsids and includes the dominant vertebrate predators of the Late Permian. Unfortunately, gorgonopsian taxonomy is extremely problematic, due in large part to the lack of thorough descriptions and clear differential diagnoses for most nominal species.
openaire   +1 more source

Proceedings of the 18th Biennial Conference of the Palaeontological Society of Southern Africa Johannesburg, 11–14 July 2014 [PDF]

open access: yes, 2014
Evolutionary Studies Institute the Palaeontological Scientific Trust (PAST) and its Scatterlings of Africa programmes University of the Witwatersrand Department of Science and Technology National Research Foundation Centre of Excellence ...
Various
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