Headbutting is a combative behavior most popularly portrayed and exemplified in the extant
bighorn sheep (Ovis canadensis). When behaviorally proposed in extinct taxa, these …

Abstract The Endothiodon Assemblage Zone is the third oldest tetrapod biozone of the
Beaufort Group (Adelaide Subgroup, Karoo Supergroup). It is situated between the …

Early terrestrial vertebrates (amniotes) provide a classic example of diversification following
adaptive zone invasion. The initial terrestrialization of vertebrates was closely followed by …

Taphonomic deformation, the distortion of fossils as a result of geological processes, poses
problems for the use of geometric morphometrics in addressing paleobiological questions …

For much of its history, the fossil record of burnetiamorph therapsids was both species poor
and known from very few specimens. By contrast, the past two decades have seen a …

The Beaufort Group of the main Karoo Basin of South Africa records two major extinction
events of terrestrial vertebrates in the late Palaeozoic. The oldest of these has been dated to …

Varanopids are a group of Palaeozoic terrestrial amniotes which represent one of the
earliest‐diverging groups of synapsids, but their palaeoneurology has gone largely …

The nasal region of the fossorial anomodont Kawingasaurus fossilis was virtually
reconstructed from neutron‐computed tomographic data and compared with the terrestrial …

The non-mammalian therapsids comprise a paraphyletic assemblage of Permian-Jurassic
synapsids closely related to mammals that includes six major clades of largely unresolved …

A new burnetiamorph therapsid, Isengops luangwensis, gen. et sp. nov., is described on the
basis of a partial skull from the upper Madumabisa Mudstone Formation of the Luangwa …