Abstract The Permian-Triassic mass extinction (PTME, ca. 252 Mya) was one of the most
severe biotic crises of the Phanerozoic, eliminating> 90% of marine and terrestrial species …

Nonmarine biostratigraphic/biochronologic schemes have been created for all or parts of the
late Carboniferous–Middle Triassic using palynomorphs, megafossil plants, conchostracans …

All modern mammals are descendants of the paraphyletic non-mammaliaform Synapsida,
colloquially referred to as the “mammal-like reptiles.” It has long been assumed that these …

The evolutionary transition from early synapsids to therian mammals involved profound
reorganization in locomotor anatomy and function, centered around a shift from “sprawled” …

Abstract The Tapinocephalus Assemblage Zone is the second oldest tetrapod biozone of the
Beaufort Group (Adelaide Subgroup, Karoo Supergroup), biostratigraphically positioned …

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

Gorgonopsians are among the most recognizable groups of synapsids from the Permian
period and have an extensive but mostly cranial fossil record. By contrast, relatively little is …

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 …

In recent years photogrammetry has become an essential tool in the study of tetrapod
footprints. Morphological analyses of footprints are interpretative; thus, researchers should …

The contact between the Daptocephalus to Lystrosaurus declivis (previously Lystrosaurus)
Assemblage Zones (AZs) described from continental deposits of the Karoo Basin was …