An article describing the discovery of this late Permian predator.

A very detailed and comprehensive look at the Permian/Triassic ecosystem of Africa, and of the mammal-like reptiles that inhabited it.

Description and maps of the continents as they existed at the time.

A gallery, with brief descriptions, of specimens from the Kaibab Formation in Arizona.

Lecture notes from the Major Features of Vertebrate Evolution class at the University of Toronto, focusing on the Pelycosaurs.

A cladistic description with annotated diagrams.

An overview of this primitive synapsid class, with links to more detailed information.

Cladogram with links to pages on the Dinocephalids, Pelycosaurs, Dicynodonts, Cynodonts, Mammals and Gorgonopsids.

An overview of the period from the UC Berkeley Museum of Paleontology.

A gallery, with links to each animal, of Permian synapsids and therapsids. Some later period animals are also included.