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First Complete Gorgonopsid Skeleton Found
An article describing the discovery of this late Permian predator.
Fossil Reptiles of the South African Karoo
A very detailed and comprehensive look at the Permian/Triassic ecosystem of Africa, and of the mammal-like reptiles that inhabited it.
Permian Geography
Description and maps of the continents as they existed at the time.
Permian Marine Fossils
A gallery, with brief descriptions, of specimens from the Kaibab Formation in Arizona.
Permian-Carboniferous Synapsids
Lecture notes from the Major Features of Vertebrate Evolution class at the University of Toronto, focusing on the Pelycosaurs.
Synapsid Classification and Autapomorphies
A cladistic description with annotated diagrams.
Synapsida - Pelycosauria
An overview of this primitive synapsid class, with links to more detailed information.
Systematics of the Synapsida
Cladogram with links to pages on the Dinocephalids, Pelycosaurs, Dicynodonts, Cynodonts, Mammals and Gorgonopsids.
The Permian
An overview of the period from the UC Berkeley Museum of Paleontology.
The Russian Dinosaur Exposition
A gallery, with links to each animal, of Permian synapsids and therapsids. Some later period animals are also included.