Ictidosaurus was a therapsid genus found in the Abrahamskraal Formation of South Africa, which lived during the middle Permian period.

[1][2] Older classifications of the species, along with many other specimens found in the Iziko South African Museum archives, were originally classified within therocephalian family names, in this case the Ictidosauridae, which has been reclassified as belonging to the Scylacosauridae.

[4] The specimens of these collections, holotype SAM-PK-630 (NMQR 2910) and SAM-PK-77957 (AMNH 5527), both have the anterior portions of their snouts and mandibles in occlusion, making cranial anatomy unknown.

[4] The two specimens known are from a river delta plain and a terrestrial depositional environment, with the type locality being near Beaufort West (32.3° S, 22.6° E), Western Cape, South Africa.

[4][2] This locality was, during the Permian, positioned at what today is the Drake Passage (60.0° S, 34.1° W),[2] in-between South America and Antarctica.