Named By: Robert Broom - 1911.
Classification: Chordata, Therapsida, Gorgonopsidae.
Species: A. curvimola (type), A. breviceps.
Size: 18 centimetre skull, Body about 1.1 meters long.
Known locations: South Africa.
Time period: Late Permian.
Fossil representation: Several specimens.
a body length of just over one meter, Arctognathus
was on the small
side for a gorgonopsid,
but it still would have been a potent
predator in its own right. As of 2013 the only species of
Arctognathus still recognised as valid are A.
curvimola and A.
Two additional species of Arctognathus once existed, but these have now been assigned to new genera. Fossils of Arctognathus cookei have now been moved to Anoplosaurus, though they are also indeterminate. Arctognathus nasuta fossils have now been used to establish the type species of the genus Njalila.
- Cranial osteology of Arctognathus curvimola, a short-snouted gorgonopsian from the Late Permian of South Africa. - Papers in Palaeontology - Christian F. Kammerer - 2014.