Named By: Robert Broom - 1913.
Synonyms: Possibly Arctops.
Classification: Chordata, Therapsida, Gorgonopsia.
Species: S. grimbeeki, S. major, S. parvus & S. robustus.
Known locations: South Africa.
Time period: Late Permian.
Fossil representation: Skulls.
Scylacognathus was named a year before another genus caled Arctops which may actually be the adult form of Scylacognathus. If correct then only Scylacognathus would be a valid genus of gorgonopsid, and the skulls attributed to Arctops will be added to Scylacognathus.