Cyonosaurus

Cyonosaurus; Temporal range: Late Permian (Wuchiapingian to Changhsingian), As. S Artin. Kung. Road. W Ca. Wu. C
	Skull of C. longiceps in the Field Museum of Natural History.
Scientific classification
Kingdom:	Animalia
Phylum:	Chordata
Clade:	Synapsida
Clade:	Therapsida
Clade:	†Gorgonopsia
Genus:	†Cyonosaurus; Olson, 1937
Species
	†C. longiceps Olsen, 1937 (type); †C. rubidgei (Broom, 1937 [originally Cyniscops rubidgei]); †C. kitchingi (Broom, 1936 [originally Galerhynchus kitchingi]); †C. broomianus (von Huene, 1950 [originally Cyniscops broomianus]); †C. tenuirostris (Boonstra, 1953 [originally Tangagorgon tenuirostris]);
Synonyms
	Cyniscops Broom, 1937; Cyniscopoides Brink and Kitching, 1953; Tangagorgon Boonstra, 1953;

Cyonosaurus is a genus of gorgonopsian therapsids from the Late Permian of South Africa and Zambia. The type species Cyonosaurus longiceps was named in 1937. Cyonosaurus had a skull length between 9 to 18 centimetres (3+1⁄2 to 7 in). However, an unnamed species of Cyonosaurus was noted to have a skull length of 20 cm (7.9 in). Originally, some have been reported from Early Triassic strata, but further investigation revealed that these reports were erroneous. Suggesting that Cyonosaurus went extinct during the Permian-Triassic mass extinction.