Akidnognathidae

Akidnognathidae Temporal range: Late Permian - Early Triassic 254–247 Ma PreꞒ Ꞓ O S D C P T J K Pg N
Holotype skull of Jiufengia jiai
Scientific classification
Domain:	Eukaryota
Kingdom:	Animalia
Phylum:	Chordata
Clade:	Synapsida
Clade:	Therapsida
Clade:	†Therocephalia
Clade:	†Eutherocephalia
Family:	†Akidnognathidae Haughton & Brink, 1954 (Nopcsa, 1928)
Genera
List † Akidnognathus Haughton, 1918 † Moschorhinus Broom, 1920 † Euchambersia Broom, 1931 † Cerdosuchoides Broom, 1936 † Notaelurodon Broom, 1936 † Pelictosuchus Broom, 1940 † Proalopecopsis Brink & Kitching, 1951 † Promoschorhynchus Brink, 1954 † Annatherapsidus Kuhn, 1963 † Zorillodontops Cluver, 1969 † Olivierosuchus Kammerer & Sidor, 2002 † Shiguaignathus Liu & Abdala, 2017 † Jiufengia Liu & Abdala, 2019
Synonyms
Euchambersiidae Boonstra, 1934 Annatherapsididae Kuhn, 1963 Moschorhinidae Mendrez, 1974

Akidnognathidae is an extinct family of therocephalian therapsids from the Late Permian and Early Triassic of South Africa, Russia and China. The family includes many large-bodied therocephalians that were probably carnivorous, including Moschorhinus and Olivierosuchus. One akidnognathid, Euchambersia, may even have been venomous. Akidnognathids have robust skulls with a pair of large caniniform teeth in their upper jaws. The family is morphologically intermediate between the more basal therocephalian group Scylacosauridae and the more derived group Baurioidea.