Rhachiocephalidae

Rhachiocephalidae; Temporal range: Late Permian
Scientific classification
Kingdom:	Animalia
Phylum:	Chordata
Clade:	Synapsida
Clade:	Therapsida
Clade:	†Anomodontia
Clade:	†Dicynodontia
Clade:	†Cryptodontia
Family:	†Rhachiocephalidae; Maisch, 2000
Genera
	Kitchinganomodon; Rhachiocephalus;
Synonyms
	Pelorocyclopinae Broom, 1935; Pelorocyclopini King, 1988;

Rhachiocephalidae is an extinct family of dicynodont therapsids. It includes two genera from the Late Permian of southern Africa, Rhachiocephalus and Kitchinganomodon. Rhachiocephalids were the largest dicynodonts in the Permian, although the kannemeyeriiform dicynodonts of the Late Triassic grew to larger sizes. Rhachiocephalids are also unusual in that they have long, low skulls.^[1]