||The`ri*o*don"ti*a (?), n. pl. [NL., fr. Gr. &?; (dim. of &?; a beast) + &?;, &?;, a tooth.] (Paleon.) An extinct order of reptiles found in the Permian and Triassic formations in South Africa. In some respects they resembled carnivorous mammals. Called also Theromorpha.

&fist; They had biconcave vertebræ, ambulatory limbs, and a well- developed pelvis and shoulder girdle. Some of the species had large maxillary teeth. The head somewhat resembled that of a turtle. The Dicynodont is one of the best-known examples. See Dicynodont.

||The`ri*o*don"ti*a (?), n. pl. [NL., fr. Gr. &?; (dim. of &?; a beast) + &?;, &?;, a tooth.] (Paleon.) An extinct order of reptiles found in the Permian and Triassic formations in South Africa. In some respects they resembled carnivorous mammals. Called also Theromorpha.

&fist; They had biconcave vertebræ, ambulatory limbs, and a well- developed pelvis and shoulder girdle. Some of the species had large maxillary teeth. The head somewhat resembled that of a turtle. The Dicynodont is one of the best-known examples. See Dicynodont.