Procolophonia

Procolophonians
Temporal range: Guadalupian - Late Triassic,
Pareiasaurus (Pareiasauromorpha)
Sclerosaurus (Procolophonoidea)
Scientific classification
Kingdom: Animalia
Phylum: Chordata
Class: Reptilia
Clade: Ankyramorpha
Suborder: Procolophonia
Seeley, 1888
Subgroups

Procolophonia is an extinct clade of basal reptiles, traditionally classified as "parareptiles", that lived from the Middle Permian till the end of the Triassic period. The group includes the largest known parareptiles, the up to oxen-sized herbivorous pareiasaurs, as well as the longest lived "parareptiles", the small lizard-like procolophonoids. Although traditionally grouped in Parareptilia, this classification scheme has been questioned.