procolophonid
/ˌprəʊkɒləˈfɒnɪd/Palaeontology
noun
A reptile of the extinct family Procolophonidae, which comprised small plant-eating cotylosaurs found from the Permian to late Triassic periods.
adjective
Of, relating to, or characteristic of the family Procolophonidae.
Origin
1940s; earliest use found in Alfred Romer (1894–1973), paleontologist and biologist. From scientific Latin Procolophon, genus name + -id, after scientific Latin Procolophonidae, family name.