
Coloniatherium cilinskii
Coloniatherium cilinskii is an extinct genus and species of meridiolestid mammal from the Late Cretaceous La Colonia Formation of north-central Chubut Province, Argentina. Described from jaw fragments, isolated teeth, and petrosals, it is regarded as a large mesungulatid interpreted as part of a distinctive endemic South American Mesozoic mammal radiation.

























































