Protungulatum was a small rat-like mammal that lived during the Cretaceous period and possibly Paleocene epoch. It is believed that Protungulatum was one of the oldest ancestors to all placental mammals (non-marsupial mammals).
Protungulatum was a small rat-like mammal that lived during the Cretaceous period and possibly Paleocene epoch. It is believed that Protungulatum was one of the oldest ancestors to all placental mammals (non-marsupial mammals).