Zatheria is a group (sublegion) of mammals that includes the common ancestor of Arguitheriidae, Arguimuridae, Vincelestidae, Peramuridae and Tribosphenida (living therians plus all of its ancestors).
Zatheria is a group (sublegion) of mammals that includes the common ancestor of Arguitheriidae, Arguimuridae, Vincelestidae, Peramuridae and Tribosphenida (living therians plus all of its ancestors).