Zatheria

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Tribosphenida

Zatheria. Zatheria is a group (sublegion) of mammals that is defined as including the ancestor of Arguitheriidae, Arguimuridae, Vincelestidae, Peramuridae and Tribosphenida (living Therians plus all of its descendants).

Further reading[edit] McKenna, Bell: Classification of Mammal: Above the Species Level External links[edit]