This is an incomplete list of prehistoric mammals. It does not include extant mammals or recently extinct mammals. For extinct primate species, see: list of fossil primates.[1][2]
Early Jurassic–Late Cretaceous
Late Cretaceous–Recent
Oligocene–Recent
Eocene–Recent
Late Cretaceous–Recent
Paleocene–Recent
Eocene–Recent
Eocene–Recent
Paleocene–Recent
Note: The "condylarths" are considered paraphyletic, i.e. a grouping of early ungulate-like mammals not necessarily closely related.
Paleocene–Eocene
Paleocene–Recent
to be sorted
Paleocene–Recent
Genus †Protobradys? Ameghino 1902 [Incertae sedis]
Eocene–Recent
Eocene–Recent
Parvorder Archaeoceti
to be sorted
Eocene–Recent
Eocene–Recent