Class [Mammalia] Linnaeus, 1758 - mammals
   1 Family †Purgatoriidae Van Valen & Sloan, 1965
   2.1 Order †Plesiadapiformes Simons & Tattersall, 1972 see Suborder Plesiadapiformes Simons & Tattersall, 1972
   2.2 Order Primates Linnaeus, 1758 - primates