+----------+-----------------------+------------------------------------+ | | |=Man=, Mastodon, Saber-toothed | | | Quaternary. | Tiger and other Vertebrates. | | | | Invertebrates. | | +---------+-------------+------------------------------------+ | | | |Equus and other Vertebrates. | | | | Pliocene. | Pliohippus. Protohippus. | | | | | Invertebrates. | | | +-------------+------------------------------------+ |Cenozoic. |Tertiary.| Miocene. |Miohippus and other Vertebrates. | | | | | Mesohippus. Invertebrates. | | | +-------------+------------------------------------+ | | | |=Monkeys.= | | | | |=Lemurs.= Primitive Carnivora and | | | | Eocene. | Herbivora. Orohippus. | | | | | Invertebrates. Eohippus. Fishes, | | | | | Amphibians, Reptiles. Land Birds. | | | | | Monotremes. Marsupials. | | | | |=Prim. Monodelphs.= | +----------+---------+-------------+------------------------------------+ | | |Marsupials. Monotremes. Reptiles. | | | | Reptilian Birds. Amphibians. | | | Cretaceous. | Teleosts and other Fishes. | | | | Belemnites and other | | | | Invertebrates. | | +-----------------------+------------------------------------+ | | |Reptilian Birds, Reptilian Mammals. | |Mesozoic. | Jurassic. | Rays, Chimæroids and other | | | | Vertebrates. Invertebrates. | | +-----------------------+------------------------------------+ | | |Primitive =Marsupials=, Primitive | | | Triassic. | Monotremes, Reptiles, Amphibians, | | | | Fishes. Ceratites and other | | | | Invertebrates. | +----------+--------------+--------+------------------------------------+ | | |Permian.|Primitive =Reptiles=, Amphibians, | | | | | Fishes. Invertebrates. | | |Carboniferous.+--------+------------------------------------+ | | | |Primitive =Amphibians=. |