Tertiary: From 1.6 Ma to 65 Ma. Large radiation of mammals after the extinction of the dinosaurs.
Cretaceous: From 65 Ma to 144 Ma. Appearance of the first marsupials.
Jurassic: From 144 Ma to 208 Ma. Appearance of the first birds.
Triassic: From 208 Ma to 245 Ma. First appearance of dinosaurs.
Permian: From 245 Ma to 286 Ma. Continents in Pangea configuration.
Pennsylvanian: From 286 Ma to 330 Ma. Appearance of first reptiles.
Mississippian: From 330 Ma to 360 Ma. Radiation of tetrapods.
Devonian: From 360 Ma to 408 Ma. Appearance of first amphibians, (first terrestrial vertebrates).
Silurian: 408 Ma to 438 Ma. First vascular plants.
Ordovician: From 438 Ma to 505 Ma. First jawless fish, (Agnatha).
Cambrian: From 505 Ma to 570 Ma. Cambrain "explosion " of life. All phylas established.
Proterozoic: From 2.5 Ga to 544 Ma. (*There is some debateover the actual placement of the boundry between the Proterozoic and the Cambrian, having to do with the ediacaran fauna of the time.) No fossil evidence.
2.5 Ga to 4.6 Ga. No fossil evidence.