CARBONIFEROUS 360 mya to 300 mya Ancestors of birds, reptiles

and mammals

PERMIAN 300 mya to 250 mya Largest mass extinction Pangaea forms

TRIASSIC 250 mya to 210 mya Conifer trees Mosses Early dinosaurs

JURASSIC 210 mya to 145 mya Plant eating dinosaurs Small carnivorous dinosaurs Birds

CRETACEOUS 145 mya to 65 mya Flowering plants Dinosaurs go extinct

TERTIARY 65 mya to 1.8 mya Grass, flowers,

insects, fish, birds, mammals

QUATERNARY

1.8 mya to present Mammoths, saber tooth tigers Last ice age Humans appear