| Eras | Periods | Epochs/Series | Life on Earth | |
|---|---|---|---|---|
| C E N O Z O I C |
Quaternary 1.8 mya to Present |
Recent/Holocene Pleistocene |
Rise and Dominance of Man | |
| Tertiary 65-1.8 mya |
Pliocene | Modern Plants and Animals Flurish Rapid Development of Mammals, Insects, and Plants | ||
| Miocene | ||||
| Oligocene | ||||
| Eocene | ||||
| Paleocene | ||||
| M E S O Z O I C |
Cretaceous 146-65 mya |
Gulfian Comanchean Coalhuilan |
Mass Extinction Deccan Traps, India Flood Basal Event Last of the Great Dinosaurs Last Ammonites Rise of Flowering Plants Modern Insects Radiate | |
| Jurassic 208-146 mya |
Upper Jurassic Middle Jurassic Liassic |
Large Dinosaurs Roam the Earth Dinosaurs Radiate and Diversify Birds Appear Small Mammals | ||
| Triassic 245-208 mya |
Upper Triassic Middle Triassic Sythian |
The First Dinosaurs Cycad-like Plants Appearence of Marine Reptiles Crocodiles, Turtles | ||
P A L E O Z O I C |
Permian 287-245 mya |
Upper Permian Lower Permian |
Greatest Mass Extinction Siberian Traps- Mass Basal Event Rise of Reptiles Advancced Mammals | |
| C A R B O N I F E R O U S |
Pennsylvanian 325-287 mya |
Upper Pennsylvanian Middle Pennsylvanian Morrowan |
Modern Insects Develope The Great Coal Deposites Primitive Conifers, Seed Ferns | |
| Mississippian 354-325 mya |
Chesterian Meramecian Osagian Kinderhookian |
Plants Flurish on Land Crinoids Build Massive Limestones Reptiles appear Primitive Ammonites | ||
| Devonian 417-354 mya |
Chautauquan Senecan Erian Ulsterian | Climax of Brachiopods First Amphibians First Land Snails Insects Appear Earliest seed plants Widespread Coral Reefs | ||
| Silurian 443-417 mya |
Cayugan Niagarian Alexandrian |
Vascular plants appear Primitive terrestrial predators Jawed fish Appear | ||
| Ordovician 490-443 mya |
Cincinnatian Champlainian Canadian |
Climax of Trilobites First Fish Appear First Land Plants Appear Bryzoans Appear | ||
| Cambrian 542-490 mya |
Croxian Albertan Waucoban |
Trilobites Dominate Marine Invertebrates Flurish and Diversify All Phylum Appear in Fossil Record except Bryzoans | ||
| Proterozoic Archeozoic |
Marine Invertebrates Appear First Signs of Life |
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