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Periods/eras
| Term | |
|---|---|
| Pre- Cambrian | Bacteria, Algae, and fungi evolve and the earliest animal appeared |
| Palezoic Era | Old Life, Life began in the ocean but eventually transitioned onto land |
| Cenozoic Era | Recent Life, Age of Mammals |
| Cambrian Period | the largest number of creatures evolved in any single period of the history of the Earth |
| Ordovician Period | The Earliest fishes evolve |
| Silurian Period | The land plants and animals evolve |
| Devonian Period | Th first ferns and cone-bearing plants grow on land, also the early amphibians evolve |
| Carboniferous Period | Many different insects and amphibians evolve and the earliest reptiles appear |
| Permian Period | Insects and reptiles become wide-spread and varied |
| Triassic Period | Reptiles become common and that first dinosaur and reptile-like evolve |
| Jurassic Period | Mammals become more common and that large dinosaurs roam the world |
| Cretaceous Period | First flowering plants appear and there are more kinds of mammals |
| Tertiary Period | New groups of mammals appear and flowering plants are more common |
| Quaternary Period | Humans evolve and woolly and mammoths became extinct. |
| Mesozoic Era | Middle Life, Age of Reptiles |