Geologic Time Scale
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Precambrian Era
Earth & oceans formed
Oldest rock/Prokaryotic cell
Eukaryotic cell/jellyfish-like animal
arthropods/first mass extinction
Paleozoic Era
Ancient Continents South Of Equator/Ice cap covers North America
Appalachian Mountains Form/Pagea forms
Vertebrates arise/Plants On Land
Lungfish/insects
Amphibians/Reptiles
Paleozoic Mass Extinction
Mesozoic Era
Pangea Breaks Apart/South America Breaks Away from Africa
The Age Of Reptiles/Flowering Plants
Dinosaurs/Mammals
Bird/Snakes
Mesozoic Mass Extinction
Cenozoic Era
Rocky Mountains Formed/Himalayas form
Continents Move To Current Positions/Ice Age
Grass/Modern Animal groups appear
Lucy The Australopithecus/Modern Humans
Welcome to the Mesozoic Era! On this page you will learn about snakes, mammals, dinosaurs etc. It was from 245-66 MYA.