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Precambrian
4.56 billiion years ago
Geological Event: The Earth forms
Biological Event: First living Organisms -
Paleozoic Era
544-255 million years ago -
Cambrian Period
505 million years ago
Geological Event: Break up of supercontinent Rodinia
Biological Event: Cambrian Explusion -
Ordovician Period
505-440 million years ago
Geological Event: Gongwana pushed south
Biological Event: First laand plants -
Silurian Period
440-410 million years ago
Geological Event: Gondwana centered on the South Pole
Biological Event: First vascular plants -
Devonian Period
410-360 million years ago
Geological Event: World was split into two big continents
Biological Event: Amphibians evolved from fish -
Carboniferous Period
359-299 million years ago
Geogical Event: Landmasses began to for Pangaea
Biological Event: First reptiles -
Permian Period
299-251 million years ago
Geological Event: Pangaea drifting north led to a warming trend
Biological Event: Mammal-like reptiles -
Mesozoic Era
251-65 million years ago -
Triassic Period
248-208 million years ago
Geologic Events: Pangaea begins to split diring end of period
Biologic Events: First Mammals -
Jurassic Period
208-146 million years ago
Geolologic Event: Pangaea continues to spread apart
Biologic Event: Evolution of birds -
Cretaceous Period
146-65 million years ago
Geologic Event: Pangaea continued moving apart
Biologic Event: Flowering plants evolved -
Cenozoic Era
65 million years ago- now -
Teritiary Period
65-1.8 million years ago
Geological Event: Pangaea became seperate continents
Biological Event: Evolution of mammals and grass -
Quaternary Period
1.8 million years ago- now
Geological Event: Series of ice ages in begining of period
Biological Event: Homo sapiens
