Geological Timeline

Precambrian

Jan 1, 2012

4.56 billiion years ago
Geological Event: The Earth forms
Biological Event: First living Organisms

Paleozoic Era

Jan 2, 2012

544-255 million years ago

Cambrian Period

Jan 3, 2012

505 million years ago
Geological Event: Break up of supercontinent Rodinia
Biological Event: Cambrian Explusion

Ordovician Period

Jan 4, 2012

505-440 million years ago
Geological Event: Gongwana pushed south
Biological Event: First laand plants

Silurian Period

Jan 5, 2012

440-410 million years ago
Geological Event: Gondwana centered on the South Pole
Biological Event: First vascular plants

Devonian Period

Jan 6, 2012

410-360 million years ago
Geological Event: World was split into two big continents
Biological Event: Amphibians evolved from fish

Carboniferous Period

Jan 7, 2012

359-299 million years ago
Geogical Event: Landmasses began to for Pangaea
Biological Event: First reptiles

Permian Period

Jan 8, 2012

299-251 million years ago
Geological Event: Pangaea drifting north led to a warming trend
Biological Event: Mammal-like reptiles

Mesozoic Era

Jan 9, 2012

251-65 million years ago

Triassic Period

Jan 10, 2012

248-208 million years ago
Geologic Events: Pangaea begins to split diring end of period
Biologic Events: First Mammals

Jurassic Period

Jan 11, 2012

208-146 million years ago
Geolologic Event: Pangaea continues to spread apart
Biologic Event: Evolution of birds

Cretaceous Period

Jan 12, 2012

146-65 million years ago
Geologic Event: Pangaea continued moving apart
Biologic Event: Flowering plants evolved

Cenozoic Era

Jan 13, 2012

65 million years ago- now

Teritiary Period

Jan 14, 2012

65-1.8 million years ago
Geological Event: Pangaea became seperate continents
Biological Event: Evolution of mammals and grass

Quaternary Period

Jan 15, 2012

1.8 million years ago- now
Geological Event: Series of ice ages in begining of period
Biological Event: Homo sapiens