-
41,000 BCE
Headen
Formation of earth (inabitant) -
40,000 BCE
Archean
earth become abitable spontaneos generation of first cells -
38,000 BCE
Proterozoic
simple multicellular sea creatures develop -
35,000 BCE
cambriam
sudden explotion of life -
33,000 BCE
ordovician
trilobites abundant; some vertebrates -
30,000 BCE
silurian
land colonized by arthropods and plants -
29,000 BCE
devonian
first amphibians; freshwatere fish -
26,000 BCE
mississippian
famphibians spread; sharks and bony fish -
24,000 BCE
pennsylvanian
giant insects; first reptiles -
21,000 BCE
permian
modern insect; reptiles spread;evergreens -
19,000 BCE
triassic
first dinosaurs;rise of mamal -
17,000 BCE
jurassic
giant dinosaurs; early birds -
15,000 BCE
cretaceous
mass extinctiions(including dinosaurs)flowering plants appear -
13,000 BCE
paleocene epoch
early mammals became dominant -
10,000 BCE
oligocene
primitive apes; whales; first modern mammals -
8000 BCE
pliocene
peak of mammals; modern invertebrates -
6000 BCE
pleistocene
ice age(s); mass estinctions; rise of human -
4000 BCE
recent (holocene)
end of ice age; rise of human civilization
