o
Archean
Eon (4600 mya)
o
Proterozoic
Eon (2500 mya)
·
Paleozoic
Era
o
Cambrian
Period (590 mya)
o
Ordovician
Period (505 mya)
o
Silurian
Period (438 mya)
o
Devonian
Period (408 mya)
o
Carboniferous
Period
§
Mississipian
Epoch (360 mya)
§
Pennsylvanian
Epoch (320 mya)
o Permian Period (286 mya)
·
Mesozoic
Era
o Triassic Period (248 mya)
o Jurassic Period (213 mya)
o Cretaceous Period (144 mya)
·
Cenozoic
Era
o Tertiary Period
§
Paleocene
Epoch (65 mya)
§
Eocene
Epoch (55 mya)
§
Oligocene
Epoch (38 mya)
§
Miocene
Epoch (25 mya)
§
Pliocene
Epoch (5 mya)
o Quaternary Period
§
Pleistocene
Epoch (2 mya)
§
Holocene
Epoch (0.01 mya)