Archean Eon
Cambrian Epoch
Carboniferous Epoch
Cenozoic Era
Cretaceous Epoch
Devonian Epoch
Eocene Epoch
Hadean Eon
Holocene Epoch
Jurassic Epoch
Mesozoic Era
Miocene Epoch
Oligocene Epoch
Ordovician Epoch
Paleocene Epoch
Paleozoic Era
Permian Epoch
Phanerozoic Eon
Pleistocene Epoch
Precambrian Era
Proterozoic Eon
Silurian Epoch
Triassic Epoch