-
Period: 4550 BCE to 570 BCE
Precambrian
Hadean (4550-3800), Archean (3800-2500), and Proterozoic (2500-570) -
Period: 570 BCE to 245 BCE
Paleozoic
Cambrian (570-505), Ordovician (505-436), Silurian (436-406), Devonian (406-360), Mississipian (360-320), Pennsylvanian (320-286), and Permian (286-245) -
Period: 245 BCE to 66 BCE
Mesozoic
Triassic (245-206), Jurassic (206-144), and Cretaceous (144-66) -
Period: 66 BCE to 23 BCE
Cenozoic
Paleogene: (Paleocene (66.4-57.8), Eocene(57.8-36.6), and Oligocene (36.6-23.7) -
Period: 23 BCE to 1 BCE
Cenozoic
Neogene: Miocene (23.7-5.3) and Pilocene (5.3-1.6) -
Period: 1 BCE to
Cenozoic
Quaternary: Pleistocene (1.6-0.01) and Holocene (0.01-present)