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Geologic Time, (##) = # Million Years Ago - Coggle Diagram
Geologic Time
Phanerozoic
Mesozoic
Jurrasic (first bird) (206)
Triassic (248)
Cretaceous (144)
Paleozoic
Carboniferous
Pennsylvania (323)
Mississipinian (354)
Devovian (first amphibians) (417)
Permian (first reptiles) (290)
Silurian (first insect fossiles) (443)
Ordovician (first vertebrate fossils) (490)
Cambrian (first plants fossils) (543)
Cenozoic
Quaternaty
Holocene (0.01)
Pleistocene (1.8)
Tertiary
Oligocene (33.7)
Eocene (54.8)
Paleocene (65)
Miocene (23.8)
Pliocene (5.3)
Precambrian Time
Proterosoic (2500)
Archean (3800)
Hadean (4500)
(##) = # Million Years Ago