Geologic Time Scale notes…44

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Presentation transcript:

Geologic Time Scale notes…44

Geologic Time Scale…44

EON Largest group of the history of the Earth First 3 eons = Precambrian time 4th eon is the Phanerozoic eon EON

ERAS Eons divided into eras. Most recent eon is divided into three eras. -Paleozoic -Mesozoic -Cenozoic

Paleozoic Era Beginning-ocean life End-reptiles, amphibians, ferns Greatest extinction of all time

Mesozoic Era Dinosaurs Some mammals, birds, and flowering plants evolved Pangaea

Cenozoic Era Current era Mammals!!!

Geologic Time Scale Music Video