Homework‎ > ‎Science‎ > ‎

May 1st, 2017

posted May 1, 2017, 1:42 PM by Unknown user
Science: We started Section 05 today -- create the Geologic Time Scale in your notebook or by using Google Docs. 

Geologic Time Scale

Eon

Era

Period

Epoch

Millions of Years











Phanerozoic Eon





Cenozoic Era

Quaternary

Holocene

0.01

Pleistocene

1.8

Tertiary

Pliocene

5.3

Miocene

23

Oligocene

33.9

Eocene

55.8

Paleocene

65.5


Mesozoic Era

Cretaceous


146

Jurassic


200

Triassic


251




Paleozoic Era

Permian


299

Pennsylvanian


318

Mississippian


359

Devonian


416

Silurian


444

Ordovician


488

Cambrian


542

Proterozoic Era

2,500

Archean Eon

3,800

Hadean Eon

4,600


Comments