WA Geologic History

Eon Era Period Epoch Name
Phanerozoic Cenozoic Neogene (Quaternary) Holocene  
Pleistocene  
Paleogene (Tertiary) Pliocene  
Miocene  
Oligocene  
Eocene  
Paleocene  
Mesozoic Cretaceous  
Jurassic  
Triassic  
Paleozoic Permian  
Carboniferous Pennsylvanian  
Mississippian  
Devonian  
Silurian  
Ordovician  
Cambrian  
Proterozoic Neoproterozoic
Ediacaran  
Cryogenian  
Tonian  
Mesoproterozoic  
Paleoproterozoic  
Archaean  
Hadean