Timeline: Geologic Eras

ERA PERIOD EPOCH

CENOZOIC (65.5 million years ago to present)

Neogene (23 million years ago to the present) Holocene (11,500 years ago to present)
    Pleistocene (1.8 million years ago to 11,500 years ago)
    Pliocene (5.3-1.8 million years ago)
    Miocene (23-5.3 million years ago)
  Paleogene (65.5-23 million years ago) Oligocene (33.9-23 million years ago)
    Eocene (55.8-33.9 million years ago)
    Paleocene (65.5-55.8 million years ago)
MESOZOIC (251-65.5 million years ago) Cretaceous (145.5-65.5 million years ago)  
  Jurassic (200-145.5 million years ago)  
  Triassic (251-200 million years ago)  
PALEOZOIC (542-251 million years ago) Permian (299-251 milion years ago)  
  Pennsylvanian (318-299 million years ago)  
  Mississippian (359-318 million years ago)  
  Devonian (416-359 million years ago)  
  Silurian (444-416 million years ago)  
  Ordovician (488-444 million years ago)  
  Cambrian (542-488 million years ago)  
PRECAMBRIAN (undefined to 542 million years ago) Proterozoic (2,500-542 million years ago)  
  Archean (undefined to 2,500 million years ago)  

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 


Source: Pamela J. W. Gore, Georgia State University Perimeter College

 
From Our Home Page
Blue Ridge Mountains
...

Read more...
Blueberries and Strawberries

The Georgia blueberry and strawberry industries are dynamic enterprises of relatively recent development.

Read more...
Atlanta Campaign

The "Atlanta campaign" is the name given by historians to the military operations that took place in north Georgia during the Civ

Read more...
Georgia State Parks

Georgia State Parks and Historic Sites, a division of the Department of Natural Resources, protects more than 85,000 acres of natural beauty at more than sixty parks and historic sites in the stat

Read more...
Courtesy of Hargrett Rare Book and Manuscript Library, University of Georgia Libraries