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EARTH SCIENCE

Platte Canyon High School
Bailey, Colorado

Time Scale

GEOLOGIC TIME SCALE

Tertiary

after Harland et al., 1982

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Period Epoch Age Ma age Comments
      2  
Tertiary

(Neogene)

Pliocene Piacenzian    
Zanclian 5.1  
Miocene Messinian    
Tortonian    
Serravallian    
Langhian (late) 14.4  
Langhian (early)    
Burdigalian    
Aquitanian 24.6  
Tertiary

(Paleogene)

Oligocene Chattian 32.8  
Rupelian 38  
Eocene Priabonian 42  
Bartonian    
Lutetian 50.5  
Ypresian 54.9  
Paleocene Thanetian 60.2  
Danian 65  
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