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EARTH SCIENCE

Platte Canyon High School
Bailey, Colorado

Time Scale

GEOLOGIC TIME SCALE

Carboniferous

after Harland et al., 1982

  =========================================================
Period Epoch Age Ma age Comments
      286  
Carboniferous

(Pennsylvanian)

Gzelian Noginskian    
Klazminskian    
Kasimovian Dorogomilovsk    
Chamovnichesk    
Krevyakinskian    
Moscovian Myachkovskian 296  
Podolskian    
Kashirskian    
Vereiskian    
Bashkirian Melekesskian    
Cheremshansk 315  
Yeadonian    
Marsdenian    
Kinderscoutian 320  
Carboniferous

(Mississippian)

Serpukhovian Alportian    
Chokierian    
Arnsbergian    
Pendleian 333  
Visean Brigantian    
Asbian    
Holkerian    
Arundian    
Chadian 352  
Tournaisian Ivorian    
Hastarian 360