Tabular View of Geological Periods and of Life-Epochs. 



Geological Periods. 



( Post-Tertiary L^^^^^ 



o"" |Po3t-Glacial. 



Cainozoic 

 or 



Neozoic. 



Quaternary. 



Tertiary 



/Pleistocene or 

 Glacial. 

 ' Pliocene. 

 I Miocene. 

 \Eocene. 



Cretaceous 



,, / Jurassic 



Mesozoic. n -^ 



Triassic 



I Upper, 

 •1 Lower, or 

 (Neocomian. 



(Oolite. 

 \ Lias. 



I Upper, 

 Middle, or 

 Muschelkalk. 

 Lower. 



Age of Man 

 and modern 

 Mammals. 



Age of Extinct 



Mammals. 



(Earliest 



Placental 



Mamm-ils ) 



PALiEOZOIC 



Permian 



! Upper, 

 Middle, or 

 Magnesian Limestone. 

 Lower. 



/Upper Coal-Formation. 

 ^ , .y I Coal- Forma' ion. 

 Ca rlontferous Carboniferous Limestone. 



V Lower Coal-Formation. 



Devonuift 



Silurian 



Cambrian . 



{Upper. 

 Middle 

 Lower. 



^ Upper. 



X Lower, or 



(Silico-Cambrlan. 



{Upper. 

 Middle. 

 Lower. 



Hurcnian . ^^ll%\ 



I /Upper or 



Eozoic. < ^ iNorian. 



Laurentian . » Middle, 



A^e of Reptiles 

 and Birds. 



(Earliest 

 Murbupial 

 Mammals. ) 



(Earliest 

 true Reptiles.) 



Age of 

 A mphibians 

 and Fishes, 



Age of 



Mollusks, 



Corals, and 



Cmstaccans. 



I Lower, or 

 \Boii 



tBojian. 



Age of 



Protozoa. 



(First animal 



remains.) 



Age of 



A ngiosperms 



and Palms. 



(Earliest 



Modern Trees.) 



Age of 



Cycads and 



Pines. 



Age of 



Acrogens and 



Gyninosperms. 



(Earliest 

 Land Plants.) 

 Age of Algee. 



Indications of 



Plants 



not determinable. 



