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BULLETIN 103, UNITED STATES NATIONAL MUSEUM. 



TABULAR SUMMARY OF SOME OF THE IMPORTANT EVENTS IN THE GEOLOGIC HISTORY 

 OF THE WEST INDIES AND CENTRAL AMERICA — Continued. 



(Rhaetlc) 



Tiiassiol Upper 

 iuassic (Karnic) 



Middle 

 I Lower 



land conditions in latest Triassic or earliest Jurassic. 



Submergence in central Mexico (Zacatecas) with probable interoceanic con- 

 nection. 



Probable land conditions throughout Mexico and Central America. 



Probable land conditions throughout Mexico and Central America. 



Late Paleozoic. 



Formation of the major tectonic axes of Central America and the initial east and 

 west axes of the Greater Antilles. 



a Mesozoic history of Central America, Mexico, and the West Indies, by T. W. Stanton. 



o 





