About | Help  
  
 
WebsterComputerMath
 
ABCDEFGHIJKLMNOPQRSTUVWXYZ
 
CaCbCcCdCeCfCgChCiCjCkClCmCnCoCpCqCrCsCtCuCvCwCxCyCz
 

CATSKILL PERIOD

CATSKILL PERIOD - () The closing subdivision of the Devonian age in America. The rocks of this period are well developed in the Catskill mountains, and extend south and west under the Carboniferous formation. See the Diagram under Geology.