(definition) by Webster 1913 Tue Dec 21 1999 at 22:23:48

Cats"kill pe`ri*od (?). Geol.

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.

 

© Webster 1913.

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