Three new provincial time-stratigraphic units are proposed: the Seldovian, Homerian and Clamgulchian Stages. Rocks belonging to these three stages are recognized and distinguished from one another primarily by fossil plants.
Record details
Physical Description:iii, 29 p. : ill., maps (2 leaves of plates in back pocket); 28 cm. print
Publisher:Washington, D.C., U.S. Gov't. Printing Office, 1966.