Cretaceous Plants from Southwestern Colorado
Roland W. Brown
Cretaceous Plants from Southwestern Colorado Image Cover
Publisher:USGS
Place Published:Washington, DC
Genre:Paleontology
Series:Professional Paper 221D
Pages:21
Format:Paperback
Release:1950
Comments: Shorter Contributions to General Geology, 1949, pages 45-66.

Summary: A study of fossil plants useful in determining the probable boundary between the Lower and Upper Cretaceous deposits.