Fossil Mammalia Of The White River Beds Of Montana (1902) is a comprehensive book written by Earl Douglass that delves into the study of mammalian fossils found in the White River Beds of Montana. The book provides a detailed analysis of the various species of mammals that lived in this region during the Eocene epoch, including horses, rhinoceroses, and rodents. Douglass also discusses the geological history of the area, providing insight into the...