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Swain Quarry of the Fort Union Formation, Middle Paleocene (Torrejonian), Carbon County, Wyoming, Geologic Setting and Mammalian Fauna

J. Keith Rigby

出版	Evolutionary Monographs, University of Chicago, 1980
URL	http://books.google.com.hk/books?id=3YYgAQAAIAAJ&hl=&source=gbs_api