Our vanishing past

Our vanishing past

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Colorado has several interpreted sites that feature various kinds of fossils and other sites under special management ... Permian-age amphibians and reptiles left their tracks along 250-million-year- old tidal flats in the Lyons Sandstone near ... 210-million-year-old) fish and land vertebrates in southern Colorado show that freshwater lakes and dry land existed there. ... and Paleocene-age (63- to 55- million-year-old) vertebrate fossils from the Denver Formation at Colorado Springs andanbsp;...

Title:Our vanishing past
Author:United States. Bureau of Land Management. Cultural and Fossil Resources and Tribal Coordination Group
Publisher: - 2002


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