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Date: 1999-10-06 12:11:57Greater Yellowstone Ecosystem Paleontology Yellowstone National Park Trilobite Point Yellowstone River Erling Dorf Gallatin Range Mount Holmes Fossil Geography of the United States Wyoming Montana | National Park Service Department of the InteriorAdd to Reading ListSource URL: www.nature.nps.govDownload Document from Source WebsiteFile Size: 1,19 MBShare Document on Facebook |