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Excavation of brontosaurus tail in Morrison Formation (light gray siltstone). Elk Springs quadrangle, Moffat County, Colorado. June 9, 1976. Album caption: Dinosaur, Elk Spring Quad, 6/9/76. No index card.


    map background search result map search result map Excavation of a brontosaurus tail, Morrison Formation, Moffat County, Colorado. 1976. Excavation of a brontosaurus tail, Morrison Formation, Moffat County, Colorado. 1976.