Fossil1: Virgil O. Butler displays some of the fossils he found in the South Dakota
Badlands between 1931 and 1934. Many of these fossils have been donated to the
Museum of Geology at South Dakota Tech, an engineering and science university in
Rapid City, S.D.
Fossil2: Kay Seed (right), Virgil O. Butler’s daughter, and her husband, Darold Seed,
with the fossils the family donated to create the Virgil O. Butler Collection at the
Museum of Geology at South Dakota Tech in Rapid City, S.D.
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Devereaux Library. South Dakota School of Mines and Technology.