Mastadon americanus, Newburg Mastadon, 1900-1935.
Local number: SIA2011-1425
Summary: RU 424 Box 7 Latern Slide Box 18. Mastadon americanus, Newburg Mastadon, 1900-1935. Mammoths, mastadons, and other large mammals from the Late Cenozoic were collected in Idaho and on display at the Smithsonian Institution, 1900-1935. Image taken from lantern slides found in the Division of Vertebrate Paleontology Records.
Repository: Smithsonian Institution Archives