It's not often that you find the remains of a prehistoric animal right in your own backyard. That's what happened on the Christensen farm, near Greenfield, Indiana, in 1976. As workers used machinery to create a pond, they accidentally scooped up the skull, teeth, and some rib bones of a mastodon. The mastodon is an extinct relative of the modern elephant that roamed the earth more than 10,000 years ago. All of this happened near the town of Greenfield, Indiana. The bones were excavated by a cooperative effort of the IUPUI Department of Geology, the Indiana Amateur Archaeological Society and The Children's Museum.
The Children's Museum of Indianapolis
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Mastodon -- Indiana
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