The jawbone was determined by researchers from the New York State Museum and SUNY Orange to be from a mastodon, an ancient elephant-like species that went extinct around 10,000 years ago.

A homeowner in New York uncovered a complete mastodon jaw in their backyard in what officials are calling a "remarkable discovery." The jaw of the extinct mammal, which was similar to an elephant ...

For the first time in 11 years, a complete mastodon jaw has been unearthed in the state of New York. What makes this discovery even more remarkable is that the prehistoric specimen turned up in ...