May 9, 1840
Mastodon bones are discovered in Missouri. Although the exact date of discovery is unknown, it was around this day that a farmer near current-day Imperial found large fossils that he wanted inspected.
The Missouri Leviathan
Mastodon bones are discovered in Missouri. Although the exact date of discovery is unknown, it was around this day that a farmer near current-day Imperial found large fossils that he wanted inspected.