Watch List notes:

Huge mastodon tooth, 30,000(+/-) years old, found in the Aucilla River (north Florida). 1346 grams, 6-1/2" x 3-1/2" x 5" This massive molar is the one of the largest and best-preserved specimens we know of, glossy dark brown in color (not black), intact except for one root, truly museum quality.

Estimate: $200