Fossilized Mastodon Piece of Femur Leg Bone Almost Seventeen Pounds Proximal EndHess Fine Auctions4.5(245)$20(2 bids)4 days Left
Fossilized Skull of an Extinct Early Horse, Mesohippus BairdiKavanagh Auctions4.6(363)CA$50(1 bid)Mar 21, 2026
