Iridescent Ammonite Placenticeras (meeki) Cretaceous Pierre Shale South DakotaHouse of Craven Auction House4.3(14)$1,800(1 bid)Mar 19, 2026
Fossilized Skull of an Extinct Early Horse, Mesohippus BairdiKavanagh Auctions4.6(362)CA$50(1 bid)Mar 21, 2026
