Orthoceras Ammonite Fossil Devonian Period lot of 5Heartland Artifact Auctions4.7(872)$10Mar 08, 2026
6"x5.1/2" Ammonite Fossil Very Large Found In TexasHeartland Artifact Auctions4.7(872)$10Mar 08, 2026
2 RIBBED AMMONITE FOSSILS FROM THE JURASSIC PERIODLewis & Maese Antiques & Auction4.4(547)$50Mar 08, 2026
4" Polished Ammonite Fossil 231 Grams Translucent SpecimanHeartland Artifact Auctions4.7(872)$10Mar 08, 2026
