14" x 11" Eocene Fish Mortality Plate – Knightia eocaena (Green River Formation)Heartland Artifact Auctions4.7(893)$10(1 bid)Jun 07, 2026
Dual-Species Fossil Fish Plate – Diplomystus dentatus & Knightia eocaena (Green River Formation)Heartland Artifact Auctions4.7(893)$10Jun 07, 2026
Eocene Period Multiple Knightia Fossil Fish Mortality PlateHeritage Gallery Auctions4.4(105)$225(2 bids)May 31, 2026
