1.15" Ceratodus Tooth Plate - Extinct Lungfish

This is a mouth plate of the extinct lobe-finned lungfish, Ceratodus. It's Lower Cretaceous in age and comes from the Kem Kem Basin region of Morocco. The closest living relative of Ceratodus is the Queensland lungfish (Neoceratodus forsteri), of North-eastern Australia, which is considered a ‘living fossil’.