This Specimen has been sold.
1.69" Fossil Phytosaur (Machaeroprosopus) Tooth - New Mexico
This is a large, 1.69" Phytosaur (Machaeroprosopus gregorii) tooth that was collected from the Bull Canyon Formation of New Mexico. This tooth was found in pieces and has been repaired glue. There are some portions of the tooth that are missing.
Phytosaurs are members of the order Phytosauria. These were semiaquatic, crocodile-like reptiles characterized by long snouts, conical teeth, short legs and long, low slung bodies. They had skin armored with scale like scutes. It is not clearly understood when Phytosaurus evolved. A number of apparently antecedent species have been found in the fossil record but their relationship to Phytosaurs is still being debated. Phytosaurus disappears from the fossil record during the Triassic- Jurassic Extinction, about 200 million years ago.