Serrated, .45" Triassic Fossil Tooth - Chine Formation, Arizona

This is a .45" long fossil tooth collected from the Late Triassic Chinle Formation in St. Johns, Arizona. Both edges of this gorgeous tooth are serrated, with a denticle (serration) density of ~20 per 5mm. Unfortunately there isn't much material published on triassic teeth, so identifying a tooth such as this is more guess work than anything.

Comes with an acrylic display case.