0.6" Saurornitholestes Raptor Serrated Tooth Fossil Judith River FM MT COA, Display Xiphactinus The presence of this species

The presence of this species indicates warmer water conditions than currently exist in the areas where it is found

It could have been that competition for the ecological niche of apex predator was so fierce that the only way Prognathodon could evolve and survive was by adapting to a different food source

While the exact cause is still unknown

The morphology of Diplomystus Dentatus

0.6" Saurornitholestes Raptor Serrated Tooth Fossil Judith River FM MT COA, Display Xiphactinus The presence of this speciesLocation: Judith River Formation, Hill County, Montana (Private Land Origin) Weight: 0. 3 Ounces Dimensions Tooth: 0. 6 Inches Long, 0. 3 Inches Wide, 0. 2 Inches Thick Comes with a Display Box. Comes with a Certificate of Authenticity. Saurornitholestes, meaning "lizard bird thief," is a genus of carnivorous dromaeosaurid theropod dinosaur from the late Cretaceous period, found in Alberta, Montana, and New Mexico. It includes two species: