0.7" Tyrannosaur Fossil Premax Tooth Cretaceous Dinosaur Judith River FM MT COA

Location: Judith River Formation, Hill County, Montana (Private Land Origin)

Weight: 0.3 Ounces 

Dimensions: 0.7 Inches Long, 0.3 Inches Wide, 0.2 Inches Thick

Comes with a Free Display.

Comes with a Certificate of Authenticity.

The item pictured is the one you will receive.

This is a real fossil tooth.

Probably an excellent Gorgosaurus tooth, based on the size and base height of the tooth cross-section

Albertosaurus, Gorgosaurus, and Daspletosaurus

During the Late Cretaceous period, northern North America was dominated by several early Tyrannosaur predators, including Albertosaurus, Daspletosaurus, and Gorgosaurus. Fossils of these large theropods are found in the Judith River Formation in Montana and formations across Alberta, Canada. The Judith River Formation, approximately 70 million years old, predates the Hell Creek Formation, famous for Tyrannosaurus rex, by about five million years. These tyrannosaurs were early relatives of T. rex and, while smaller than their iconic descendant, were highly effective predators.

Daspletosaurus and Gorgosaurus were similar in size, coexisting at around 30 feet in length and weighing up to 5,000 pounds, making them apex predators of their ecosystems. Albertosaurus reached a similar length but had a lighter frame, with a maximum weight near 4,000 pounds, and likely evolved slightly later than its Judith River Formation relatives.

The teeth of Albertosaurus, Daspletosaurus, and Gorgosaurus share similar morphology, making isolated identification challenging. Daspletosaurus, larger and closely related to Tyrannosaurus rex, had teeth more akin to T. rex, whereas Albertosaurus teeth were smaller, slender, and optimized for slicing prey.

These exceptionally preserved Late Cretaceous tyrannosaur fossils and teeth offer important insight into the evolution of Tyrannosaurus rex, illustrating the diversity, predatory adaptations, and dominance of northern North America’s apex predators.