2.5" Fossil Dinosaur Ungual (Claw) Bone - Montana

This is an ungual (claw bone) that was collected from the Hell Creek Formation on a private lease in Dawson County, Montana. There is restoration along both edges (lateral and medial) of the bone and much of the cortical bone has weathered away. There are multiple dinosaurs (Hadrosaurids, Ankylosaurids, Ceratopsids) from the Hell Creek Formation with ungual bones, so the restoration along the lateral and medial edges of the bone make it difficult to provide an accurate dinosaur identification.

The bone measures about 2.5" long by 2.5" wide and comes with an acrylic display stand.

Because of its age and sedimentary composition, the Hell Creek Formation has become one of the most paleontologically studied areas in the world. 158 genera of animals and 64 genera of plants are known from the formation and new discoveries are made frequently. In addition to Tyrannosaurs, Ceratopsids, and Hadrosaurs, the formation has yielded remains of amphibians, reptiles, lizards, snakes and turtles, fish and sharks, avian and non-avian dinosaurs, and mammals. The Hell Creek Formation gives the most complete understanding of the environment just before the Cretaceous-Paleogene extinction.
Unidentified Dinosaur
Dawson County, Montana
Hell Creek Formation
2.5" long, 2.5" wide
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