.7" Fossil Dinosaur Caudal Vertebra - Hell Creek

Fossil Dinosaur Caudal Vertebra - Hell Creek #220671

This is a caudal vertebra of a dinosaur. It's .7" long and comes from the Hell Creek Formation of Bowman County, North Dakota. The size makes me think that it's a theropod vertebra, however the processes have broken off, making it difficult to provide a definitive identification.

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.

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