12" Cretaceous Crocodile Rib Section - Hell Creek Formation

Cretaceous Crocodile Rib Section - Hell Creek Formation #120060

This is a 12.0" fossil crocodile rib section from the Hell Creek Formation of Bowman County, North Dakota. It its the proximal end that engages the vertebra. It has a number of repaired cracks and has areas of remaining substrate from which it was removed. This would be a nice project for someone wanting to try their hand at specimen preparation.

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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