7" Juvenile Dinosaur (Thescelosaurus?) Femur Bone - Montana

This is a 7" long, juvenile dinosaur (Thescelosaurus garbanii?) femur (upper leg) bone from the Hell Creek Formation in Dawson County, Montana.

Comes with a riker case for display.

There are several repaired cracks through the bone, some of which required gap fill restoration. Both diaphyses are weathered in spots and incomplete, making it difficult to provide an accurate species identification.

Thescelosaurus was a small ornithopod dinosaur that appeared at the very end of the Late Cretaceous period in North America. Many specimens' preservation and completeness indicate that Thescelosaurus may have preferred to live near streams.

This bipedal ornithopod is known from several partial skeletons and skulls, all of which indicate adult lengths between 2.5 and 4.0 meters (8.2 to 13.1 feet) on average. It had sturdy hind limbs, small wide hands, and a head with an elongated pointed snout. Their teeth and jaw morphologies suggest a primarily herbivorous diet.

An artist's reconstruction of Thescelosaurus. Creative Commons License
An artist's reconstruction of Thescelosaurus. Creative Commons License

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.
Thescelosaurus garbanii?
Dawson County, Montana
Hell Creek Formation
7" long
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