2.3" Ceratopsian Dinosaur Ungal - Judith River Formation

This is a 3.7" long fossil Ceratopsian dinosaur ungal (distal phalange bone) found in the Judith River Formation of Montana. The cortical bone has almost completely weathered away from this specimen. There are no repaired cracks or restoration.

Within the Judith River Group there are multiple Ceratopsid genera and species, so with just a single bone or tooth they are hard to differentiate and give a definitive identification.

The Judith River Formation is one of the most prolific sources of Late Cretaceous vertebrate fossils. At least sixteen Orders containing more than forty Genera are known from the formation. These include fish, amphibians, mammals, and insects in addition to the reptiles, avian and non-avian dinosaurs (birds). Among the more interesting specimens is Leonardo, a mummified and fossilized Brachylophosaurus. This is a Hadrosaur, a duck-billed dinosaur with amazing preservation of the soft tissues of the body. The pattern in the skin of the feet is even preserved. In addition to Leonardo, the Judith River Formation contained the remains of the theropod Hesperornis, the only known freshwater Hespernorthid, a penguin like bird.
Unidentified Ceratopsian
Hill County, Montana
Judith River Formation
2.3" long, 1.85" wide
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