10.5" Hadrosaur (Hypacrosaur) Mandible - Full Tooth Battery!

This is a gorgeous Hadrosaur (Hypacrosaurus sp.) mandible (lower jaw) from the Two Medicine Formation of Glacier County, Montana. It would have been from the right side of the skull on an adult hadrosaur. The entire piece is 10.5" long and has a full battery of nicely preserved teeth still in place. There appear to be repaired cracks throughout the specimen, with some restoration at the posterior most end of the mandible.

Hypacrosaurus is a very large, Lambeosaurini Hadrsosaur that would have been almost as large as the Tyrannosaurs that it lived alongside. Like Corythosaurus, it had a tall, hollow, rounded crest, although not as large and straight. It is known from the remains of two species that spanned 75 to 67 million years ago in the Late Cretaceous of Alberta, Canada, and Montana, United States, and is the latest hollow-crested duckbill known from good remains in North America. It is estimated to have been around 9.1 meters (30 feet) long and to have weighed up to 4-5 tons.

 Hypacrosaurus drawing by Wikipedia user debivort. Creative Commons License
Hypacrosaurus drawing by Wikipedia user debivort. Creative Commons License

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DETAILS
SPECIES
Hypacrosaurus sp.
LOCATION
Glacier County, Montana
FORMATION
Two Medicine Formation
SIZE
10.5" long, 5.2" tall
CATEGORY
SUB CATEGORY
ITEM
#129342
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