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Hypacrosaurus - Dentary (lower jaw)

SKU
DH32
In stock
$1,150.00
Overview

A rare High Quality juvenile Hypacrosaurus stebingeri lower jaw (dentary) section from the late Cretaceous (Two Medicine Fm.) of North America. This jaw section contains ~ 3 dozen exposed teeth. Hypacrosaurus is a lambeosaur (crested) hadrosaur or "duck-bill" dinosaur found in the Two Medicine formation. They possessed ~300 teeth that were in columns of five teeth each which acted as conveyor belt to maintain a large chewing surface to cut and grind their food. This specimen is a section of the lower jaw includes 20 columns of teeth. Bone quality is very good. Cracks are repaired. Legally collected on private land in the Two Medicine Fm., Browning, Montana. An excellent collector's quality Hypacrosaurus jaw section.  Authenticity guaranteed. A rare piece!

DH32        SIZE: 5-3/4" length  x  4-1/4"    

Note - Adding 22 Hadrosaur /Edmontosaurus bones & claws in April 2022.     Link to Edmontosaurus fossils catalog

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Edmontosaurus was one of the largest members of the hadrosaur family which lived during the late Cretaceous in North America. These were large dinosaurs which grow up to 50 feet in length and weighed up to 10,000 lbs. Edmontosaurus was a herbivore who had a large bill-like snout that was able to nip and tear vegetation, and their jaws were filled with rows of large teeth used to grind vegetation. They appear to live in herds and they would be prey for Tyrannosaurus rex. Edmontosaurus had little defense when attacked by T. rex. They are believed to have good speed for their size and a herd of large adults may have been have been threatening to a T. rex. There are two species of Edmontosaurus and in the Hell Creek formation, Edmontosaurus annectens was the species present.

Today, we find fossilized Edmontosaurus annectens teeth, unguals (claws), and bones in the Hell Creek Formation.