Juvenile Hadrosaur Dentary (Jaw Bone), Alberta (disposition #001590)

This partial juvenile hadrosaur dentary from Alberta preserves a section of the lower jaw (mandible). A series of prominent, closely spaced grooves remains visible across the specimen, marking the positions that once accommodated the teeth of its dental battery. The small size of this fossil indicates the individual was a juvenile and not a full grown adult.

Hadrosaurs, commonly known as duck-billed dinosaurs, possessed highly specialized jaws containing tightly packed groups of teeth. Successive replacement teeth developed beneath the working teeth, maintaining a surface for processing plant material as older teeth wore down. This fragment offers a clear view of the supporting jaw structure behind that remarkable feeding system.

From the Harvey Negrich Collection, this juvenile jaw fragment provides an engaging connection to the anatomy of a growing hadrosaur. Its recognizable dental-battery structure makes it a distinctive addition to an Alberta dinosaur collection or an educational display focused on dinosaur feeding adaptations.

Legal Status: This specimen is legally available for private ownership and resale under Alberta Disposition Certificate #001590. A copy of the disposition documentation will accompany the specimen. Learn more about Alberta fossils and the disposition process.

Family: Hadrosauridae indet. (hadrosaur; exact species undetermined)
Age: Late Cretaceous (Campanian or 74.8 - 77.5 million years ago)
Formation: Dinosaur Park or Oldman formation (Belly River/Judith River Group)
Locality: North of Brooks, Alberta, Canada
Dimensions: 7 x 5 cm
Provenance: Harvey Negrich Collection
Alberta Disposition Certificate Number: 001590 (specimen #HN283) issued July 7, 2026