Large, Exquisite Edmontosaurus Duckbill Dinosaur Maxilla Section

Edmontosaurus annectens (duck bill dinosaur) Maxilla Jaw Section

Class Sauropsida, Superorder Dinosauria, Order Ornithischia, Suborder Cerapoda, Superfamily Hadrosaurodea, Family Hadrosauridae, Subfamily Hadrosaurinae (genus Edmontosaurus, Lambe, 1917)

Geological Time: Late Cretaceous (70 million years ago)

Size: 37.5 cm in length by 13 cm high by 10 cm wide (14 3/4 x 5 1/8 X 3 15/16”)

Fossil Site: Hell Creek Formation, Perkins County, Montana

Fossil Code: PFV170

Price: $3100.00

Edmontosaurus Dinosaur FossilDescription: This large solid jaw section is in a wonderful state of preservation. The bone of the jaw shows amazing detail, including cellular structures. The teeth are life-like with a deep chocolate color. There are approximately 36 mature teeth showing. You’ll notice that the inner and outer sections of the teeth show different tooth types, sizes and growth stages. Note the ornamentation lines of the jaw. Upon discovery, it was found in a few, large broken segments. A highly qualified and professional preparator performed the curation.

Background: The hadrosaurs are known as the duck-billed dinosaurs due to the similarity of their head to that of modern ducks. In some species, most notably Edmontosaurus Dinosaur Skull CastAnatotitan, the whole front of the skull was flat and broadened out to form a beak, ideal for clipping leaves and twigs from the forests of Asia, Europe and North America. However, the back of the mouth contained literally thousands of teeth suitable for grinding food before it was swallowed. Hadrosaurs, like their iguanodontian cousins, had a rudimentary dental specialization analogous to incisors and molars. Scientists hypothesize that this was a critical characteristic for the success of Edmontosaurus compared with sauropods that were still largely dependent on gastroliths for grinding their food.

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