Edmontosaurus Jaw in Sandstone Matrix- Wyoming

A fragment of Edmontosaurus jaw embedded in a sandstone matrix, recovered from the Lance Formation in Wyoming. This site is renowned for its abundance of Edmontosaurus fossils, often referred to as a vast hadrosaur graveyard, making it highly likely that unearthed specimens belong to this species.

The Lance Formation in Wyoming, a geological formation from the Late Cretaceous period, is known for its rich fossil content, including the remains of hadrosaurs, a group of duck-billed dinosaurs. Among the most intriguing discoveries from this region are the fossilized tendons of these hadrosaurs, which offer unique insights into the anatomy and physiology of these prehistoric creatures.

Edmontosaurus annectens.

late Cretaceous

Wyoming

Lance

6.5"x4.5"