27.7" Hadrosaur (Edmontosaurus) Ulna w/ Metal Stand - Wyoming

Hadrosaur (Edmontosaurus) Ulna w/ Metal Stand - Wyoming #229509

This is the ulna (distal arm) bone from the right arm of a hadrosaur (Edmontosaurus annectens), collected from our partner's lease on the Lance (Creek) Formation in Wyoming. It is accompanied by the pictured custom metal display stand.

Measurements:
Length - 27.7" long
Proximal width - 5.6" wide
Distal width - 3.3" wide
Height on stand - 28.4" tall

There are several repaired cracks through the diaphysis of this bone, most of which required some minor gap fill restoration where the bone crumbled away. There are repaired cracks through each epiphysis, however restoration is minimal and in the form of minor gap fill. Typically, areas of the epiphyses on dinosaur bones will require reconstruction restoration, though this is not the case with this specimen!

Hadrosaurs

are frequently referred to as duck-billed dinosaurs and are members of the Ornithischian family Hadrosauridae. They were fairly common herbivores that roamed Asia, Europe, and North America during the Upper Cretaceous Period. Many species of Hadrosaurs had distinctive crests on their heads, some of which had air-filled chambers that may have produced a distinct sound. These crests may have been used for both audio and visual display purposes.

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