8.8" Hadrosaur (Edmontosaur) Dorsal Vertebra - Montana

This is a body vertebra of a Hadrosaur (Edmontosaurus) from the Hell Creek Formation of Glendive, Montana. Based off of the transverse and spinous processes, it likely came from a portion of the spine that was near the cervical vertebrae. There are fractures through the centrum, however i don't see any indication that these resulted in any repair or restoration. There are repaired cracks and some restoration between the centrum and vertebral arch. The right anterior point of articulation has been restored, however the left anterior point of articulation is still intact and hasn't undergone any repair or restoration. The anterior portion of the spinous process has been restored. Both of the transverse processes have undergone restoration and crack repair to reattach them to the lamina. The right transverse process has restoration to its distal end. The posterior points of articulation are still in great condition with no restoration.

The entire vertebra measures 8.8 x 7.4 x 4.6". This specimen is accompanied by a custom metal display stand.

Hadrosaurs are frequently referred to as duck-billed dinosaurs and are members of the Ornithischian family Hadrosauridae. They were fairly common herbivores which 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.

Because of its age and sedimentary composition, the Hell Creek Formation has become one of the most paleontologically studied areas in the world. 158 genera of animals and 64 genera of plants are known from the formation and new discoveries are made frequently. In addition to Tyrannosaurs, Ceratopsids, and Hadrosaurs, the formation has yielded remains of amphibians, reptiles, lizards, snakes and turtles, fish and sharks, avian and non-avian dinosaurs, and mammals. The Hell Creek Formation gives the most complete understanding of the environment just before the Cretaceous-Paleogene extinction.
Edmontosaurus sp.
Glendive, Montana
Hell Creek Formation
8.8 x 7.4 x 4.6"
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