Top Quality Edmontosaurus Vertebrae - 11.5" Tall

This is a very well preserved dorsal vertebrae of a type of Hadrosaur, Edmontosaurus annectens. It is large at 11 1/2 inches tall and the processes are intact. As can be expected on delicate bone like this there have been some repaired cracks. The only restoration is a missing fragment in one of the cracks on a process. The outer "skin" of the bone is in great shape.

This specimen was found at a private ranch in Butte County, South Dakota earlier this summer. It comes from a quarry known as the "Tooth Draw Quarry" that has produced many high quality dinosaur teeth over the past several decades. In the Late Cretaceous some 65 million years ago, this quarry was located in a sub-tropical floodplain that would have been similar to modern day coastal Louisiana. It consists of 2 meters of alternating sandstone and gravel, representing a river channel lag deposit. It contains many isolated dinosaur teeth including T-Rex, Nanotyrannus, Raptors and Triceratops, but teeth of this high quality are rare finds.

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.
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DETAILS
SPECIES
Edmontosaurus annectens
LOCATION
Butte County, South Dakota
FORMATION
Hell Creek Formation
SIZE
11.5" Tall, 8 Inches Wide
CATEGORY
SUB CATEGORY
ITEM
#4708
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