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24" Fossil Hadrosaur (Edmontosaurus) Right Humerus - South Dakota
This is a 24" long Hadrosaur (Edmontosaurus) right humerus bone, collected from the Hell Creek Formation in South Dakota. This specimen comes with the pictured display stand.
The ulnar and radial condyles are intact, though they required some crack repair in spots. There is a large repaired crack that runs through the distal metaphysis which required gap fill restoration. There are dozens of fractures throughout the diaphysis that required crack repair and gap fill restoration to piece back together. The deltopectoral crest had broken away from the humerus, requiring restoration to reattach it to the rest of the bone. The proximal end of the bone also required gap fill restoration in spots where the bone crumbled away. The entire humerus has been painted to color match the restoration.
The ulnar and radial condyles are intact, though they required some crack repair in spots. There is a large repaired crack that runs through the distal metaphysis which required gap fill restoration. There are dozens of fractures throughout the diaphysis that required crack repair and gap fill restoration to piece back together. The deltopectoral crest had broken away from the humerus, requiring restoration to reattach it to the rest of the bone. The proximal end of the bone also required gap fill restoration in spots where the bone crumbled away. The entire humerus has been painted to color match the restoration.
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.
The Hell Creek Formation
Renowned for both its age and rich sedimentary layers, the Hell Creek Formation is one of the most intensively studied fossil-bearing regions on Earth. To date, scientists have documented 158 genera of animals and 64 genera of plants from its rocks, with new finds emerging regularly. Beyond iconic dinosaurs such as tyrannosaurs, ceratopsians, and hadrosaurs, the formation has produced an extraordinary array of life, including amphibians, reptiles, lizards, snakes, turtles, fish, sharks, birds, and early mammals. Together, these fossils provide the most complete picture of the ecosystems that thrived just before the Cretaceous–Paleogene extinction event.
Renowned for both its age and rich sedimentary layers, the Hell Creek Formation is one of the most intensively studied fossil-bearing regions on Earth. To date, scientists have documented 158 genera of animals and 64 genera of plants from its rocks, with new finds emerging regularly. Beyond iconic dinosaurs such as tyrannosaurs, ceratopsians, and hadrosaurs, the formation has produced an extraordinary array of life, including amphibians, reptiles, lizards, snakes, turtles, fish, sharks, birds, and early mammals. Together, these fossils provide the most complete picture of the ecosystems that thrived just before the Cretaceous–Paleogene extinction event.
SPECIES
Edmontosaurus annectens
LOCATION
Harding County, South Dakota
FORMATION
Hell Creek Formation
SIZE
Bone measurements 24" long
CATEGORY
SUB CATEGORY
ITEM
#145811
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