3.6" Fossil Hadrosaur (Edmontosaurus) Ungual w/ Stand - Montana

This is an ungual (claw bone) from a hadrosaur (Edmontosaurus annectens) that was collected from the Hell Creek Formation in Fallon County, Montana. It was found incomplete, requiring some significant gap fill restoration. The bone measures 3.6" long by 3.1" wide and comes with a custom metal display stand.

An ungual is a highly modified distal toe bone which ends in a hoof, claw, or nail. Elephants have ungual phalanges, as did the sauropods and horned dinosaurs.

Restoration can be found along both edges of the ungual with significant reconstruction along most of the rim. When viewing the side of bone that still has rock attached, the areas of restoration can be noted by the glossy appearance. Roughly 35% of this ungual has been restored.

Edmontosaurus is one of the largest Hadrosaurs, and one of the most widespread: fossil remainshave been found across western North America, from Colorado to northern Alaska. This large herbivore was about the same size as the contemporary predator Tyrannosaurus, reaching 39 feet in length and an average weight of about 6 tons. Named after Edmonton, the capital of the Canadian province of Alberta where its first fossils were discovered, Edmontosaurus was a gregarious terrestrial herbivore that ground up low-lying plant material with its large battery of ever-restoring teeth. Numerous skin impressions and mummified specimens show us that Edmontosaurus had scaly skin, and its forelimbs were enclosed in a fleshy "mitten" serving a purpose similar to a hoof. Edmontosaurus was a member of the Saurolophine clade of Hadrosaurs, meaning they had little to nonexistent crests on the backs of their skulls.

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.
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DETAILS
SPECIES
Edmontosaurus annectens
LOCATION
Fallon County, Montana
FORMATION
Hell Creek Formation
SIZE
3.6" long, 3.1" wide
CATEGORY
SUB CATEGORY
ITEM
#245948
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