8.6" Raptor Metatarsal With Stand - Judith River Formation, Montana

This is an 8.6" long fossil metatarsal (hand bone) of a theropod dinosaur, from the Judith River Formation of Montana. This bone lacks diagnostic markers enough to determine exactly which theropod species it belongs to. Using size as an indictor it is most likely that this bone is from Dromaeosaur (aka raptor)

This well preserved specimen has a few repaired cracks with small gap fills in the cracks. Comes with a custom metal display stand.

Dromaeosaurus albertensis, Canadian Museum of Nature, Ottawa, Ontario, Canada
Dromaeosaurus albertensis, Canadian Museum of Nature, Ottawa, Ontario, Canada
was a small genus of meat eating dinosaurs (raptors) that ripped flesh with its sickle claws and pulverized bone with a powerful bite. Its toothy grasp is suspected to be nearly three times as powerful as that of Velociraptor.

Dromaeosaurus lived during the Late Cretaceous period, sometime between 76.5 and 74.8 million years old, in the western United States and Alberta, Canada. Fossil teeth dated to 65.5 million years old may possibly belong to the genus, though these teeth are one of many mysteries that surround Dromaesaurus.

This little beastie’s name means 'running lizard'. Dromaeosaurus was a small carnivore, about 2 m (6 ft 7 in) in length,15 kg (33 lb) in weight, and stood 1.5 feet tall at the hips. It darted around in a world of other small theropods, ceratopsians, ankylosaurs, 30 ft hadrosaurs, and both small and massive tyrannosauroids.

In the sediments for which they are found, there is selection against the preservation of small theropods. Consequently, little is known about their lifestyle except what can be gleaned from the stories which their teeth reveal. We do know that they frequently shed teeth as they attacked and frenzied over their meals.

Cast of Demaeosaurus foot showing sickle like claws
Cast of Demaeosaurus foot showing sickle like claws
The genus is related to Utahraptor, as may be evident by its deadly toe claw on each foot. Dromaeosaurus varies from its relatives in some traits. It has a short, massive skull, a deep mandible, and robust teeth. The teeth tend to be more heavily worn, suggesting that its jaws were used for crushing and tearing and the giant toe claw may have had other primary uses. These details support a scavenger lifestyle, but as already mentioned, there are few absolute conclusions regarding this robust little theropod.

Hill County, Montana
Judith River Formation
8.6" long
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