Rock Identifier
Dinosaur Claw (Dromaeosaurid) (Dromaeosaurid ungual (potential Deinonychus or Velociraptorine)) — fossil
fossil

Dinosaur Claw (Dromaeosaurid)

Dromaeosaurid ungual (potential Deinonychus or Velociraptorine)

Deeply curved, sickle-shaped, pointed tip, presence of a vascular groove on the side, basal articulation surface intact. Generally high hardness (fossilized bone), brownish-tan to yellowish hue.

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Physical properties

Deeply curved, sickle-shaped, pointed tip, presence of a vascular groove on the side, basal articulation surface intact. Generally high hardness (fossilized bone), brownish-tan to yellowish hue.

Formation & geological history

Formed through permineralization of theropod dinosaur bone, typically from the Late Cretaceous period (approx. 70-100 million years ago) in fluvial or lacustrine sedimentary environments.

Uses & applications

Primarily for scientific research, museum display, and private fossil collecting. High educational and historical value.

Geological facts

Dromaeosaurids used these specialized 'sickle claws' on their second pedal digits for subduing prey; they are among the most iconic fossils of the theropod family.

Field identification & locations

Identified by the distinct arc and the lateral groove used for blood vessel and nerve attachment in life. Found in fossil-rich formations such as the Hell Creek or Gobi Desert. Real fossils are heavy/stone-like; replicas are light plastic or resin.