Natural History, including Gorgosaurus

Natural History, including Gorgosaurus

View full screen - View 1 of Lot 208. Allosaurus Hand Claw.

Allosaurus Hand Claw

No reserve

Auction Closed

July 28, 03:27 PM GMT

Estimate

15,000 - 20,000 USD

Lot Details

Description

Allosaurus Hand Claw

Allosaurus jimmadseni

Late Jurassic (approx. 150 million years ago)

Morrison Formation, Washakie County, Wyoming


5½ inches (13.9 cm), 9 by 3¾ by 2 inches (22.9 x 9.5 x 5 cm) on matrix. Metal base measures 6 by 4 inches (15.2 x 10.2 cm).


Hand (manus) claw belonging to an adult Allosaurus. The tip section of the claw is restored with the rock matrix and impression (or "trace fossil") preserved, technically making this specimen two fossils in one.

Stalking stegosaurs, ornithopods, and even small sauropods, the 30 foot (9 meter) long apex predator Allosaurus used strong arms, three manus claws, serrated teeth, and machete-like jaws to secure its spot atop the late Jurassic North American food chain. The powerfully built forelimbs of Allosaurus had three fingers per hand—as opposed to T. rex's two—terminating in large hooked and pointed claws. Morphology of the Allosaurus skeleton convincingly indicates that these hand claws were a vital adaptation in the killing, feeding, and survival of this Jurassic hunter.


Scientific debate continues to rage with respect to the hunting strategies these carnivores employed—some paleontologists believe Allosaurus was an intelligent, social creature that hunted in packs, while others theorize a more solitary existence. Either way, without the use of powerful, three-taloned hand claws like the beautiful specimen offered here, the acquisition of prey items would have proven vastly more difficult.