- Foot Claw
- Cretaceous Age
- Cloverly Formation
- RARE specimen that measures approx. 2 1/2″ long. There has been a touch of restoration to the VERY TIP of the claw. The specimen will come in the 5.25″ x 6.25″ Riker Mount with Label as Shown.
Tenontosaurus (meaning “sinew lizard”) is a genus of medium- to large-sized ornithopod dinosaur. The genus is known from the late Aptian to Albian ages of the middle Cretaceous period sediments of western North America, dating between 115 and 108 million years ago. It was about 6.5 to 8 metres (21 to 26 ft) long and 3 metres (9.8 ft) high in a bipedal stance, with a mass of somewhere between 1 to 2 tonnes (1 to 2 short tons). It had an unusually long, broad tail, which like its back was stiffened with a network of bony tendons.
The first Tenontosaurus fossil was found in Big Horn County, Montana by an American Museum of Natural History (AMNH) expedition in 1903. Subsequent digs in the same area during the 1930s unearthed 18 more specimens, and four specimens were found during the 1940s. Despite the large number of fossil specimens, the animal was not named or scientifically described during this time, though Barnum Brown of the AMNH gave it the informal name “Tenantosaurus”, “sinew lizard”, in reference to the extensive system of stiffening tendons in its back and tail.[