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Dinosaur Info Pages EnchantedLearning.com
BARYONYX
meaning "Heavy claw"
Baryonyx Fact Sheet
Baryonyx Printout

ANATOMY
Baryonyx Baryonyx was an unusual theropod with huge 1-foot (30.5-cm) long claws on its hands, and long, narrow, crocodile-like jaws with 96 small, serrated teeth (this is 1.5 times the number of teeth that most other theropods had). It had a small crest on its snout. Baryonyx had a long, straight neck (unlike other theropods, who had s-shaped necks) and a long tail. Its low-slung body was supported by 2 large rear legs and 2 slightly smaller arms. It was a carnivorous dinosaur from the early Cretaceous period, about 125 million years ago. This predator was about 32 feet (9.5 m) long, weighing perhaps over 2 tons.

WHEN BARYONYX LIVED
Baryonyx lived during the early Cretaceous period, about 125 million years ago, in what is now England.

INTELLIGENCE
Baryonyx was a theropod, whose intelligence (as measured by the relative brain to body weight, or EQ) was high among the dinosaurs.

DIET AND TEETH
Baryonyx was a carnivore, a meat eater with huge claws and many small, sharp teeth in powerful, crocodile-like jaws. It had 64 teeth in the lower jaw but only 32 teeth in the upper jaw (the upper teeth were larger than the lower teeth).

Baryonyx was a large predator that ate fish. A fossilized Baryonyx was found with a fossilized meal in its stomach; this stomach contained fish scales, fish bones, and some partially digested bones of a young Iguanodon. So far, Baryonyx is the only known dinosaur that ate fish. It may have waded in rivers and shallow seas to catch fish (just as some modern-day bears do).

LOCOMOTION
Baryonyx may have walked on two or four muscular legs. Although the front legs shorter than the rear legs, they were not that much shorter.

DISCOVERY OF FOSSILS
Baryonyx was found in 1983 in a clay pit in Surrey, England, by the British amateur fossil hunter William Walker. It was the first carnivorous (meat-eating) dinosaur found in England. About 70% of this dinosaur's skeleton was found. Baryonyx was found 30 miles south of London, England, in 1983. It was named in 1987 by British paleontologists Angela C. Milner and Alan J. Charig.

CLASSIFICATION
Baryonyx was an early Cretaceous Saurischian ("lizard-hipped") dinosaur. It was a very unusual theropod. It was a tetanuran belonging to the superfamily Spinosauroidea (related to Spinosaurus) and a Spinosauridae. The type species is B. walkeri.

BARYONYX ACTIVITIES/PRINTOUTS
10 questions about Baryonyx; A Find It! Quiz

Baryonyx Coloring Printout

Baryonyx Fact Sheet or a printable version.



Information Sheets About Dinosaurs
(and Other Prehistoric Creatures)

Just click on an animal's name to go to that information sheet. If the dinosaur you're interested in isn't here, check the Dinosaur Dictionary or the list of Dinosaur Genera. Names with an asterisk (*) were not dinosaurs.
How to write a great dinosaur report.

For dinosaur printouts, click here.

For brief dinosaur fact sheets, click here.




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