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ZoomDinosaurs.com
ALL ABOUT DINOSAURS!
What is a Dinosaur? Dino Info Pages Dinosaur Coloring Print-outs Name That Dino Biggest, Smallest, Oldest,... Evolution of Dinosaurs Dinos and Birds Dino Myths

DILOPHOSAURUS
"Double-crested Lizard"

ANATOMY
Dilophosaurus Dilophosaurus was a speedy, slender, bipedal (walked on two legs), meat-eater that lived during the early Jurassic period. It was a theropod (a meat-eating dinosaur) about 20 feet (6 m) long, about 5 feet (1.5 m) tall at the hip, and weighing about 650 to 1,000 pounds (300 kg to 450 kg).

Dilophosaurus had a dewclaw.
It had two thin, bony, almost semi-circular crests on its head; these may have been for mating displays. It had short arms with three-fingered hands and strong legs with four-toed feet (one toe was a dewclaw ). Both fingers and toes had claws. It had hollow bones and an S-shaped, curved neck.

Dilophosaurus


WHEN DILOPHOSAURUS LIVED
Dilophosaurus lived about 201 to 189 million years ago, during the early Jurassic period.

Among its contemporaries in North America during this time, all smaller than Dilophosaurus, were: BEHAVIOR
Dilophosaurus may have roved in packs, since three specimens were found together in Arizona, USA.

DIET
Dilophosaurus was a carnivore, a meat eater. It had loosely attached jaws which would have made killing animals with its teeth difficult. It must have killed with its clawed arms and legs, and/or scavenged carcasses.

LOCOMOTION
Dilophosaurus walked on two muscular legs and was a relatively fast runner, leaving bird-like footprints on land. Some of its fossilized footprints are only impressions of the claw-tips. This indicates that Dilophosaurus may have been walking in water at the time. Dilophosaurus' leg length was about 1.65 m; it's stride length (distance between footprints) was about 2.13 m.

DISCOVERY OF FOSSILS
The first fossil Dilophosaurus skeleton was found in Arizona, USA, in the 1940's. Dilophosaurus was named in 1970 by Samuel P. Welles. There have been three Dilophosaurus fossils found in the USA, all found together in Arizona. They are now at the University of California's Museum of Paleontology at Berkeley, USA. Another specimen may have been found in China.

CLASSIFICATION
Dilophosaurus belonged to the:

DILOPHOSAURUS ACTIVITIES AND LINKS
Dilophosaurus brief fact sheet or a printable version

Dilophosaurus Printout

K-3 Dilophosaurus Printout

A Dilophosaurus word hunt activity - For second and third graders.

The first Dilophosaurus discovered, at the UCMP, Berkeley.



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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