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Dilophosaurus Fact SheetStegosaurus Fact SheetToday's featured page: Fish Printouts

More Dinosaur Fact Sheets
Dilophosaurus Fact Sheet
Dinosaur/Paleontology Dictionary
NAME: Meaning - Dilophosaurus means "double-crested lizard"
Pronounced - die-LOF-oh-SAWR-us
Named By - Samuel P. Welles
When Named - 1970
DIET: Carnivore (meat-eater) - it ate smaller plant-eating dinosaurs.
SIZE: Length - 20 feet (6 m) long
Height - 5 feet (1.5 m) tall at the hips
Weight - 650 to 1,000 pounds (300 kg to 450 kg)
WHEN IT LIVED: Early Jurassic period, about 201 to 189 million years ago
WHERE IT LIVED: Fossils have been found in Arizona, USA, North America. Another specimen may have been found in China, Asia.
FOSSILS: The first fossil Dilophosaurus skeleton was found in Arizona, USA, in the 1940's. Three Dilophosaurus fossils have been found in the USA, all found together in Arizona. They are now at the University of California's Museum of Paleontology at Berkeley, USA. Fossils similar to those of Dilophosaurus have been found in many places around the world.
  • Kingdom Animalia (animals)
  • Phylum Chordata (having a hollow nerve chord ending in a brain)
  • Class Archosauria (diapsids with socket-set teeth, etc.)
  • Order Saurischia - lizard-hipped dinosaurs
  • Suborder Theropoda - bipedal carnivores
  • Family Ceratosauria (also called Coelophysoidea - the most primitive theropod group, which includes Dilophosaurus and Segisaurus)
  • Genus Dilophosaurus
  • Species wetherilli (type species: Welles, 1954 - this species was originally called Megalosaurus wetherilli)
Dilophosaurus was a fast-moving bipedal predator that had a double crest on its head. Although it was depicted as spitting poison in the Jurassic Park movie, there is no fossil evidence that it did so (it was also pictured far too small, with an incorrect skull, and with a frill it did not have).

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