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Dilophosaurus was one of the first large predatory dinosaurs on earth. Although this creature was almost twenty feet long it was slender in build and weighed less than half of a ton. A crest over each eye projected at an angle from the animal's forehead. These delicate crests were too fragile to withstand much abuse and were probably used for display.

Genus Name: Dilophosaurus ("double-crested lizard")
Type Species: * D. wetherilli (Welles, 1954)
Length: 20 feet (6 meters)
Weight: 700-1,000 pounds
Time: 200-190 million years ago (Early Jurassic)
Place: Arizona, China
Diet: meat-eater (carnivore)