![]() ![]() The neck was long, and its vertebrae were hollow, and very light. Most of the teeth had serrations at their front and back edges. Those in the lower jaw were much smaller than those of the upper jaw. The teeth were long, curved, thin, and compressed sideways. The mandible was slender and delicate at the front, but deep at the back. ![]() It had a pair of longitudinal, plate-shaped crests on its skull, similar to a cassowary with two crests. The snout was narrow, and the upper jaw had a gap or kink below the nostril. It was slender and lightly built, and the skull was proportionally large, but delicate. Dilophosaurus was one of the earliest large predatory dinosaurs, though it was smaller than some later theropods. ![]() At about 7 meters in length, with a weight of about 400 kilograms. The genus name means "two-crested lizard". ![]()
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