- Species Type: Dilophosaurus Wetherilli
- Type of Dinosaur: Theropod
- Period: Early Jurassic
- Diet: Meat (carnivorous)
- Lifespan: Unknown
- Length: Up to 23 feet
- Weight: Up to 880 pounds
16 Dilophosaurus Facts for School
- The Dilophosaurus was a medium-sized dinosaur and one of the first large predatory dinosaurs.
- The Dilophosaurus was discovered in 1940, by Jesse Williams in Navajo County, Arizona, USA.
- The Dilophosaurus got its scientific name Dilophosaurus wetherilli in 1954, from Samuel P. Wells.
- The name Dilophosaurus means: “Two-Crested Lizard”.
- The name Dilophosaurus is pronounced: “dye-LO-fuh-SAWR-us”.
- The Dilophosaurus was part of a group of dinosaurs known as Theropods.
- They lived in the Early Jurassic Period around 193 million years ago.
- The Dilophosaurus holotype specimen (UCMP 37302) weighed 624 pounds and was 19.8 feet in length.
- The largest Dilophosaurus specimen ever recovered weighed 880 pounds and was 23 in length.
- The Dilophosaurus was an active carnivore and paleontologists believe they may have hunted dinosaurs as large as prosauropods.
- The Dilophosaurus had a total of 33 teeth based on fossilized skull remains.
- The Dilophosaurus had 16 teeth in its upper jaw and 17 in its lower jaw.
- In 2017, American paleontologists Milner and James Kirkland suggested some of the features of the Dilophosaurus indicated that it could have eaten fish and other marine animals.
- In 2017, Connecticut designated the Dilophosaurus as their state dinosaur.
- The Dilophosaurus was featured in the 1993 movie Jurassic Park, a move adaption of Michael Crichton’s 1990 novel Jurassic Park.
- The Dilophosaurus featured in the 1993 movie Jurassic Park was shown to be able to spit venom and sporting a foldable frill around its neck. In real life, the Dilophosaurus did not have a neck frill and could not spit venom. This was done to make it easy for the audience to tell the difference between the Dilophosaurus and the Velociraptor.
A photo of a Dilophosaurus exhibit at an unknown museum.
A sketch of what a Dilophosaurus might have looked like.
Credit: Natural History Museum, London
A diagram comparing the size of a human to a Dilophosaurus.
Credit: Prehistoric Wildlife
Additional Resources on Dilophosaurus
- Dilophosaurus – Wikipedia – Discover more about the Dilophosaurus on the Wikipedia website.
- Dilophosaurus Closeup – Get a closer view of the Dilophosaurus on the UCMP Berkeley Univesity website.
- Dilophosaurus – An Early Jurassic Icon – Find more facts about the Dilophosaurus on the Smithsonian website.
- How Dilophosaurus Became a Rock Star – Learn how the Dilophosaurus became a famous dinosaur.