Tyrannosaurus Rex Facts
- Species Type: Tyrannosaurus rex
- Type of Dinosaur: Theropod
- Period: Cretaceous
- Diet: Meat (carnivorous)
- Life Span: At least 28 years
- Length: Up to 43 feet
- Weight: 16 tons
18 Tyrannosaurus Rex Facts for Kids
- The first partial Tyrannosaurus Rex skeleton was discovered in 1900, by Barnum Brown in Wyoming, USA.
- The name Tyrannosaurus Rex means: “Tyrant Lizard”.
- The name Tyrannosaurus Rex is pronounced: “tye-RAN-uh-SAWR-us-REX”.
- The Tyrannosaurus Rex was part of a group of dinosaurs known as theropod.
- They lived during the Upper Cretaceous period about 66 to 68 million years ago.
- The Tyrannosaurus Rex roamed North America, specifically the areas we now call Canada and the United States.
- Estimates put the weight of a Tyrannosaurus Rex up to 16 tons.
- Estimates put the length of a Tyrannosaurus Rex up to 42 feet.
- Estimates put the running speed of a Tyrannosaurus Rex between 10 and 25 miles per hour.
- The Tyrannosaurus Rex had between 50 and 60 large teeth.
- The Tyrannosaurus Rex was a carnivorous predator who ate meat.
- The Tyrannosaurus Rex was the largest apex predator of the dinosaur era.
- The Tyrannosaurus Rex probably didn’t always have to kill for its meal. Its large size made it easy for it to chase off other predators from their kill.
- The Sue fossil (FMNH PR 2081), discovered on 8/12/1990 by Susan Hendrickson, is one of the best Tyrannosaurus Rex fossils ever discovered. This specimen was very well preserved and 90% of the original skeleton was recovered.
- It’s estimated that Sue was 28 years old around the time when it died and was the oldest know Tyrannosaurus Rex until the discovery of Trix (RGM 792.000) in 2013.
- The Stan fossil (BHI3033), discovered in 1987, has the best skull of a Tyrannosaurus Rex ever recovered.
- The Tyrannosaurus Rex, Iguanodon and Stegosaurus were the inspiration used to create Godzilla.
- Tyrannosaurus Rex has been featured in every movie of the Jurassic Park franchise.
Tyrannosaurus Rex Pictures
The Black Beauty Tyrannosaurus Rex skeleton at the Royal Tyrrell Museum
Credit: Matthew Rhodes / Twipu
The Sue Tyrannosaurus Rex skeleton at the Chicago Field Museum.
Credit: Lisa Fielding / WBBM
The Stan (BHI 3033) T-Rex skeleton at the Farmington Museum.
Credit: Farmington Museum
A fossilized Tyrannosaurus Rex skull.
Close up of Tyrannosaurus Rex teeth.
Credit: Andrew A. Skolnick
Tyrannosaurus Rex attacking its prey.
Credit: Mark Stevenson
Additional Resources on Tyrannosaurus Rex
- Tyrannosaurus Rex @ Nat Geo Kids – Amazing Triceratops facts for kids on the National Geographic website for kids.
- Tyrannosaurus Rex @ American Museum of Natural History – Great site for kids wanting to learn about the Tyrannosaurus Rex.
- Tyrannosaurus Rex @ London Natural History Museum – Find more facts about the Tyrannosaurus Rex on the London Natural History Museum website.
- Tyrannosaurus Rex @ UCMP Berkeley – A great site for some raw facts about the Tyrannosaurus Rex.