Outline: a typical theropod
Bistahieversor
"Bistahi destroyer"
- Lived
- 84 to 72 million years ago, Late Cretaceous
- Diet
- Carnivore
- Group
- Theropods, Tyrannosauridae
- Found in
- United States
- Named by
- Carr and Williamson 2010
Where its fossils were found
The evidence
Today
80 million years ago
Field notes
About Bistahieversor
What it was like
Bistahieversor was a tyrannosaur, a relative of Tyrannosaurus and Daspletosaurus. It walked on two legs and had a deep skull with thick teeth and small arms.
Its skull had a small opening above each eye that other tyrannosaurs lack, and some scientists think it had a keen sense of smell.
Its world
It lived about 84 to 72 million years ago, in the Late Cretaceous, in what is now New Mexico. Its bones come from the Fruitland and Kirtland formations of the badlands, where Parasaurolophus, Pentaceratops and Kritosaurus lived too. It was probably the top predator of its area.
How it was found
Carr and Williamson named Bistahieversor in 2010. Four finds are known, including a young animal.
Lived alongside
Found in the same rock formations
Close relatives
Other members of Tyrannosauridae
Sources: WikidataNamed in: T. D. Carr and T. E. Williamson. 2010. Bistahieversor sealeyi, gen. et sp. nov., a new tyrannosauroid from New Mexico and the origin of deep snouts in Tyrannosauroidea. Journal of Vertebrate Paleontology 30(1):1-16