Bistahieversor

Say it like this: “bis-tah-he-ee-VER-sor”

Bistahieversor sealeyi

Bistahieversor ate meat and walked on two legs. It lived in the Late Cretaceous. Bones have been found in the United States.

Quiz me on Bistahieversor

When: Late Cretaceous (Campanian) · roughly 83.6 to 72.2 million years ago
Named in: 2010 · Carr, T. D.; Williamson, T. E.
Hip height: Not established
Length: 8–9 m · 26–30 ft
Weight: 1–3.3 tonnes
Found in: the United States · Kirtland
Food and walking: Carnivore · Two legs
Kind: sharp-clawed runner · Theropod
Family branch: Eutyrannosauria

The story in short

Bistahieversor was formally named in 2010 by T. D. Carr and T. E. Williamson. The name means “bistahi destroyer.”

Fossils referred to Bistahieversor date to the Late Cretaceous (Campanian), roughly 83.6 to 72.2 million years ago. Finds come from the United States, including the Kirtland Formation. It was a carnivore and walked on two legs.

Published estimates put Bistahieversor at a length near 8–9 m and a body mass around 1–3.3 tonnes.

On the family tree it sits in Eutyrannosauria, among the theropod dinosaurs.

Close relatives

Appalachiosaurus

Appalachiosaurus montgomeriensis

Late Cretaceous (Campanian) · roughly 83.6 to 72.2 million years ago

Dryptosaurus

Dryptosaurus aquilunguis

Late Cretaceous (Maastrichtian) · roughly 72.2 to 66 million years ago

Nanotyrannus

Nanotyrannus lancensis

Late Cretaceous (Maastrichtian) · roughly 72.2 to 66 million years ago