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Bistahieversor sealeyi

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description Bistahieversor sealeyi Overview

Bistahieversor sealeyi is a species of tyrannosaurid theropod dinosaur described in 2010 from fossils recovered from the Late Cretaceous Kirtland Formation in New Mexico, United States. The genus name incorporates Diné (Navajo) language elements referencing the Bisti/De-Na-Zin Wilderness area where the specimens were discovered. Bistahieversor was a large bipedal predator and represents one of the better-known tyrannosaurids from the American Southwest. Its cranial anatomy, including an unusually high number of openings in the skull bones, distinguishes it from other tyrannosaurid genera.

help Bistahieversor sealeyi FAQ

What kind of dinosaur was Bistahieversor sealeyi?

Bistahieversor sealeyi was a large tyrannosauroid theropod from the Late Cretaceous. It is known for a deep snout and was described from fossils found in New Mexico.

When and where was Bistahieversor sealeyi described?

The species was formally described in 2010 from material associated with the Kirtland Formation in northwestern New Mexico. Fossils include an adult partial skull and skeleton as well as juvenile material.

How large was Bistahieversor sealeyi?

Published estimates place adult Bistahieversor at roughly 8 to 9 meters long, with mass estimates ranging from around 2.5 to more than 3 metric tons. These figures are reconstructions from incomplete fossil material rather than a direct measurement of a living animal.

What does the name Bistahieversor refer to?

The name combines a reference to the Bisti/De-Na-Zin Wilderness area with the Latin word eversor, meaning destroyer. That name reflects both the New Mexico discovery region and the animal's tyrannosaur-like predatory role.

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