The Bissekty Giant: When Raptors Ruled Over Tyrannosaurs

The biggest dromaeosaur (raptor) dinosaur may have been a fragmentary giant from the Bissekty Formation in Uzbekistan. This gigantic relative of Achillobator and Utahraptor is known from a pedal phalanx and a maxilla, and would have weighed between 900 and 1200 kilograms. While Velociraptor was smaller in real life than its depiction in Jurassic Park, Utahraptor was bigger than the JP raptors and the Bissekty Giant was much, much bigger.

Sues, Hans-Dieter & Averianov, Alexander & Britt, Brooks. (2022). A giant dromaeosaurid theropod from the Upper Cretaceous (Turonian) Bissekty Formation of Uzbekistan and the status of Ulughbegsaurus uzbekistanensis. Geological Magazine. 160. 1-6. 10.1017/S0016756822000954.

A new carcharodontosaurian theropod dinosaur occupies apex predator niche in the early Late Cretaceous of Uzbekistan
Kohei Tanaka, Otabek Ulugbek Ogli Anvarov, Darla K. Zelenitsky, Akhmadjon Shayakubovich Ahmedshaev and Yoshitsugu Kobayashi
Royal Society Open ScienceVolume 8, Issue 9
Published:08 September 2021

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