A new dinosaur from the lower Upper Cretaceous of Uzbekistan, Ulughbegsaurus uzbekistanensis, was described from a single maxilla fossil. The research team estimated that this carcharodontosaurian weighed over 1000 kg and measured 7.5--8.0 meters in length, much larger than previously described predators from the same formation. The fossil's age, location, and co-occurrence with the smaller tyrannosaurid Timurlengia shed light on the transition from carcharodontosaurians to tyrannosaurids occupying the apex predator niche.
source https://www.sciencedaily.com/releases/2021/09/210908180446.htm
Friday, 10 September 2021
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