We now know of a new discovery of a key piece in the history of tyrannosaurs. It has been named Khankhuuluu mongoliensis and may be the key to understanding how there was an evolution from smaller ...

A new tyrannosauroid, Khankhuuluu mongoliensis gen. et sp. nov., from lower Upper Cretaceous deposits of Mongolia provides a new perspective on eutyrannosaurian origins and evolution.

Taxonomy is the classification and description of living organisms. It includes the naming and defining of species, and the collation of data about their biology and biogeography. In this Review ...

This handout artist's illustration made available by University of Calgary on June 6, 2025, shows the newly discovered dinosaur species Khankhuuluu mongoliensis, an ancestor of Tyrannosaurus Rex.