New Tyrannosaurus Ancestor Discovered as Key Evolutionary Link

TL;DR Summary
Paleontologists have identified a new dinosaur species related to T. rex, named Khankhuuluu mongoliensis, based on fossils found in Mongolia that were reanalyzed after 50 years. This smaller, agile tyrannosaur provides insights into the evolution and dispersal of tyrannosaurs during the late Cretaceous period, serving as a 'missing link' between smaller tyrannosaurs and the larger T. rex.
- New dinosaur species related to T. Rex discovered ABC News
- A new Mongolian tyrannosauroid and the evolution of Eutyrannosauria Nature
- Ancient T. rex ancestor discovered: Khankhuuluu, ‘prince of dragons’ The Washington Post
- Fossils found in 1970s are most recent ancestor of tyrannosaurs, scientists say The Guardian
- Newly identified T. rex ancestor is "missing link" between apex predators, dinosaur researchers say CBS News
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