T. rex had to get smart before it got big
Discovery of a horse-sized tyrannosaur relative reveals developing senses and brain
But a new species of tyrannosaur, found in Uzbekistan, helps fill in that gap in time and explains why T. rex got so big. The 90-million-year-old fossils were studied by Dr. Stephen Brusatte, a paleontologist from The School of Geosciences at the University of Edinburgh.
The new species - Timurlengia euotica - was as big as a horse, but the size and shape if its skull reveal that its brain and senses were already highly developed. It is believed that Timurlengia needed to become a smart predator with keen senses, before it could become the king of dinosaurs.
- Paper in PNAS
- University of Edinburgh release
- CBC News story
- New York Times story
- Scientific American story
- Dr. Brusatte previously on Quirks on Super-sized Salamander and Pinocchio Rex