Tyrannosaurus rex dinosaur skull fossil ("tyrant reptile") displayed at the American Museum of Natural History in New York City, USA. It was found in 1908 at Big Dry Creek Montana, USA by Barnum Brown and K. C. Kaisen. The fossil dates to the Late Cretaceous Period (65 million years ago). This fossil was the first complete T. rex skull ever collected.
Image taken July 2018.