T. rex fossil named after its discoverer

SUE

This famous dinosaur’s three-letter nickname became the largest, most complete T. rex ever found.

The clue refers to "SUE," the famous Tyrannosaurus rex fossil discovered in 1990 by paleontologist Sue Hendrickson. It’s named after her as a nod to the tradition of honoring the person who found significant fossils. The all-caps "SUE" isn’t wordplay—it’s just how the specimen is officially labeled, making it a straightforward reference. If you know dinosaur history, this one’s a classic.