Most regular visitors of Chicago's Field Museum are on a first-name basis with Sue, the Tyrannosaurus rex skeleton that adorns the museum's front hall. Vlad Ghiea / Alamy When it comes to dinosaur ...

Everybody is familiar with the dinosaur Tryannosaurus rex, but did you know that it was a tyrannosaurine tyrannosaurid tyrannosauroid? It's true, and you really did read that last line correctly.