Troodon

Troodon was a relatively small, bird-like dinosaur from the Late Cretaceous Period (75-65 mya). Discovered in 1855, it was among the first dinosaurs found in North America.

Its name (pronounced "Tro-odon") is Greek for "wounding tooth", referring to the dinosaur's serrated teeth (although these may actually have been adapted for a herbivorous diet). They were formerly known as saurornithoidids.