Pectinodon roamed North America more than 66 million years ago during the Late Cretaceous Period. The only evidence of this dinosaur that paleontologists have discovered is its teeth. The name Pectinodon comes from the Latin words for “comb” and “tooth,” referring to the teeth’s serrated edges.
This biped was believed to have strong hind legs and weaker forearms. Pectinodon was a member of the troodontid family like Latenivenatrix, making it a small, bird-like dinosaur. It was roughly seven feet long and three feet tall. Experts believe this carnivore weighed about 110 pounds. Their teeth resemble those of an iguana, making them ideal for chewing meat.