7. Pachycephalosaurus
Before humankind invented the hard hat, dinosaurs invented very, very, very hard hats. That’s right—Pachycephalosaurus (pack-ee-keffa-lo-saurus) was a dinosaur with the defining characteristic of a skullcap that could double as a battering ram.
According to the American Museum of Natural History, that ram probably wasn’t used in head-to-head combat, though, as the bony dome was too weak for those impacts. Rather, males may have hit opponents on their sides when fighting over females.
Long considered a strictly herbivorous dinosaur, a recent study of Pachycephalosaurus teeth indicated that the animals may have eaten meat, too. These dinosaurs had the most dragon-like skulls, in my opinion, so they’ve well earned their place on this list.
