Early Cretaceous, 123.2-100 million years ago
Believe it or not, Psittacosaurus was related to Triceratops, though it had no horns or frill. About six feet long, this bipedal herbivore lived in family groups and covered much of prehistoric Asia. More specimens of this dinosaur have been found than any other, and it holds the record for dinosaur species belonging to a single genus: eleven! It’s safe to say this odd ceratopsian truly lived a life of quantity over quality.