What is the order of Ceratopsia?
Q: What is the order of Ceratopsia?
A: The Ceratopsia are the horned dinosaurs of the order Ornithischia.
Q: What is the best-known member of this group?
A: Triceratops is the best-known, and one of the largest members of this group.
Q: Where did they thrive?
A: They thrived in what is now North America and Asia, during the Cretaceous period.
Q: When did their ancestral forms live?
A: Their ancestral forms lived earlier, in the Jurassic period.
Q: How big were early members such as Psittacosaurus?
A: Early members such as Psittacosaurus were small and bipedal.
Q: How large became later members like Centrosaurus and Triceratops? A: Later members like Centrosaurus and Triceratops became very large quadrupeds.
Q: What purpose did their frill serve? A: The frill served mainly to protect their vulnerable neck from bipedal predators like Tyrannosaurus who attacked from above. It was also likely used for display, thermoregulation, or attaching large neck and chewing muscles.
