Early Dinosaurs Flashcards
1
Q
Q: What are the earliest known dinosaurs?
A
A:
Saurischians: Eoraptor, Eodromaeus, Herrerasaurus, and Panphagia.
Ornithischian: Pisanosaurus.
2
Q
Q: What traits characterized the earliest dinosaurs?
A
A:
Small, bipedal bodies.
Most were carnivores (except Pisanosaurus).
3
Q
Q: What is the perforated acetabulum, and why is it significant?
A
A: A hip socket with a hole through it, a defining feature of true dinosaurs.
