1. How long did dinosaurs live, how did they originate, and do they have living descendants?
2. Which group of early reptiles gave rise to dinosaurs, birds, and crocodiles?
3. What key dinosaurian characteristics does Eoraptor exhibit?
4. How did the way stegosaurs ate differ from the way iguanodonts ate?
5. What kind of evidence supports the hypothesis that the impact of a meteorite caused the extinction of the dinosaurs?
6. Why are crocodiles not considered dinosaurs?
7. Describe the fossil evidence indicating that some dinosaurs may have exhibited parental care similar to that seen among birds.
8. What special backbone and neck design did sauropods have that allowed them to support their massive bodies?
9. Which group of dinosaurs is characterized by terrestrial flesh-eaters?
10. How did the ways ornithopods achieved bipedalism differ from the way theropods achieved it?
11. What might have been the function of the bony plates that extended along the backbone of stegosaurs?