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Dinosaurs the textbook by Lucas, Spencer G (z-lib.org).pdf

Chapter 7

Short Answer:

12. What are the distinctive features of ornithopods?

13. To what feature(s) might you attribute the success of ornithopods?

14. How did hadrosaurids resemble and differ from primitive ornithopods?

15. What features of the skeletons of different groups of ornithopods identify them as either bipeds or facultative bipeds?

16. What defensive strategies did ornithopods employ?

17. How do the jaw, tooth, and skull structures of the various ornithopods differ from each other?

18. Why do paleontologists think the crests and tubes of lambeosaurines functioned as signaling devices?

Chapter 8

Short Answer:

13. What features identify a dinosaur as a thyreophoran?

14. Why is Scutellosaurus identified as a thyreophoran, and why is it easier to assign Scelidosaurus to the thyreophorans?

15. What are the evolutionary novelties of stegosaurs, and how does Huayangosaurus exemplify them?

16. What do paleontologists believe were the arrangement and function of the plates of Stegosaurus? Why?

17. How does the evolution of stegosaurs differ from that of ankylosaurs in terms of timing, distribution, and amount of morphological change?

18. How are ankylosaurs distinguished from other dinosaurs?

19. What defensive strategy did ankylosaurs employ?