CD/Web Review Questions

Chapter 16, The Early Mesozoic Era

  1. The beginning of the breakup of Pangea in Late Triassic time signaled a shift from a __________ plate boundary system to a _________ plate boundary system. Hint

  2. The Jurassic Period is sometimes known as the Age of the ________ because these smooth-edged tropical plants dominated the warmer climates of the period. Hint

  3. Mass extinctions occurred at least _______ times during the Mesozoic Era. Hint

  4. What is the earliest known dinosaur? Where was its fossil found? Hint

  5. In which direction does the pubis point in ornithischian dinosaurs? Hint

  6. What was the largest Triassic dinosaur? Hint

  7. To which of the two orders of dinosaurs did it belong? Hint

  8. What dinosaur lived in China in the Middle Jurassic Period? Hint

  9. Name two features of the climate in the Late Jurassic Period. Hint

  10. Which subgroup of herbivorous dinosaurs had very long necks and tails, relatively small skulls and brains, and four short, thick, five-toed legs? Hint

  11. Name three features that distinguished Archaeopteryx from modern birds. Hint

  12. Name three orogenies that were taking place during the Late Triassic Period. Hint

  13. What is the first epoch of the Triassic period? Hint

  14. What are the three epochs of the Jurassic Period? Hint

  15. About how old are the deposits in the Chinle Formation? Hint

  16. In what stage of the Triassic Period does the Owl Rock Formation of the Chinle Group lie? Hint

  17. What formation is the most widespread stratigraphic unit of the Chinle Group? Hint

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