Permian-Triassic Period

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Across
  1. 2. _____ could withstand a very low oxygen levels
  2. 3. Vacant _____ is what survivors occupy.
  3. 4. The Permian-Triassic Period is also known as the _______ ________.
  4. 6. Clouds of _______ may have been restricting the amount of sunlight available to plants.
  5. 10. The _______ were emerging about 250 million years ago
  6. 11. Studies show that worms and _____ were the first to bounce back
  7. 12. Dinosaurs were the ______ of the archosaurs.
  8. 13. Evidence suggests that the temp. of ______ increased by 6 degrees
  9. 15. About 14 million years after the Great Dying, a new group of corals emerged, the _____ or scleractinian
Down
  1. 1. Species _______ from the equator suffered the most.
  2. 5. Dinosaurs, birds, pterosaurs, crocodiles, and turtles were part of the ________.
  3. 7. When animals were recovering the animals were small mammal-like reptiles called ________.
  4. 8. ______ 240 million years ago.
  5. 9. The name of the supercontinent that formed during this period
  6. 14. Vast fern prairies died because the ________ became drier