based on bun's drawings

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Across
  1. 1. cousin of the swordfish
  2. 2. mura
  3. 4. most dangerous river monster in my opinion
  4. 5. eagle of the amazon
  5. 10. papir
  6. 12. ceratopsian of the cretaceous
  7. 14. considered the largest land carnivore in the world
  8. 16. carpet
  9. 17. long necked plesiosaur
  10. 18. quarry find
  11. 20. unique primate to the amazon
Down
  1. 1. spiky tank
  2. 3. probably the coolest looking slitherer in the sea
  3. 6. an ancestor of number 8
  4. 7. vampire fish
  5. 8. reptilian predator of the amazon
  6. 9. mermaid-like scales
  7. 11. man-eating catfish
  8. 13. blue and feathered and smart
  9. 15. ordovician spiral
  10. 19. bouquet helper