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Across 4. a polar dino 9. deep sea diver 10. early cat chow 11. the earliest elephant ancestor 12. one of the oldest carnivors 18. he is so heavy he should go on a diet 23. an early horned mammal 25. our earliest grandparent 26. a giant turtle 27. there were no "parks" at this time

Down 1. a greenhouse climate 2. an early toothed whale 3. an early horse 5. he has antlers 6. Shark bait but not Nemo 7. the last before the dinos 8. bigger than an elephant 13. is it a bird or a fish? 14. this bird ate cats 15. the first giant 16. huge land carnivore 17. a top pre-dino predator 19. a time of mammals 20. an armored tank 21. a flying dragon 22. a relative of Dumbo 24. land whale