Across
- 8. a small herbivorous dinosaur from Montana
- 9. change a change in the world's climate
- 10. a new species of pterosaur from China
- 11. a type of body fossil that forms when crystals fill a mold
- 14. the earth science that studies fossil organisms and related remains
- 16. a genus of squid relatives that lived during the Jurassic period
- 17. the largest, longest, and heaviest snake ever discovered
- 20. plants having seeds in a closed ovary
- 21. fossil a type of fossil that provides evidence of the activities of ancient organisms
- 22. plants of the class Gymnospermae having seeds not enclosed in an ovary
- 24. flightless bird with a head the size of a horse's wandering about in the winter twilight of the high Arctic
- 25. An enormous crocodile ancestor with blade-like teeth walked on two legs
Down
- 1. any placental mammal of the order Primates
- 2. lived in temperate forests in what is now the south of South America during the Upper Cretaceous period.Aquilops americanus a small herbivorous dinosaur from Montana
- 3. lacking a backbone or spinal column
- 4. A fierce marine lizard that patrolled the sea more than 65 million years ago
- 5. Tiger the most ferocious-looking teeth ever seen on a mammal
- 6. the northernmost dinosaur known to have ever lived
- 7. the process of covering the earth with glaciers or masses of ice
- 12. vertebrate having an amnion surrounding the embryo
- 13. rex Most famous carnivore of all time; from jurassic period
- 15. related to the famous tyrannosaurus rex; had a meat-free diet
- 18. The big dino lived in the late-Cretaceous North Africa
- 19. from 230 million to 63 million years ago
- 23. a new species of hadrosaur from Utah