Paleontology Lab

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

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