Across
- 1. Objects that can teach us about Earth's history
- 3. Organ used to breathe
- 5. annotation symbol that means "important"
- 6. gas type that animals breathe
- 9. a note of explanation or comment added to a text or diagram.
- 13. Ancient lizard with webbed feet
Down
- 2. fossil location in the Western Hemisphere
- 4. Mesosaurus head shape
- 7. Did you annotate your article?
- 8. Mesosaurus tail length
- 10. external body part used for breathing
- 11. fossil location in the Eastern Hemisphere
- 12. Mesosaurus feet descriptor