Geological Time
Across
- 4. Thicker bones
- 5. Upper forearm
- 8. A backbone
- 10. Lower forearm
- 12. Rock made of loose particles
- 13. Long phalanges
- 14. Upper fingers
Down
- 1. Opposable thumbs
- 2. Long phalanges and can swim
- 3. Shoulder to elbow
- 4. Predator like legs
- 6. Lower fingers
- 7. Opposite of palm
- 9. Layers of rock
- 11. Has wings and is aerodynamic