Across
- 3. fin on the back
- 7. scramble vote louin to move forward
- 9. shape that helps fast movement ahead
- 10. place in Dorset famous for full fish-lizard fossils
- 11. I leave my tracks behind as clues
- 15. literally your backbone
- 17. in Germany where blackish shale contained bones
Down
- 1. fleshing out from these remains
- 2. extinct arthropods with different lifestyles in the seas
- 4. large marine reptiles from the past
- 5. living on land
- 6. country in Europe where whole fossils were found
- 8. the worm of a thousand feet
- 12. bones on the outside
- 13. rocks from the sea bed in layers
- 14. animals that suckle their young
- 16. living in the ocean