Across
- 2. In early species what gender tends to be shorter
- 5. Most diverse group of vertebrate
- 9. Walking on two feet
- 10. group that contains all living turtles and tortoises
- 16. What bone helps give information about the biology of an animal
- 18. A genus with small body ape like hominin
- 20. What needs to be dated to find out how old fossils are
- 21. Sediment that have become rock solid
- 23. Common in the jurassic; had a crown of spikes on its head
- 24. Someone who studies mammals and animal fossils
- 27. Earliest group of vertebrates to evolve powered flight
- 28. relative to crocodiles and alligators
- 29. largest turtle species to ever live
- 30. What event caused mass extinction of placoderms
Down
- 1. biggest living vertebrate
- 3. What is the scientific word for early humans
- 4. What is the term used for walking on all fours
- 6. What did Neanderthals and modern day humans theoretically compete for
- 7. tells you whether a shark is male or female
- 8. A scan that uses x-rays to show the inside of fossils in 3D
- 11. Someone who studies fossil records of ape and human evolution
- 12. Largest placoderm group
- 13. What are modern dinosaurs
- 14. Earliest animals with jaws
- 15. relative to living frogs; had tusks
- 17. Lizard hipped dinosaurs
- 19. When traits are passed down from a previous generation
- 22. Old name for megalodon
- 25. Fish that have four feet
- 26. Bird hipped dinosaur