Across
- 2. Known as the "Age of Fish".
- 5. The dying out of a species.
- 6. Remains of ancient life.
- 7. The final period of the Mesozoic era.
- 9. Terms for Expanding the Puzzle
Down
- 1. Supercontinent that existed during the late Paleozoic and early Mesozoic eras.
- 3. 3. EPOCH, 5. ERA, 6. PERIOD, 7. CAMBRIAN
- 4. 1. PRECAMBRIAN, 2. MESOZOIC, 4. CENOZOIC
- 8. The largest division of geologic time.