| Answer | Crossword Clue |
|---|---|
| ERA | Cenozoic or Archeozoic |
| ERAS | Archeozoic and Cenozoic |
| ERA | Archeozoic or Proterozoic |
| EON | Proterozoic or Archeozoic, e.g. |
| ERA | Paleozoic or Cenozoic |
| ERA | Cenozoic or Paleozoic |
| ERA | Mesozoic or Cenozoic |
| ERA | Cenozoic or Mesozoic |
| ERA | Christian or Cenozoic |
| ERA | Cenozoic or Paleozoic, e.g. |
