| Answer | Crossword Clue |
|---|---|
| EON | Long geologic time division |
| NEOCENE | Geologic-time division |
| ERA | Geologic time division. |
| ERA | Geologic time division |
| EON | Geologic time division |
| EON | Division of geologic time. |
| EON | Division of geologic time |
| ERA | Division of geologic time. |
| NEOCENE | Geologic time division (Var.) |
| EON | Largest geologic time division |
| EON | Largest division of geologic time |
| EON | Longest division of geologic time |
| ERIAN | Of a geologic time division |
| EON | The longest division of geologic time |
| EPOCH | Long geologic time period |
| EON | Long time division |
