| Answer | Crossword Clue |
|---|---|
| AEON | Geological timespan (Var.) |
| AEON | Geological span: var. |
| AEON | Geological period (Var.) |
| AEON | Long geological period (var.) |
| AEON | Geological time period (Var.) |
| AEON | Geological time division (Var.) |
| AEON | Longest division of geological time (Var.) |
| AEON | Longest division of geological time (var.) |
