Related Clues:
- Long span
- Record set by old church for long period
- Geologist's time span
- Myriad eras
- What about political correctness around 'old age'?
- Bunch of eras
- Numerous centuries
- Apparent stretch between Christmases, to kids
- Quite a long while
- Late Jurassic, e.g
- Listless on reflection for long period
- Long, long, long time
- Seemingly endless span
- Hard-to-imagine period
- Near-infinite time span