Last seen in:
- Newsday.com - Apr 21 2022
- Newsday.com - May 2 2021
- Newsday.com - Oct 24 2019
- Universal - Jan 15 2019
- The Times - Concise - Times Concise No 7702
- The Times - Concise - Times Concise No 7670
- The Times - Concise - Times Concise No 7665
- Wall Street Journal - May 22 2018 - Rollbacks
- The Times - Concise - Times Concise No 7633
- The Times - Concise - Times Concise No 7462
Related Clues:
- Umpteen years
- Forever, more or less
- Immeasurable period of time (Var.)
- Vast time span
- 365 billion days, geologically
- Big stretch?
- A million millennia (Var.)
- Long geological span
- Two or more eras, in geologic time
- Largest geologic time division
- Long time-
- Longest division of geologic time
- It takes forever
- '___ Flux'
- Unimaginably long time (Var.)