Clue: Billion-year span
We have 1 possible answer for the clue Billion-year span which appears 4 times in our database.
Possible Answers:
Related Clues:
- Fathomless time
- Clock-watcher's wait, seemingly
- One hundred million decades
- The Hadean was the earth's first one
- Geological division
- Scads of centuries
- Seemingly impossible time
- Huge time unit
- DMV wait, seemingly
- Waiting room wait, seemingly
- 1,000,000,000,000,000 years, give or take
- We're currently in the Phanerozoic one
- Extensive geological time
- Extremely long geologic division
- It's been a long time