The most common and most likely answer to this crossword clue is the 7 letter word PERMIAN which also is the latest solution we found used in Chronicle of Higher Education in 2005.
Period marked by the largest mass extinction in earth's history crossword clue answers
Here's a list of possible crossword answers ranked by the most likely to least likely.
| Answer | Likelyness | Letters |
|---|---|---|
| PERMIAN | 100 % | 7 |
Words with a meaning similar to the clue: Period marked by the largest mass extinction in earth's history
These words may or may not be a possible solution to this crosswords clue.- age
- permian
- drift
- dau
- day
- time
- season
- year
- saturn
- cretaceous
- orb
- epoch
Crossword Answer definitions
More crossword clues leading to the same solutions
Here's a few more crossword clues - all leading to the identical solution