Clue: Period bookended by extinction events
We have 1 answer for the clue Period bookended by extinction events. See the results below.
- Period of the first dinosaurs
- Arizona's Petrified Forest dates from this period
- Very old
- Post-Permian period
- Geologic period
- Period in which dinosaurs appeared
- First period of the Mesozoic Era
- Period when mammals first appeared
Last Seen In:
- New York Times - October 19, 2012
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