The Clue
Mesozoic and Paleozoic (4 letter answer)
The Answer
ERAS
Tags
Notes
The answer ERAS is very common and appears about once every 35 puzzles.
Related Clues
Ages
Epochs
Periods
Times
Actian and Augustan
Alexandrian and Babylonian
Baseball stats.
Big times
Bullpen stats
Christian and Caesarean
Christian and others
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Diamond stats
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Historians' study
Historic periods
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Lasting periods
Notable periods
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Periods in history
Roman and Christian
Time divisions
Time periods
Time pieces
Time spans
Timeline divisions
Times past
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Stats for starters and stoppers
Time-line times
Time and time again?
Times to write about
You were: Lat.
Gay 90's and Roaring 20's
Definition
ERA as a noun:
1. (era, epoch) = a period marked by distinctive character or reckoned from a fixed point or event
2. (era, geological era) = a major division of geological time; an era is usually divided into two or more periods
3. (earned run average, ERA) = (baseball) a measure of a pitcher's effectiveness; calculated as the average number of earned runs allowed by the pitcher for every nine innings pitched