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Period When Mammals First Appeared Crossword Clue

There is 1 exact and 133 possible answers.
We've checked our database and believe the answer is TRIASSIC which was last seen in the New York Times crossword.
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We think the answer to this crossword clue is: TRIASSIC

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99%8Exact Match!
adjective

• of or relating to or denoting the first period of the Mesozoic era

noun

• the period from 230 million to 190 million years ago; distinguished by dinosaurs, marine reptiles and volcanic activity

39%8 Geological time period when modern mammals appeared
adjective

• of or relating to or denoting the Cenozoic era

noun

• approximately the last 63 million years

38%12Period during which the first mammals appeared
noun

• the time of the physical formation and development of the earth (especially prior to human history)

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Clue Last Found In...

Source #Number Answer
New York Times01 Mar 2018 Down 6
This clue was last seen in the publications above.

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