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Epoch that marked the rise of mammals (crossword clue)

6 squares · NYT Crossword · April 4, 2026 · The answer stays hidden until you tap it

This clue appeared in the NYT Crossword on Saturday, April 4, 2026 (23 Across). The answer is hidden below until you want it. Saturday puzzles are the hardest of the week and themeless, so clues are often deliberately misleading.

Answer length: 6 squares

First letter

E _ _ _ _ _

First and last letters

E _ _ _ _ E

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About the answer

EOCENE as a word: (geology) The Eocene epoch; (geology) Of a geologic epoch within the Paleogene period from about 56 to 34 million years ago.

EOCENE has been an answer once in the NYT Crossword and Mini puzzles we have on file, which go back to October 23, 2025.

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