Crossword clues for the word: PLIOCENE The word PLIOCENE has appeared as an answer to at least 5 crossword clues on different crossword puzzles. Crossword clues for PLIOCENE Showing 1 to 5 of 5 results Clue(s) Epoch from 10 to 2 million years ago Epoch from two to five million years ago Epoch when the landmasses of North and South America joined Geological epoch Last epoch of the Tertiary period