Crossword clues for the word: MASTODONS The word MASTODONS has appeared as an answer to at least 7 crossword clues on different crossword puzzles. Crossword clues for MASTODONS Showing 1 to 7 of 7 results Clue(s) [checklist item] Go to natural history museum to check out... "Large, extinct mammals" Extinct elephants Extinct tusked beasts Huge beasts once beating toads in battle Pleistocene mammals Secretive men eating fox and woolly creatures