English edit

Etymology edit

From mega- +‎ mammal.

Noun edit

megamammal (plural megamammals)

  1. A very large mammal, especially an extinct one.
    • 2018, Tim Flannery, Europe: The First 100 Million Years, Penguin, published 2019, page 228:
      In previous ice ages these factors triggered mass migrations of mega-mammals into Europe.