1) Transitional fossil
Found on
https://www.crosswordclues.com/clue/aetiocetus
Aetiocetus is a genus of extinct baleen whale that lived {Mya|33.9|23.03}, in the Oligocene in the North Pacific, around Japan, Mexico, and Oregon, U.S. It was named by Douglas Emlong in 1966 and currently contains four species, A. cotylalveus, A. polydentatus, A. tomitai, and A. weltoni. Aetiocetus is a transitional form between early whales such...
Found on
http://en.wikipedia.org/wiki/Aetiocetus
No exact match found.
