In Depth Aulophyseter was a predatory whale similar to a modern day sperm whale, although it probably had a more diverse diet. Aulophyseter was related to other predatory whales such as Acrophyseter and the large Livyatan. Some Aulophyseter however bear a resemblance to another whale called Orycterocetus raising the possibility that these fossils could be … Read more
In Depth Unfortunately still only known from very incomplete remains, Ashorocetus was an early baleen whale. Relatives of Ashorocetus include Aetiocetus and Willungacetus. Further Reading - Classification and distribution of Oligocene Aetiocetidae (Mammalia; Cetacea; Mysticeti) from western North America and Japan - L. G. Barnes, M. Kimura, H. Furusawa & H. Sawamura - 1995.