Two mandibles of fossil mysticetes from the early Pliocene, upper part of the Horokaoshirarika Formation at Numata Town, Hokkaido, Japan, belong to the archaic, extinct cetotheriid baleen whale, Herpetocetinae gen. et sp. indet. by having an elongated angular process projecting posteriorly beyond the mandibular condyle. The new materials of the Herpetocetinae represent their northernmost occurrence in the North Pacific.
How to translate text using browser tools
1 October 2018
Fossil Herpetocetine Baleen Whales (Cetacea, Mysticeti, Cetotheriidae) from the Lower Pliocene Horokaoshirarika Formation at Numata, Hokkaido, Northern Japan
Yoshihiro Tanaka,
Hitoshi Furusawa,
Lawrence G. Barnes
ACCESS THE FULL ARTICLE
![](/ContentImages/journals/jpal/22/4/4/WebImages/050.022.0400.cover.jpg)
Paleontological Research
Vol. 22 • No. 4
October 2018
Vol. 22 • No. 4
October 2018
baleen whale
fossil
geographic range
Herpetocetinae
systematics