ショウバラクジラ
Otsuka, H.; Ota, Y. (2008). “Cetotheres from the early Middle Miocene Bihoku Group in Shobara District, Hiroshima Prefecture, West Japan”. Miscellaneous Reports of the Hiwa Museum for Natural History 49 (2): 1-66. https://www.phylonimbus.com/references/article/42293/cetotheres-from-the-early-middle-miocene-bihoku-gr/. 記載された種:Diorocetus shobarensis Otsuka et Ota, 2008