Fukata, K. & Kameya, A. & Takakuwa, Y. & Fujii (2014)
Discovery of the teeth remains Parotodus benedeni from the Oligocene Ashiya Group in the Hikoshima Nishiyama Area, Shimonoseki City, Yamaguchi Prefecture, Southwest Japan.
Bulletin of the Yamaguchi Museum, 40, 9–20