Okamura, Y. & Fudouji, Y. & Karasawa, H. (2000)
A first record of the genus Pseudaetobatus (Myliobatiformes, Myliobatidae) from the middle Eocene Okinoshima Group, Kyushu, Japan. Bulletin of the Mizunami Fossil Museum, 27, 199–200

Nishimoto, H. & Okumura, Y. & Karasawa, H. (1992)
Dermal scales of Carcharocles megalodon (Agassiz) from the Miocene Mizunami Group, central Japan - Studies on dermal scales of some elasmobranch fossils from Japan. Part 1. Bulletin of the Mizunami Fossil Museum, 19, 269–271

Nishimoto, H. & Karasawa, H. (1991)
Notes on Megascyliorhinus miocaenicus (Antunes and Donet, 1970) (Orectolobiformes: Elasmobranchii) from the Miocene Bihoku Group, Southwest Japan. Bulletin of the Mizunami Fossil Museum, 18, 107–110

Nomura, M. & Hatanaka, O. & Nishimoto, H. & Karasawa, H. & Nanao Nojiriko Group (1991)
Megasqualus serriculus Jordan and Hannibal (Squalidae: Squaliformes: Elasmobranchii) from the Middle Miocene Nanao Calcareous Sandstone, Nanao City, Noto Peninsula, Central Japan. Bulletin of the Mizunami Fossil Museum, 18, 33–45

Karasawa, H. (1989)
Late Cenozoic elasmobranchs from the Hokuriku district, Central Japan. Science Reports of Kanazawa University, 34(1): 1–57, 1 fig., pl. 1–8

Itoigawa, J. & Nishimoto, N. & Karasawa, H. & Okumura, Y. (1985)
Miocene fossils of the Mizunami group, central Japan. 3. Elasmobranchs. Monographs of the Mizunami Fossil Museum, 5, 1–99