Takakuwa, Y. & Tanaka, M. & Kamimura, H. (2022)
New occurrence of Acrodus (Hybodontiformes; Chondrichthyes) fossil from the Ishido Formation (Lower Cretaceous) of the Sanchu Group, Kanna Town, Gunma, Japan Bulletin of Gunma Museum of Natural History, 26, 55–62