UYENO, T. & HASEGAWA, Y. & NOHARA, T. & ADANIYA, A. (1975)
Fossil Shark Teeth from Cretaceous and Tertiary Beds in Shikoku Island, Japan. [in Japanese] Memoirs of the National Science Museum, 8: 52–56
UYENO, T. & HASEGAWA, Y. & NOHARA, T. & ADANIYA, A. (1974)
A fossil shark tooth of Carcharodon megalodon from Miyako-jima (Studies of the Paleovertebrate Fauna of Ryukyu Islands, Japan. Part V). Memoirs of the National Science Museum, 7: 61–64, pls. 7 – 8, 2 figs. [in Japanese, with English summary]