1. Ando, H., 1997, Apparent stacking patterns of depositional sequences in the Upper Cretaceous shallow-marine to fluvial successions, Northeast Japan. Mem. Geol. Soc. Japan, 48, 43–59.
2. 千谷好之助, 1930, 本邦油田第三紀層の分類とその名称に就きて．地質雑, 37, 262–269. ［Chitani, K., 1930, On the classification and names of the oil-bearing Tertiary formations in Japan. J. Geol. Soc. Japan, 37, 262–269.］ English translation from the original written in Japanese.
3. 藤本幸雄・林 信太郎・渡部 晟・栗山知士・西村 隆・渡部 均……小田嶋博, 2008, 地学教育の素材としての男鹿半島．地質雑, 114, S51–S 74. ［Fujimoto, Y., Hayashi, S., Watanabe, A., Kuriyama, S., Nishimura, T., Watanabe, H.,... Odashima, H., 2008, Geological guide of the Oga Peninsula from educational viewpoints. J. Geol. Soc. Japan, 114, S51–S74.］
4. Hayakawa, T. and Hirano, H., 2013, A revised inoceramid biozonation for the Upper Cretaceous based on high-resolution carbon isotope stratigraphy in northwestern Hokkaido, Japan. Acta Geol. Polonica, 63, 239–263.
5. 早川浩司・中川昌治・田代正之, 1994, ノジュールの核として保存されたイノセラムス：姫浦層群下部亜層群の例．高知大学学術研究報告, 自然科学, 43, 167–181. ［Hayakawa, H., Nakagawa, M. and Tashiro, M., 1994, Inoceramid bivalve preserved as a nucleus of nodule from the Himenoura Group. Res. Rep. Kochi Univ. Nat. Sci., 43, 153–160.］