福井県大野市大納地域からの後期ジュラ紀アンモノイドの産出と九頭竜地域手取層群の対比再検討(1.13MB)
Discovery of Late Jurassic ammonoid fossils from the Ono area and the correlation of the Tetori Group in the Kuzuryu district, Central Japan

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佐野晋一・ 後藤道治・ 成田貴人・ 脇本晃美・大藤　茂
Shin-ichi SANO, Michiharu GOTO, Takahito NARITA, Akemi WAKIMOTO and Shigeru OTOH

Evidence for Late Permian.Triassic volcanism in the Hida Gaien Belt, Southwest Japan: New U-Pb ages from the Motodo, Ashidani, and Otani formations(3.56MB)

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Yuta KAWAGOE, Norimichi MORI, Shin-ichi SANO, Yuji ORIHASHI, Koshi YAMAMOTO, Yasuo ISHIZAKI, Yoshikazu KOUCHI and Shigeru OTOH
高解像度版PDF（9.76MB）

Detrital zircon geochronology of the Silurian.Lower Cretaceous continuous succession of the South Kitakami Belt, Northeast Japan(11.2MB)

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Hiroyuki OKAWA, Masanori SHIMOJO, Yuji ORIHASHI, Koshi YAMAMOTO, Takafumi HIRATA, Shin-ichi SANO, Yasuo ISHIZAKI, Yoshikazu KOUCHI, Shuichi YANAI and Shigeru OTOH
高解像度版PDF（32.2MB）

長野県来馬地域の下部ジュラ系来馬層群からの果鱗化石Swedenborgiaの発見(826KB)
Discovery of a cone-scale fossil of Swedenborgia from the Lower Jurassic Kuruma Group in the Kuruma area of Nagano Prefecture, Central Japan

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寺田和雄
Kazuo TERADA

アンモナイト類の螺環の内部構造を説明するための模型試作(790KB)
A model of ammonite whorl, showing the growth mode of the shell

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後藤道治
Michiharu GOTO