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Featured researches published by Hisaharu Igo.


Journal of the Geological Society of Japan | 1971

CONTRIBUTION TO THE GEOLOGICAL HISTORY OF THE JAPANESE ISLANDS BY THE CONODONT BIOSTRATIGRAPHY PART II

Toshio Koike; Hisaharu Igo; Shigeru Takizawa; Tsutomu Kinoshita


Proceedings of the Japan Academy | 1975

On the Base of the Devonian System in Japan

Hisayoshi Igo; Toshio Koike; Hisaharu Igo


Journal of the Geological Society of Japan | 1974

On the occurrence of Triassic conodonts from the Sorachi Group in the Hidaka Mountains, Hokkaido

Hisayoshi Igo; Toshio Koike; Hisaharu Igo; Tsutomu Kinoshita


Journal of the Geological Society of Japan | 1974

Geological significance of the unconformity between the Permian Nabeyama and Triassic Adoyama Formations in the vicinity of Kuzuu, Tochigi Prefecture

Toshio Koike; Hisayoshi Igo; Hisaharu Igo; Tsutomu Kinoshita


Transactions and proceedings of the Paleontological Society of Japan. New series | 1988

857. PERMIAN SPHINCTOZOAN SPONGES FROM THE ICHINOTANI FORMATION, HIDA MASSIF, CENTRAL JAPAN

Hisayoshi Igo; Hisaharu Igo; Shuko Adachi


Journal of the Geological Society of Japan | 1971

Conodonts from the Tochigi Group and the discovery of a thrust fault in the vicinity of Kuzuu, Tochigi Prefecture

Toshio Koike; Tsutomu Kinoshita; Hisaharu Igo; Shigeru Takizawa


Journal of the Geological Society of Japan | 1970

New Evidences of Triassic Conodont Biostratigraphy in Japan

Toshio Koike; Kozo Watanabe; Hisaharu Igo


Transactions and proceedings of the Palaeontological Society of Japan. New series | 1986

823. LOWER PERMIAN CONODONTS FROM THE KAWANORI FORMATION OF THE SOUTHWESTERN KANTO MOUNTAINS, TOKYO

Hisaharu Igo; Ken-ichiro Hisada


Annual report of the Institute of Geoscience, the University of Tsukuba | 1984

On the occurence of conodonts and radiolarians from the San Juan Islands,Washington and Vancouver Island,British Columbia

Hisayoshi Igo; Toshio Koike; Hisaharu Igo; Katsuo Sashida; Ken-ichiro Hisada; Yukio Isozaki


Science reports of the Institute of Geoscience, University of Tsukuba. Section B, Geological sciences | 2001

Permian rugose corals from the Gozenyama Formation,Hinohara Village,Nishitama County,Tokyo

Hisayoshi Igo; Shuko Adachi; Hisaharu Igo

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Toshio Koike

Yokohama National University

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