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- An Early Albian Arctic-type ammonite Arcthoplites from Hokkaido, northern Japan, and its paleobiogeographic and paleoclimatological implications.
- Journal of Asian Earth Sciences, vol. 34, no. 1, pp. 46–50.
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- Iba, Y. and Sano, S., 2006:
- Mesorbitolina (Cretaceous larger foraminifera) from the Yezo Group in Hokkaido, Japan and its stratigraphic and paleobiogeographic significance.
- Proceedings of the Japan Academy, Series B, vol. 82, no. 7, pp. 216–223.
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- Iba, Y., Sano, S., Mutterlose, J. and Kondo, Y., 2012:
- Belemnites originated in the Triassic—A new look at an old group.
- Geology, vol. 40, no. 10, pp. 911–914.
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- Ichikawa, K., 1949:
- Trigonucula (nov.) and other taxodont pelecypods from the Upper Triassic of the Sakawa basin in Shikoku, Japan.
- Japanese Journal of Geology and Geography, vol. 21, nos. 1–4, pp. 267–272, pl. 10.
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- Ichikawa, K., 1950:
- Sakawanella, new genus, and some other pelecypods from the Upper Triassic Kochigatani group in the Sakawa basin, Shikoku, Japan.
- Journal of the Faculty of Science, University of Tokyo, Section 2, vol. 7, pt. 3, pp. 245–256, pl. 5.
- Ichikawa, K., 1951a:
- Actinodontophora, nov. and other Permian Mollusca from Katsura in Sakawa basin, Shikoku, southwest Japan.
- Journal of the Faculty of Science, University of Tokyo, Section 2, vol. 7, pt. 6, pp. 317–335, pl. 1.
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- Ichikawa, K., 1951b:
- Notes on the Entomonotis-bearing Triassic formation at Iwai near Itsukaichi, Tokyo Prefecture with a description of a new Entomonotis.
- Transactions and Proceedings of the Palaeontological Society of Japan. New Series, no. 2, pp. 43–48.
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- Ichikawa, K., 1954a:
- Triassic Mollusca from the Arai formation at Iwai near Itsukaichi, Tokyo Prefecture.
- Japanese Journal of Geology and Geography, vol. 24, pp. 45–70, pl. 7.
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- Ichikawa, K., 1954b:
- Early Neo-Triassic pelecypods from Iwai, near Itsukaichi, Tokyo Prefecture.
- Japanese Journal of Geology and Geography, vol. 25, nos. 3–4, pp. 177–195, pl. 17.
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- Ichikawa, K., 1954c:
- Late Triassic pelecypods from the Kochigatani group in the Sakuradani and Kito areas, Tokushima Prefecture, Shikoku, Japan. - Part 1.
- Journal of the Institute of Polytechnics, Osaka City University, Series G, vol. 1, no. 1, pp. 35–57, pls. 1–2.
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- Ichikawa, K., 1954d:
- Late Triassic pelecypods from the Kochigatani group in the Sakuradani and Kito areas, Tokushima Prefecture, Shikoku, Japan. - Part 2.
- Journal of the Institute of Polytechnics, Osaka City University, Series G, vol. 2, pp. 53–74, pls. 3–4.
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- Ichikawa, K., 1963:
- A survey of the fossils from Japan illustrated in classical monographs. Part 4. Edmund Mojsisovics von Mojsvár (1888): Über einige japanische Trias-fossilien.
- Palaeontological Society of Japan, 25th Anniversary Volume, pp. 9–11, pls. 17–20.
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- Ichikawa, K. and Maeda, Y., 1958:
- Late Cretaceous pelecypods from the Izumi group Part 2. Orders Taxodontida, Prionodontida, Dysodontida, Desmodontida and Adapedontida.
- Journal of the Institute of Polytechnics, Osaka City University, Series G, vol. 4, pp. 71–122, pls. 3–7.
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- Ikebe, N., 1936:
- Pleistocene Shell Bed of Toyonari, Tiba Prefecture, (Resume), with Descriptions of Two New Species of Odostomia and a Note on Arcopagia (Merisca) serricostata (Tokunaga).
- Venus, vol. 6, no. 4, pp. 189–205. (in Japanese with English description)
PDF in prep.
- Isaji, S., 1993:
- Formation of organic sheets in the inner shell layer of Geloina (Bivalvia: Corbiculidae): an adaptive response to shell dissolution.
- The Veliger, vol. 36, no. 2, pp. 166–173.
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- Ito, Y., 1999:
- Ontogenetic changes in boring behavior by the rock-boring bivalve, Barnea manilensis (Pholadidae).
- The Veliger, vol. 42, no. 2, pp. 157–168.
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- Iwamoto, M. and Takai, F., 1972:
- The Pleistocene macaque from the Tokai district, Japan - Morphological consideration mainly from the tooth-size.
- Journal of Anthropological Society of Nippon, vol. 80, no. 1, pp. 1–10. (in English with Japanese abstract)
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- Iwasaki, Y., 1963:
- Pseudamiantis, a pelecypod genus.
- Transactions and Proceedings of the Palaeontological Society of Japan. New Series, no. 51, pp. 91–101, pls. 14–15.
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- Iwasaki, Y., 1963:
- Pseudamiantis, a pelecypod genus.
- Transactions and Proceedings of the Palaeontological Society of Japan. New Series, no. 51, pp. 91–101, pls. 14–15.
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- Iwasaki, Y., 1970a:
- The Shiobara-type molluscan fauna. An ecological analysis of fossil molluscs.
- Journal of the Faculty of Science, University of Tokyo, Section 2, vol. 17, pt. 3, pp. 351–444, pls. 1–7.
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