- Niko, S., 2002a:
- Revision of an Ordovician cephalopod Ormoceras yokoyamai (Kobayashi, 1927).
- Paleontological Research, vol. 6, no. 1, pp. 121–124.
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- Niko, S., 2002b:
- Echigoceras sasakii, a new Middle Carboniferous nautilid from the Omi limestone group, central Japan.
- Paleontological Research, vol. 6, no. 4, pp. 351–355.
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- Niko, S., 2005:
- Redescription of the Ordovician cephalopod genus Centroonoceras Kobayashi, 1934.
- Journal of Paleontology, vol. 79, no. 5, pp. 1028–1030.
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- Niko, S., 2007:
- Stratigraphy of the Devonian Fukuji formation in Gifu Prefecture and its favositid coral fauna.
- Bulletin of the National Museum of Nature and Science. Series C, vol. 33, pp. 57–79.
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- Niko, S. and Ehiro, M., 2002:
- Permian orthoconic cephalopods of the Ochiai formation in the southern Kitakami mountains, northeast Japan.
- Paleontological Research, vol. 6, no. 4, pp. 385–389.
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- Niko, S. and Nishida, T., 2003b:
- Devonohelicoceras hidaense, a new torticonic oncocerid (Cephalopoda) from the Lower Devonian of central Japan.
- Proceedings of the Japan Academy, Series B, vol. 79, no. 7, pp. 201–206.
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- Niko, S., Sone, M. and Leman, M. S., 2005:
- A new Permian species of Mooreoceras (Cephalopoda: Orthocerida) from northwestern Peninsular Malaysia.
- Proceedings of the Japan Academy, Series B, vol. 81, no. 8, pp. 329–333.
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- Nishida, K., Ishimura, T., Suzuki, A. and Sasaki, T., 2012:
- Seasonal changes in the shell microstructure of the bloody clam, Scapharca broughtonii (Mollusca: Bivalvia: Arcidae).
- Palaeogeography, Palaeoclimatology, Palaeoecology, vols. 363–364, pp. 99–108.
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- Nishida, K., Nakashima, R., Majima, R. and Hikida, Y., 2011:
- Ontogenetic changes in shell microstructures in the cold seep-associated bivalve, Conchocele bisecta (Bivalvia: Thyasiridae).
- Paleontological Research, vol. 15, no. 4, pp. 193–212.
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- Nishimura, T., Maeda, H. and Shigeta, Y., 2006:
- Ontogenetic shell development of a Cretaceous desmoceratine ammonoid "Tragodesmoceroides subcostatus" Matsumoto, 1942 from Hokkaido, Japan.
- Paleontological Research, vol. 10, no. 1, pp. 11–28.
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- Nishimura, T., Maeda, H., Tanaka, G. and Ohno, T., 2010:
- Taxonomic evaluation of various morphological characters in the Late Cretaceous desmoceratine polyphyletic genus "Damesites" from the Yezo Group in Hokkaido and Sakhalin.
- Paleontological Research, vol. 14, no. 1, pp. 33–55.
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- Nobuhara, T., Onda, D., Kikuchi, N., Kondo, Y., Matsubara, K., Amano, K., Jenkins, R. G., Hikida, Y. and Majima, R., 2008:
- Lithofacies and fossil assemblages of the Upper Cretaceous Sada limestone, Shimanto City, Kochi Prefecture, Shikoku, Japan.
- Fossils, no. 84, pp. 47–60. (in English with Japanese abstract)
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- Nomura, S. and Maeda, H., 2008:
- Significance of autochthonous fossil barnacles from the Miocene Natori group at the Moniwa-Goishi area, northeast Japan.
- Paleontological Research, vol. 12, no. 1, pp. 63–79.
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- Obata, I., Shibata, K., Matsukawa, M. and Unwin, D. M., 2007:
- New record of a pterosaur from the Late Cretaceous Izumi group, Awaji island, Hyogo Prefecture, Japan.
- Annual Report, Fukada Geological Institute, no. 8, pp. 149–162.
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- Oji, T. and Kitazawa, K., 2008:
- Discovery of two rare species of stalked crinoids from Okinawa trough, southwestern Japan, and their systematic and biogeographic implications.
- Zoological Science, vol. 25, no. 1, pp. 115–121.
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- Okutani, T., Fujiwara, Y., Sasaki, T., Kawato, M., Yamamoto, T. and Kubokawa, K., 2006:
- Tanea magnifluctulata (Gastropoda: Naticidae) collected near whale carcasses dumped off the Satsuma peninsula, Kyushu.
- Chiribotan, vol. 37, no. 3, pp. 124–129. (in English with Japanese abstract)
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