Tanaka, H. & Nagumo, T. (2004). Pliocaenicus nipponicus sp. nov., a new freshwater fossil diatom from central Japan. Diatom. The Japanese Journal of Diatomology, 20: 105-111
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Tanaka, H. & Nagumo, T.
2004
Pliocaenicus nipponicus sp. nov., a new freshwater fossil diatom from central Japan