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Cyclostephanos numataensis H. Tanaka & T. Nagumo 2000, p. 20; fig. 2-19
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| Status | Valid | |
| Published in | Tanaka, H. and Nagumo, T. 2000 [ref. 009426]. Cyclostephanos numataensis sp. nov., a new Pleistocene diatom from Central Japan. Diatom. The Japanese Journal of Diatomology 16:19-25. |
| Type | MPC-01092, National Science Museum, Tokyo (fig. 2, 3) | INA card not found. Click here to check this name in the INA website. |
| Type Locality | Yanagimachi, Numata City, Gunma Prefecture, Central Japan. Type material: NUM-106. Dark grey silt of the Numata Lacustrine Deposit, Upper Pleistocene | Language of description | L, E |
| Collector | H. Tanaka, 11 Nov. 1992 | Assessment of record accuracy | likely accurate |