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Imparvalvia laevigatus S. Komura 1992, p. 77-78; fig. A, B 1-7, C 1-6
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| Status | Valid | |
| Published in | Komura, S. 1992 [ref. 007068]. Fine structure of Imparvalvia, a new genus of araphid diatoms. Diatom. The Japanese Journal of Diatomology 7:77-81. |
| Type | Holotype: Figs. B, C, Km-5041 (72) = 10.4 x 130.4 (Fm37051). Type specimens will be deposited in the Research Center of JAPEX | INA card not found. Click here to check this name in the INA website. |
| Type Locality | Km-5041; 141º 54’ 69” E, 45º 15’ 31” N, at the bottom cliff along the Uruyagawa River, southeast of Wakkanai City in the northernmost corner of Hokkaido; the Koitoi Formation of Takahashi and Ishiyama | Language of description | E |
| Collector | | Assessment of record accuracy | likely accurate |