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Kociolek, J.; Danz, A. (2022). Taxonomy and valve ultrastructure of new and interesting freshwater fossil diatoms (Bacillariophyta) of Miocene age from the Espanola Formation of New Mexico, U.S.A. II. Description of a New Grunowia species with comments on the genus. Phytotaxa. 530(3): 295-300.