Acanthodiscus danicus J.Fenner, 1994 † (original description)
Actinoptychus harrensis Fenner, 1994 (original description)
Bicornis J. Fenner, 1994 † accepted as
Fennerbicornis Blanco, 2020 † (original description)
Bicornis incisus (Hajós) Fenner, 1994 † accepted as
Fennerbicornis incisus (Hajós) Blanco, 2020 † (new combination reference)
Bicornis kittonii (Grunow) J.Fenner, 1994 † accepted as
Fennerbicornis kittonii (Grunow) Blanco, 2020 † (new combination reference)
Bicornis pyxilloides Fenner, 1994 accepted as
Fennerbicornis pyxilloides Blanco, 2020 † (original description)
Chaetoceros juetlandicus Fenner, 1994 (original description)
Corethron penicillus (Grunow) Fenner, 1994 accepted as
Skeletonema penicillus Grunow in Van Heurck, 1883 (new combination reference)
Hemiaulus frigidus (Grunow) Fenner, 1994 accepted as
Hemiaulus polymorphus var. frigida Grunow, 1884 (new combination reference)
Hemiaulus gibbosus Fenner, 1994 (original description)
Hemiaulus morsianus (Grunow) Fenner, 1994 accepted as
Hemiaulus polymorphus var. morsiana Grunow, 1884 (new combination reference)
Periptera stylifera (Brun) Fenner, 1994 (new combination reference)
Porotheca danica (Grunow) Fenner, 1994 accepted as
Stephanogonia danica Grunow, 1866 † accepted as
Furtheca danica (Grunow) S.Blanco & C.E.Wetzel, 2016 † (new combination reference)
Pseudopyxilla harrensis Fenner, 1994 (original description)
Pseudopyxilla minuta Fenner, 1994 (original description)
Pseudopyxilla spinosa Fenner, 1994 (original description)
Pseudostictodiscus morsianus (A. Schmidt) Fenner, 1994 accepted as
Stictodiscus morsianus Schmidt in Schmidt et al., 1882 (new combination reference)
Pterotheca kittoniana var. minuta Fenner, 1994 (original description)
Pterotheca sacculifera Fenner, 1994 accepted as
Ktenodiscus saculiferus (J.Fenner) S.Blanco & C.E.Wetzel, 2016 (original description)
Pterotheca simplex Fenner, 1994 accepted as
Ktenodiscus simpliformis (J.Fenner) S.Blanco & C.E.Wetzel, 2016 (original description)
Pterotheca tuffata Fenner, 1994 accepted as
Ktenodiscus tuffatus (J.Fenner) S.Blanco & C.E.Wetzel, 2016 (original description)
Rhaphidophora denica Fenner, 1994 (original description)
Rhizosolenia capensis Fenner, 1994 (original description)
Rhizosolenia fragilis (Grunow) Fenner, 1994 accepted as
Hemiaulus fragilis Grunow, 1884 (new combination reference)
Rhizosolenia homanni Fenner, 1994 (original description)
Rhizosolenia juetlandica Fenner, 1994 (original description)
Rhizosolenia morsensis Fenner, 1994 (original description)
Rutilaria bifurcata Fenner, 1994 (original description)
Sceptroneis harrensis Fenner, 1994 (original description)
Sceptroneis juetlandica (Grunow) Fenner, 1994 (new combination reference)
Sceptroneis palaeocenica (Jouse) Fenner, 1994 (new combination reference)
Sheshukovia abyssorum (Grunow) Z.I.Glezer † accepted as
Triceratium abyssorum var. abyssorum Grunow in Van Heurck, 1883 (new combination reference)
Sheshukovia cellulosa var. simbirskiana (Witt) Fenner, 1994 † accepted as
Triceratium cellulosum var. simbirskiana Witt, 1885 (new combination reference)
Sheshukovia fenestrata (Witt) Gleser, 1984 † accepted as
Triceratium fenestratum Witt, 1885 (new combination reference)
Sheshukovia flos (Ehrenberg) Fenner, 1994 accepted as
Triceratium flos var. flos Ehrenberg, 1855 (new combination reference)
Sheshukovia mirabile (Jouse) Fenner, 1994 (new combination reference)
Sheshukovia sundbyense (Hustedt) Fenner, 1994 accepted as
Triceratium sundbyense Hustedt ex R.Simonsen, 1987 † (new combination reference)
Sheshukovia weissei (Grunow ex Witt) Z.I.Glezer † (new combination reference)
Stellarima primalabiata var. minor Fenner, 1994 (original description)
Trochosira mirabilis f. rugosa Fenner, 1994 (original description)
Xanthiopyxis balaustium Fenner, 1994 (original description)
Xanthiopyxis cristata Fenner, 1994 (original description)
Xanthiopyxis danica Fenner, 1994 (original description)