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Simonsen, R. (1975). On the pseudonodulus of the centric diatoms, or Hemidiscaceae reconsidered. In: R. Simonsen (ed.), Proceedings of the Third Symposium on Recent and Fossil Marine Diatoms, Kiel, September 9-13, 1974. Beihefte zur Nova Hedwigia , 53: 83-98
268759
Simonsen, R.
1975
On the pseudonodulus of the centric diatoms, or Hemidiscaceae reconsidered
In: R. Simonsen (ed.), Proceedings of the Third Symposium on Recent and Fossil Marine Diatoms, Kiel, September 9-13, 1974. Beihefte zur Nova Hedwigia
53: 83-98
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Actinocyclus kuetzingii (A. Schmidt) Simonsen, 1975 accepted as Coscinodiscus kuetzingii var. kuetzingii Schmidt in Schmidt et al., 1878 (new combination reference)
