Rhombodinium freienwaldense
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?freienwaldense (Gocht, 1955, p.87; text-figs.2a–b) Costa and Downie, 1979, p.44. Holotype: Gocht, 1955, text-fig.2b. Originally Rhombodinium draco forma freienwaldense, subsequently Rhombodinium draco subsp. freienwaldense, thirdly (and now) Rhombodinium? freienwaldense. Questionable assignment: Williams et al. (2015, p.311). Taxonomic senior synonym (at specific rank): Rhombodinium rotundatum, by implication in Costa and Downie (1979, p.44), who believed Rhombodinium freienwaldense to be the senior name — however, Grabowska in Malinowskiej and Piwockiego (1996, p.343) retained Rhombodinium freienwaldense. Grabowska in Malinowskiej and Piwockiego (1996, p.343) also proposed this combination. Age: middle Oligocene.
Parent: Rhombodinium