Rhombodinium draco subsp. freienwaldense

"subsp. freienwaldense" (Gocht, 1955, p.87; text-figs.2a-b) Lentin and Williams, 1973, p.120.  Holotype: Gocht, 1955, text-fig.2b.  NOW Rhombodinium freienwaldense.  Originally Rhombodinium draco forma freienwaldense, subsequently Rhombodinium draco subsp. freienwaldense, thirdly (and now) Rhombodinium freienwaldense.  Taxonomic senior synonym (at specific rank): Rhombodonium 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 draco subsp. freienwaldense (as Rhombodinium freienwaldense).  Age: mid Oligocene. Parent: Rhombodinium draco