Citation: Gambierdiscoideae Fensome et al. 1993b.
Diagnosis: Goniodomineans in which the posterior sulcal homologue is external to the sulcus, in which the ventral pore is lacking, and in which the motile cell is more or less strongly compressed anteriorly-posteriorly. Type genus: Gambierdiscus Adachi and Fukuyo 1979.
Coolia Meunier 1919.
Gambierdiscus Adachi and Fukuyo 1979. Ostreopsis Schmidt 1902.
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