Gambierdiscus toxicusAdachi & Fukuyo, 1979 is, so far, a species in a monotypic genus assigned to the Goniodomaceae by Steidinger and Tangen (1993). It is a medium to large armored dinoflagellate with strong anterio-posterior compression and an ascending cingulum with a recurved distal end. In apical view, the cell appears sublenticular. The cell covering is divided into plates that are named following the kofoidian nomenclature of dinoflagellate thecal plate series for armored species, e.g. ...
