A dinoflagellate cell type in which two flagella are inserted ventrally; one flagellum is transverse and housed in a cingulum (=girdle) and the other is longitudinal and housed in a sulcus. A dinokont dinoflagellate can be a thecated species (with thecal plates) or a naked species (without thecal plates) (Steidinger and Tangen, 1996).