Division Dinoflagellata diagnosis
|Citation: Dinoflagellata ( Bütschli 1885) Fensome et al. 1993b.|
Diagnosis:Organisms in which the motile stage has two flagella, one ribbon-like with multiple waves, which beats to the cell\'s left, the other beating towards the posterior, with only one or a few waves. Mitosis is closed, with an extranuclear mitotic spindle.