Suborder Gonyaulacineae
From dinoflaj2
| Gonyaulacaleans in which the hyposomal tabulation is sexiform, i.e. in which the first antapical homologue (*1\'\'\'\') contacts the sixth postcingular homologue (*6\'\'\') and in which the posterior intercalary homologue (*1p) extends further to the anterior than the posterior sulcal homologue (*ps). Distinctive postcingular horns are absent. | ||
 | ||
| Six precingular plates. | Five precingular plates. | |
| MORE | CERATOCORYACEAE | |
 |  | |
