|Citation: Gonyaulacoideae (Autonym).|
Diagnosis:Gonyaulacaceans with an S-type ventral organization, typically neutral torsion and three or four climactal plates excluding small dorsal anterior intercalary plates (so-called "incidental plates"), where present. Of these climactal plates, the first apical homologue (*1\') is reduced or absent. There are six Kofoid precingular plates.
Spiraulax Kofoid 1911b.
?Cannosphaeropsis O. Wetzel 1933b; Cretaceous (Senonian).
Hystrichosphaeropsis Deflandre 1935; Cretaceous (Senonian).
Piccoladinium Versteegh and Zevenboom in Versteegh 1995; Oligocene-Pliocene (Chattian-Piacenzian).