Subfamily Goniodomoideae

Subfamily Goniodomoideae

Citation: Goniodomoideae (Autonym). Diagnosis:Goniodomaceans in which the posterior sulcal homologue is external to the sulcus. The cell is not compressed anteriorly- posteriorly. Cysts, where developed, are of dinosporin. The first apical homologue is exsert. Type genus: Goniodoma Stein 1883. Extant genera: Goniodoma Stein 1883. (Triadinium Dodge 1981; nomenclatural junior synonym, having same type) ?Pachydinium Pavillard 1915. Fossil genus: Heteraulacacysta Drugg and Loeblich Jr. 1967; Mid Eocene.

Family Goniodomaceae part 2