Cyst-theca relationships of Spiniferites bentorii, S. hyperacanthus, S. ramosus, S. scabratus and molecular phylogenetics of Spiniferites and Tectatodinium (Gonyaulacales, Dinophyceae)

It is well known that modern resting cysts with morphologies matching those of species of the fossil genus Spiniferites germinate into motile cells of the genus Gonyaulax. Different Spiniferites sp...