Biota (Life)
Eukaryote (Eukarya)
Diaphoretickes (Plants+hc+sar megagroup)
Sar (Sar supergroup)
Heterokont (Stramenopile)
Raphidophyte (Raphidophyceae)
Heterosigmataceae
Children (1 direct children, 1 direct and indirect children):
Heterosigma akashiwo