Related how?

Biota (Life)
Eukaryote (Eukarya)
Diaphoretickes (Plants+hc+sar megagroup)
Sar (Sar supergroup)
Heterokont (Stramenopile)
Raphidophyte (Raphidophyceae)

Heterosigmataceae (21292360)

Children (1 direct children, 2 direct and indirect children):

Heterosigma (tree size 1)