Related how?

Biota (Life)
Eukaryote (Eukarya)
Chromista
Harosa
Halvaria
Heterokonta
Ochrophyta (Heterokontophyta)
Phaeista
Limnista
Fucistia
Xanthophyceae (Yellow-green algae)
Mischococcales

Ophiocytiaceae (18668794)

Children (2 direct children, 3 direct and indirect children):

Ophiocytium (tree size 1)

Ophiothrix