Related how?

Biota (Life)
Eukaryote (Eukarya)
Chromista
Harosa
Halvaria
Alveolate (Alveolata)
Ciliophora (Ciliates)
Oligohymenophorea
Peritrichia (Peritrich)

Sessilida (15241269)

Children (8 direct children, 219 direct and indirect children):

Epistylididae (tree size 26)

Sessilina (tree size 108)

Zoothamniidae (tree size 42)

Operculariidae (tree size 6)

Ellobiophryidae (tree size 5)

Lagenophryidae (tree size 8)

Rovinjellidae

Scyphidiidae (tree size 16)