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Biota (Life)
Eukaryote (Eukarya)
Chromista
Harosa
Rhizaria
Foraminifera
Lagenida
Polymorphinoidea
Polymorphinidae
Polymorphininae

Sigmoidella (22917822)

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

Sigmoidella bortonica

Sigmoidella elegantissima

Sigmoidella kagaensis

Sigmoidella margaretae

Sigmoidella prolata

Sigmoidella pulcherrima

Sigmoidella seguenzana

Sigmoidella silvestrii