Xystonellidae
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Superregnum: Eukaryota
Regnum: Chromista
Subregnum: Harosa
Infraregnum: Alveolata
Phylum: Ciliophora
Subphylum: Intramacronucleata
Infraphylum: -
Classis: Oligotrichea
Subclassis: Oligotrichia
Ordo: Choreotrichida
Subordo: Tintinnina
Familia: Xystonellidae
Genera: Parafavella – Parundella – Xystonella – Xystonellopsis
Name edit
Xystonellidae Kofoid & Campbell, 1929