Urostylida incertae sedis
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Superregnum: Eukaryota
Regnum: Chromista
Subregnum: Harosa
Infraregnum: Alveolata
Phylum: Ciliophora
Subphylum: Intramacronucleata
Infraphylum: Spirotrichia
Classis: Spirotrichea
Subclassis: Stichotrichia
Ordo: Urostylida
Familia: Urostylida incertae sedis
Genera:
Biholosticha –
Notocephalus –
Paramitrella –
Trichogaster –
Uncinata