Domain Eucaryota Subdomain Chlorota Doweld (2001) Kingdom Euglenobiota Leedale ex Doweld (2001) Subkingdom Euglenobiotina Dillon ex Doweld (2001) Phylum Spironematellozoa Doweld, 2001 [monotypic] Class Spironematellatea Doweld, 2001 [monotypic] Order Spironematellida Doweld, 2001 [monotypic] Family Spironematellaceae P.C. Silva (1980) Genus Spironematella P.C.Silva (1970)