Class Lobosea (Carpenter, 1861) Cavalier-Smith, 1993
see Subphylum Lobosa Carpenter, 1861
Subclass Gymnamoebia (Haeckel, 1862) Cavalier-Smith, 1993
see [unranked] Gymnamoebae
Order Leptomyxida Pussard & Pons, 1976
Suborder Rhizoflabellina Page, 1987
see Order Leptomyxida Pussard & Pons, 1976
1 Family Flabellulidae Bovee, 1970
2 Family Leptomyxidae Pussard & Pons, 1976