Phylum Amoebozoa Lühe, 1913
Subphylum Lobosa Carpenter, 1861
see Infraphylum Lobosa Carpenter, 1861
Class Discosea Cavalier-Smith, 2004
Subclass Longamoebia Cavalier-Smith & Smirnov, 2011
Order Thecamoebida Smirnov & Cavalier-Smith, 2011 [monotypic]
Family Thecamoebidae Schaeffer, 1926
Genus Thecamoebaᵀ Fromentel, 1874
Thecamoeba striata (Penard, 1890) Schaeffer, 1926