Eukaryota Chatton, 1925 - eukaryotes see Domain Eukaryota Chatton, 1925
   [crown] Amorphea Adl et al. 2012, nom. cl. inval. see Clade Amorphea Adl et al. 2012 [Simpson, Medina & Adl 2020]
     Supergroup Amoebozoa Lühe, 1913 see Phylum Amoebozoa Lühe, 1913
       Protosteliida Olive & Stoianovitch, 1966 see Order Protosteliida Olive & Stoianovitch, 1966
         Genus Protostelium Olive & Stoianovitch, 1960