Domain Eucaryota
   Subdomain Amoebota Doweld (2001)
     Kingdom Spongiobiota Doweld, 2001 [monotypic]
       Subkingdom Spongiobiotina Doweld, 2001 [monotypic]
         Phylum Spongiozoa Doweld, 2001
           1 Subphylum Spongiozoina Doweld, 2001
           2 Subphylum Sycettozoina Doweld, 2001 [monotypic]
           3 Subphylum Archaeocyathozoina Doweld, 2001