Domain Eucaryota
   Subdomain Chlorota Doweld (2001)
     Kingdom Bacillariobiota Doweld (2001)
       Subkingdom Acanthocystobiotina Doweld, 2001
         Phylum Acanthometrozoa Doweld, 2001 [monotypic]
           Class Acanthometratea Doweld, 2001
             Order Acanthoplegmatida Doweld, 2001
               Family Acanthoplegmidae Schewiakoff, 1926
                 Genus Acathoplegma Doweld, 2001, orth. inval. see Genus Acanthoplegma Schewiakoff