Domain Eucaryota
   Subdomain Amoebota Doweld (2001)
     Kingdom Amoebobiota Doweld, 2001
       Subkingdom Coelodendrobiotina Doweld, 2001
         Phylum Coelodendrozoa Doweld, 2001
           Class Cyrtocalpatea Doweld, 2001
             1 Order Thalassicollida Doweld, 2001
             2 Order Cyrtocalpida Doweld, 2001