Domain Eucaryota
   Subdomain Chlorota Doweld (2001)
     Kingdom Bacillariobiota Doweld (2001)
       Subkingdom Labyrinthulobiotina Doweld (2001)
         Phylum Pseudodendrozoa Doweld, 2001 [monotypic]
           1 Class Pseudodendratea Doweld, 2001