Kingdom Fungi R.T.Moore (1980) - fungi
   Phylum Chytridiomycota Doweld (2001)
     Class Chytridiomycetes Moebius (1929)
       Order Chytridiales J.Schröt. (1886)
         Family Pseudorhizidiaceae Doweld (2014) [monotypic]
           Genus Pseudorhizidium M.J. Powell, Letcher & Longcore (2013) [monotypic]
             1 Pseudorhizidium endosporangiatumᵀ (Karling) M.J. Powell, Letcher & Longcore (2013)