Kingdom Fungi R.T.Moore (1980) - fungi
   Phylum Blastocladiomycota T.Y. James (2007)
     Class Blastocladiomycetes Doweld (2001)
       Order Blastocladiales H.E. Petersen (1909)
         1 Family Blastocladiaceae H.E. Petersen (1909)
         2 Family Catenariaceae Couch (1945), nom. cons. prop.
         3 Family Paraphysodermataceae Doweld (2014) [monotypic]
         4 Family Sorochytriaceae Dewel (1985) [monotypic]
         5 Genus Endoblastidium Codreanu (1931), incertae sedis [monotypic]