organisms see Clade Biota Wagner 2004 [Wiemann, de Queiroz, Rowe, Planavsky, Anderson, Gogarten, Turner & Gauthier 2020]
   Domain Eukaryota Chatton, 1925 - eukaryotes
     Kingdom Chromista Caval.-Sm. (1981) - chromists
       Phylum Oomycota Arx (1967)
         01 ?Genus Detonisia Gonz. Frag. (1925), nom. dub.
         02 Class Oomycetes G.Winter (1880) - oomycetes see Class Peronosporea
         03 Order Rozellopsidales M.W. Dick (2001), incertae sedis
         04 Order Haptoglossales M.W. Dick (2001), incertae sedis
         05 Family Lagenaceae M.W. Dick (2001), incertae sedis
         06 Family Ectrogellaceae Cejp (1959), incertae sedis
         07 Family Eurychasmataceae H.E. Petersen (1905), incertae sedis
         08 Family Pontismataceae H.E. Petersen ex P.M.Kirk, P.F. Cannon & J.C. David (2001), incertae sedis
         09 Family Sirolpidiaceae Sparrow ex Cejp (1959), incertae sedis
         10 ?Genus Lagenidicopsis N.J. Artemczuk (1972), nom. dub.