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)
         Class Oomycetes G.Winter (1880) - oomycetes see Class Peronosporea
           Order Myzocytiopsidales M.W. Dick (2001) see Order Peronosporales
             Family Myzocytiopsidaceae M.W. Dick (1997)
               Genus Protascus P.A. Dang. (1903), nom. conf.