living organisms see Clade Biota Wagner 2004 [Wiemann, de Queiroz, Rowe, Planavsky, Anderson, Gogarten, Turner & Gauthier 2020]
   Superkingdom Eukaryotae see Domain Eukaryota Chatton, 1925
     Kingdom Plantae Haeckel (1866) - plants
       Subkingdom Thallobionta
         Division Eumycota see Kingdom Eumycota
           Subdivision Mastigomycotina
             Class Chytridiomycetes Cejp (1957), nom. inval. see Class Chytridiomycetes Moebius (1929)
               Order Chytridiales J.Schröt. (1886)
                 Series Inoperculatae see Order Chytridiales J.Schröt. (1886)
                   Family Achlyogetonaceae Sparrow (1942)
                     1 Genus Achlyogeton Schenk (1859)
                     2 Genus Septolpidium Sparrow (1933)
                     3 Genus Bicricium Sorokīn (1889), nom. conf.