organisms see Clade Biota Wagner 2004 [Wiemann, de Queiroz, Rowe, Planavsky, Anderson, Gogarten, Turner & Gauthier 2020]
   Domain Eukaryota Chatton, 1925 - eukaryotes
     Kingdom Fungi R.T.Moore (1980) - fungi
       Phylum Ascomycota Caval.-Sm. (1998) - sac fungi
         Class Ascomycetes G.Winter (1880) see Phylum Ascomycota Caval.-Sm. (1998)
           Subclass Eurotiomycetidae Doweld (2001)
             Order Onygenales Cif. ex Benny & Kimbr. (1980)
               1 Family Arthrodermataceae Locq. ex Currah (1985)
               2 Family Gymnoascaceae Baran. (1872)
               3 Family Onygenaceae Berk. (1857)