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 Zygomycotina nom. nud. see Phylum Zygomycota Moreau (1954)
             Class Zygomycetes G.Winter (1880) see Class Zygomycetes Caval.-Sm. (1998)
               Order Zoopagales E.A. Bessey ex R.K. Benj. (1979)
                 Family Piptocephalidaceae Sred. (1873)
                   Genus Piptocephalis de Bary (1865)
                     Piptocephalis cylindrospora Bainier (1882)
                     Piptocephalis lepidula (Marchal) P.Syd. (1897)
                     Piptocephalis xenophilia