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 Trichomycetes Alexop. (1962) see Suborder Trichomycina Cavalier-Smith, 2012
               Order Harpellales Lichtw. & Manier (1978)
                 Family Harpellaceae L. Léger & Duboscq ex P.M.Kirk & P.F. Cannon (2007)
                   1 Genus Harpella L. Léger & Duboscq (1929)
                   2 Genus Stachylina L. Léger & M. Gauthier (1932)
                   3 Genus Carouxella Manier, Rioux & Whisler (1965)