Kingdom Fungi R.T.Moore (1980) - fungi
   Phylum Chytridiomycota Doweld (2001)
     Class Rhizophydiomycetes Tedersoo, Sánchez-Ramírez, Kõljalg, Bahram, M. Döring, Schigel, T.W. May, M. Ryberg & Abarenkov (2018) [monotypic]
       Order Rhizophydiales Letcher (2006)
         Family Kappamycetaceae Letcher (2006) [monotypic]
           Genus Kappamyces Letcher & M.J. Powell (2005) [monotypic]
             1 Kappamyces laurelensisᵀ Letcher & M.J. Powell (2005)