asexual fungi R.T.Moore (1980) - fungi
   Phylum Ascomycota Caval.-Sm. (1998) - sac fungi
     Subphylum Pezizomycotina O.E. Erikss. & Winka (1997)
       Class Leotiomycetes O.E. Erikss. & Winka (1997)
         Order Helotiales Nannf. (1932)
           Family Chaetomellaceae Baral, P.R. Johnst. & Rossman (2015)
             Genus Pilidium Kunze (1823), nom. sanct.