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 Bloxamiaceae Locq. ex Hern.-Restr., Gené, R.F.Castañeda, J. Mena, Crous & Guarro (2017) [monotypic]
           1 Genus Bloxamia Berk. & Broome (1854)