Phylum Basidiomycota R.T.Moore (1980) - basidiomycetes Subphylum Agaricomycotina Doweld (2001) Class Agaricomycetes Doweld (2001) Order Agaricales Underw. (1899) Family Crassisporiaceae Vizzini, Consiglio & M. Marchetti (2019) Genus Crassisporium Matheny, P.-A. Moreau & Vizzini (2014)