Phylum Basidiomycota R.T.Moore (1980) - basidiomycetes Subphylum Agaricomycotina Doweld (2001) Class Agaricomycetes Doweld (2001) Order Geastrales K. Hosaka & Castellano (2007) Family Sclerogastraceae Locq. ex P.M.Kirk (2008) 1 Genus Sclerogaster R. Hesse (1891)