Phylum Basidiomycota R.T.Moore (1980) - basidiomycetes Subphylum Agaricomycotina Doweld (2001) Class Agaricomycetes Doweld (2001) Order Atheliales Jülich (1982) Family Atheliaceae Jülich (1982) Genus Tretomyces K.H. Larss., Kotir. & Saaren. (2011)