Kingdom Fungi R.T.Moore (1980) - fungi Phylum Neocallimastigomycota M.J. Powell (2007) [monotypic] Class Neocallimastigomycetes M.J. Powell (2007) [monotypic] Order Neocallimastigales J.L. Li, I.B. Heath & L. Packer (1993) Family Neocallimastigaceae I.B. Heath (1983) Genus Caecomyces J.J. Gold (1988) Caecomyces f equiᵀ J.J. Gold (1988)