Taphrinomycotina is one of three subphyla constituting the
Ascomycota (fungi that form their
spores in a sac-like
ascus) and is more or less synonymous with the slightly older invalid name
Archiascomycetes (sometimes spelled
Archaeascomycetes). Recent
molecular studies suggest that the group is monophyletic and basal to the rest of the Ascomycota.