[1] The class consists of a single order, the Spiculogloeales, together with an additional, unassigned genus, Meniscomyces.

Species in the genus Spiculogloea form hyphal states that produce auricularioid (laterally septate) basidia and are parasitic on other fungi.

[2] The genus Spiculogloea was described in 1996 and provisionally placed in the order Platygloeales within the former class Heterobasidiomycetes.

[4] In 2004, molecular research, based on cladistic analysis of DNA sequences, indicated that an unnamed Spiculogloea species clustered together with an equally unnamed Mycogloea species, forming a well-supported clade[5] that was later referred to as the new order Spiculogloeales.

[2][6] A subsequent molecular study based upon seven genes indicated that the Spiculogloeales formed a basal lineage distinct from the Agaricostilbomycetes.