 A study published in May 2020 found that specimens referred to "Asaphestera" represented several unrelated species.Steen (1934)'s original species name Asaphestera platyris was retained for a skull which has been re-evlatuated as the earliest known synapsid.The type species of "Asaphestera" is "Asaphestera platyris", named by Steen (1934) based on three skulls.