It was introduced by Luttrell (1951) to accommodate genus
Microascus which was originally placed in family
Ophiostomataceae (Nannfeldt 1932, Emmons and Dodge 1931; Doguet 1957). Then Malloch (1970) validated the family and accepted genera,
Kernia,
Lophotrichus and
Petriellidium in the family. It has 60 species in 2023. ==Species==