Hazeniaceae family accepted

Vermiporellaceae family accepted

Acrosiphonaceae family synonym

Sarcinofilaceae family accepted

Kraftionemaceae family accepted

Gomontiaceae family accepted

Helicodictyaceae family accepted

Ulotrichaceae family accepted

Rhynchertia D.S.Edwards & A.G.Lyon, 1983 genus doubtful

Gloeotilaceae family accepted

Anatoliporaceae family accepted

Mackiella D.S.Edwards & A.G.Lyon, 1983 genus doubtful

Planophilaceae family accepted

Binucleariaceae family accepted

Tupiellaceae family accepted

Borodinellaceae family accepted

Acrosiphoniaceae family synonym

Collinsiellaceae family accepted