Ptilocladiopsis Berthold, 1882 genus accepted

Inkyuleeaceae family accepted

Callithamniaceae family accepted

Spyridiaceae family accepted

Dasyaceae family accepted

Delesseriaceae family accepted

Rhodomelaceae family accepted

Paleothamnion Parker & Dawson, 1965 genus accepted

Wrangeliaceae family accepted

Delesserites (Brongniart) Sternberg, 1833 genus accepted

Ceramiaceae family accepted

Sarcomeniaceae family accepted