Difurcosphenophyllum Lotsy, 1909 genus accepted

Tristachya Lilpop, 1937 genus synonym

Rotularia Sternberg, 1821 genus synonym

Sphenophyllum A.T.Brongniart, 1828 genus doubtful

Lilpopia H.J.Conert & F.Schaarschmidt, 1970 genus accepted

Bowmanites E.W.Binney, 1871 genus accepted

Mesidiophyton G.A.Leisman, 1964 genus accepted

Cheirostrobus D.H.Scott, 1897 genus accepted

Sphenophyllostachys A.C.Seward, 1896 genus synonym

Sphenophyllites A.T.Brongniart, 1822 genus synonym

Xihuphyllum Q.-S.Chen, 1988 genus doubtful