Eddya C.B.Beck, 1967 genus accepted

Svalbardia O.A.Høeg, 1942 genus accepted

Palaeopteris W.P.Schimper, 1869 genus synonym

Siderella C.B.Read, 1936 genus accepted

Actinoxylon L.C.Matten, 1968 genus accepted

Actinopodium O.A.Høeg, 1942 genus accepted

Callixylon M.D.Zalessky, 1911 genus accepted

Archaeopteris J.W.Dawson, 1871 genus accepted