AlethopterisW
Alethopteris
AnnulariaW
Annularia
Araucarioxylon arizonicumW
Araucarioxylon arizonicum
CalamitesW
Calamites
CladophlebisW
Cladophlebis
CycadeoideaW
Cycadeoidea
CyclopterisW
Cyclopteris
DiploporaW
Diplopora
FlorissantiaW
Florissantia
MaciveraW
Macivera
MacroneuropterisW
Macroneuropteris
MesocyparisW
Mesocyparis
NeuropterisW
Neuropteris
PalmoxylonW
Palmoxylon
PecopterisW
Pecopteris
PseudoborniaW
Pseudobornia
SagenopterisW
Sagenopteris
SigillariaW
Sigillaria
StigmariaW
Stigmaria
Williamsonia (plant)W
Williamsonia (plant)