Aneurophyton
Archaeopteris
Early_Carb_lygonopterids
Higher_lygonopterids
Medullosa
Callistophyton
Peltaspermum
Corystospermaceae
Cycadales
Glossopteridales
Caytonia
angiosperms
Bennettitales
Pento_ylon
Ephedra
Welwitschia
Gnetum
Euramerican_cordaites
Ginkgoales
Coniferales