Outgroup_to_Seed_Plants

Devonian_seed_fern

Medullosaceae

Caytoniaceae

Glossopteridales

Cycadales

Peltaspermum

Corystospermaceae

Ginkgoales

Coniferales

Cordaitales

Callistophyton

angiosperms

Pentoxylon

Bennettitales

Ephedra

Gnetum

Welwitschia