Children (17 direct children, 42349 direct and indirect children):
Zygopteridales
(tree size 10)
Pteridales
(tree size 2)
Polypodiidae
(tree size 41870)
Leptosporangiate fern
Dennstaedtiales
Equisetidae
(tree size 174)
Davalliales
Hydropteridales
Marsileidae
(tree size 194)
Blechnales
Aculea
(tree size 1)
Alamatus
(tree size 1)
Amanda
(tree size 1)
Triletes
(tree size 1)
Balmeisporites
(tree size 1)
Rhizomopteris
(tree size 1)
Osmundacidites
(tree size 1)
Salviniidae
(tree size 75)