Subfamily Cryptogrammoideae Lindsay 2009 (fern)
Polypodiopsida - Polypodiales - Polypodiidae
Parent taxon: Pteridaceae according to PPG. I 2016
Sister taxa: Adiantopteris, Cheilanthoideae, Contignisporites, Eriosorus, Kolymella, Onychium, Parkerioideae, Pteridoideae, Pterisisporites, Vittarioideae
Subtaxa: Coniogramme Cryptogramma
Ecology: "photoautotroph"
Distribution:
• Miocene of Taiwan (2 collections)
Total: 2 collections each including a single occurrence