Family Athyriaceae Alston 1956 (fern)
Polypodiopsida - Polypodiales - Polypodiidae
Parent taxon: Polypodiales according to PPG. I 2016
Sister taxa: Aspleniineae, Clavatosporis, Dennstaedtiineae, Drynariaceae, Karstenia, Lindsaeineae, Polypodiineae, Polypodiisporites, Pteridineae, Saccolomatineae, Saportaea
Subtaxa: Dickwhitea Diplazium
Ecology: "photoautotroph"
Distribution:
• Quaternary of India (1 collection)
• Miocene to Pliocene of Japan (2)
• Eocene of Canada (1: British Columbia)
Total: 4 collections including 5 occurrences