Parent taxon: Pteridophyta according to T. N. Taylor et al. 2009
Sister taxa: Acrostichides, Acrostichophyllum, Actinopteris, Actinostelopteris, Agasopteris, Alcicornopteris, Anastomopteris, Aneimidium, Anotopteris, Aphlebiocarpus, Apiculatisporis, Archaeoxylon, Arcyopteris, Aspideae, Aspidioides, Asplenioides, Aspleniopteris, Asterochlaena, Asterochlaenopsis, Aulacopteris, Auritulinasporites, Bachasupteris, Balantites, Bambakia, Baqueroites, Beinertia, Bellopteris, Benizia, Bernoullia, Biarmella, Bockschia, Bonaventurea, Boweria, Brittsia, Cardioangulina, Cardiopteridium, Carolopteris, Catenopteris, Cephalotheca, Chansitheca, Cheiloleptites, Chorionopteris, Chrysodiopteris, Cibotiumspora, Cingulatipollenites, Clavatasporites, Coenopteridales, Comia, Comipteridium, Concavisporites, Converrucosisporites, Crenaticaulis, Cynepteris, Dactylopteris, Dactylotheca, Danaeides, Deccanites, Delgadoa, Desmophlebis, Dicksoniopteris, Dicropteris, Dictyocallipteridium, Didymosorus, Diplasiophyllum, Diplazites, Diplodendron, Diplophacelus, Discopteris, Distichopteris, Doleropteris, Duplexisporites, Dvinopteridium, Dzergalanella, Eboracia, Emplectopteridium, Eodelopterum, Eodelopterum priscum, Eorhachis, Eskdalia, Filices, Filiciphyllum, Filicites, Filicorachionites, Flicheia, Floropteris, Foliopteris, Forbesia, Fortisia, Fortopteris, Foveogleicheniidites, Gellera, Glenopteris, Glockeria, Glossochlamys, Goeppertella, Goeppertia, Grandeurya, Guptiorachis, Gutbieria, Gymnocaulus, Gyropteris, Halopteris, Hawlea, Hemionitites, Heterofilicites, Hymenophyllea, Impardecispora, Iniopteris, Isiolopteris, Jarenga, Johnstonia, Kandyria, Kankakeea, Karinopteris, Katadromopteris, Katasiopteris, Ketovia, Kidstonia, Knorripteris, Konnoa, Leckenbya, Lescuropteris, Listrophyllum, Lobifolia, Lomatopteris, Lonchopteris, Lopinopteris, Loxopteris, Lycopsida, Lygodites, Marattites, Marcouia, Margaritopteris, Marzaria, Medullosites, Megalopteris, Menopteris, Merianopteris, Mesodescolea, Microdictyon, Microfoveolatosporis, Microreticulatisporites, Mixoneura, Monheimia, Monolete, Mundapteris, Muricingulisporis, Murospora, Myriotheca, Naktongia, Neriopteris, Noeggerathia, Noeopteris, Onocleites, Ophioglossites, Osmundia, Osmundophyllum, Otidophyton, Pachyphyllum, Palaeopteris, Parazola, Parkeriaceae, Parkerioidea, Peremopteris, Permopteridium, Peruviophyllum, Phialopteris, Pilosisporites, Plumatopteris, Poacordaites, Polycingulatisporites, Polypodiopsida, Polypodites, Polytheca, Protoblechnum, Psalixochlaena, Pseudadiantites, Pseudocordaites, Pseudodanaeopsis, Pseudorhacopteris, Psilatriletes, Psilotopsida, Pteridites, Pteridoleimma, Pteridopsida, Pteridorachis, Pteridotheca, Pteropsida, Renaultia, Reussia, Rhabdoxylon, Rhachiopteris, Rhacopteris, Rhizodendron, Rhizomites, Rhizomites, Rubinella, Ruflorinia, Saadisporites, Saccopteris, Sachalinia, Sacheria, Scapanophyllum, Schizaeites, Schizodendron, Sciadipteris, Sclerophyllina, Scleropteridium, Scleropteris, Scolopendrites, Scortea, Selenochlaena, Shirakia, Silesiopteris, Sitzia, Sitzopteris, Sorocladus, Sphegopteris, Sphenopteridium, Sphyropteris, Stachypteris, Staphylopteris, Steffensia, Stewartiopteris, Stipitopteris, Straelenipteris, Strephopteris, Supaia, Surangea, Sylvia, Sylvopteris, Synia, Taenitites, Tedelea, Teilhardia, Tetraptilon, Tetratmema, Thecopteris, Tietea, Trilobosporites, Trimatopteris, Triplanosporites, Tuberositriletes, Tubicaulidaceae, Tungussopteris, Tuzhykoviella, Ungeria, Uralia, Uralopteris, Vargolopteris, Velosporites, Wingatea, Zalesskyella, Zonopteris, Hydropterangium
Subtaxa: Chlidanophyton Ellesmeris Eocladoxylon Protocephalopteris Protopteridophyton Rhacophyton
Distribution:
• Carboniferous of United States (7: Pennsylvania, Virginia collections)
• Devonian of Belgium (11), Canada (1: Northwest Territories), China (1), the Russian Federation (2), United States (10: New York, Pennsylvania, Virginia, West Virginia)
Total: 32 collections including 35 occurrences