Parent taxon: Pteridophyta according to H. N. Andrews 1970
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, 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, Rhacophytales, 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: Ankyropteris Apotropteris Arpexylon Biscalitheca Botrychioxylon Botryopteris Chacassopteris Clepsydropsis Dineuron Diplolabis Etapteris Grammatopteris Gymnoneuropteris Iridopteridineae Langoxylon Metaclepsydropsis Microzygia Monoscalitheca Protoclepsydropsis Protothamnopteris Radstockia Schizostachys Selenopteris Stauropteris Stelastellara Unatheca Zygopteridaceae Zygopteris
Distribution:
• Permian of China (1 collection), Czechia (1), Germany (7), Indonesia (1), Spain (1), United States (1: Texas)
• Namurian of Germany (1), Spain (1), United States (1: Kentucky)
• Carboniferous of Belgium (1), France (3), Germany (3), the Netherlands (2), Portugal (2), Spain (3), the United Kingdom (23), United States (10: Indiana, Kentucky, New Mexico, Oklahoma)
• Devonian of Belgium (1), United States (9: Indiana, Kentucky, New York, Virginia)
Total: 72 collections including 169 occurrences