Pteridopsida - Ophioglossidae - Ophioglossidae
Parent taxon: Filicopsida according to P. Kenrick and P.R. Crane 1997
Sister taxa: Achradosporis, Apiculatasporites, Chelepteris, Choffatia, Cingulatisporites, Clavatisporites, Clavatriletes, Cyathidites, Deltoidospora, Echinatisporis, Foveasporis, Granulatisporites, Grapnelispora, Interlobulites, Ischyosporites, Kirchheimerisporites, Leiotriletes, Lepidodendrites, Matonisporites, Monolites, Osmundacidites, Pteridacidites, Scabramonoletes, Todisporites, Triletes, Triloboxylon, Waltzispora, Vittariaceae, Kyrtomisporis, Lygodioisporites, Magnastriatites, Lametatriletes, Reticuloidosporites, Lophosoriaceae, Hymenophyllopsidaceae, Psilotidae, Capsispora, Crassoretitriletes, Cheiropleuriaceae, Monachosoraceae, Polypodiaceoisporites, Striatella, Marsileales, Lygodiidites
Subtaxa: Ophioglossales Psilotales