ammonites
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Class Pteridopsida Ritgen 1828 (ferns)

PaleoDB taxon number: 263811

Invalid subtaxa: Filicophyceae [replaced name] (no. 55181), Filicopsida Pfefferkorn 1976 (no. 54002), Polypodiopsida Cronquist et al. 1966 (no. 196331)

Parent taxon: Pteridophyta according to A. B. Doweld 2001

Sister taxa: Acrostichum, Auritulinasporites, Cardioangulina, Cibotiumspora, Cingulatipollenites, Clavatasporites, Concavisporites, Converrucosisporites, Divisisporites, Duplexisporites, Eodelopterum, Eodelopterum priscum, Foveogleicheniidites, Gabonisporis, Haplostigma, Impardecispora, Lycopsida, Microfoveolatosporis, Microreticulatisporites, Muricingulisporis, Murospora, Pilosisporites, Polycingulatisporites, Psilatriletes, Psilotopsida, Rhacophytales, Rubinella, Saadisporites, Scolecopteris, Scortea, Trilobosporites, Triplanosporites, Tuberositriletes, Uralia, Velosporites, Verrucosisporites

Subtaxa: Achradosporis, Apiculatasporites, Apiculatisporites, Baculatisporites, Capsispora, Cheiropleuriaceae, Cicatricososporites, Cingulatisporites, Cladophlebis, Clavatisporites, Clavatriletes, Concavissimisporites, Crassoretitriletes, Cyatheales, Cyathidites, Cyclosorus, Davalliaceae, Deltoidospora, Echinatisporis, Foveasporis, Gleicheniales, Grammitidaceae, Granulatisporites, Grapnelispora, Hymenophyllaceae, Hymenophyllopsidaceae, Interlobulites, Ischyosporites, Kirchheimerisporites, Kyrtomisporis, Laevigatosporites, Lametatriletes, Leiotriletes, Lomariopsidaceae, Lophosoriaceae, Lygodiidites, Lygodioisporites, Magnastriatites, Marattiaceae, Marattiidae, Marattisporites, Marsileales, Matonisporites, Metaxyaceae, Monachosoraceae, Monolites, Nephrolepidaceae, Oleandraceae, Onychiopsis, Ophioglossaceae, Ophioglossidae, Osmundacidites, Osmundales, Peromonolites, Plagiogyriaceae, Polypodiaceae, Polypodiaceoisporites, Polypodiales, Polypodiidae, Psilotidae, Pteridacidites, Reticuloidosporites, Salviniales, Scabramonoletes, Schizaeales, Striatella, Tempskyaceae, Thelypteridaceae, Todisporites, Triletes, Trilites, Tuberculatosporites, Vittariaceae, Waltzispora

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