Parent taxon: Gymnospermae according to H. N. Andrews 1970
Sister taxa: Condylites, Masculostrobus, Palaeocyparis, Pinopsida, Podocarpopsida, Satyrites incertus, Taxopsida, Voltziopsida, Parapalaeoxylon, Pyriformispermum, Maheshwariella, Stephanostoma, Arberiella, Nidispermum, Nandorioxylon, Coniferae, Surangephyllum, Cardiocarpum, Entylissa, Paradoxospermum, Savitrispermum, Bulbospermum, Cupressoconus, Sclerospiroxylon, Pakuriospermum, Sertostrobus, Platycardia, Damudoxylon, Bennettitales, Gondwanophyllites, Alatocarpus, Triangulospermum, Pantiaspermum, Cordaitopsida, Sonajorispermum, Palaeocarpus, Zalesskioxylon, Voltziostrobus, Otofeistia, Taxopitys, Barakaroxylon, Polysolenoxylon, Kamthioxylon, Trigonomyelon, Prototaxopitys, Archaeosperma, Taxaliospermum, Palispermum, Indoxylon, Taxineae, Rotundaspermum, Stereocarpus, Birsinghpuria, Sujfunophyllum, Nummulospermum, Megaporoxylon, Cornucarpus, Scirroma, Aethophyllum, Carpodium, Tanaidocarpidium, Prototaxoxylon, Collospermum, Uesuguipollenites, Coniferales, Polyloboxylon, Kryshtofovichiella, Kaokoxylon, Tanaidia, Retortistoma, Belemnopteris, Araucariales, Shivacarpus
Subtaxa: Niponophyllum cordaitiforme
Type: Niponophyllum cordaitiforme
Distribution: there are no occurrences of Niponophyllum in the database
 Specimen images are retrieved through the ePANDDA API.
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