Parent taxon: Gymnospermae according to Gorozhankin 1904
Sister taxa: Aethophyllum, Alatocarpus, Allicospermum, Arberiella, Archaeosperma, Barakaroxylon, Belemnopteris, Bennettitales, Birsinghpuria, Bulbospermum, Cardiocarpum, Carpodium, Collospermum, Coniferae, Coniferales, Cordaitopsida, Cornucarpus, Cupressoconus, Damudoxylon, Entylissa, Gondwanophyllites, Indoxylon, Kamthioxylon, Kaokoxylon, Kryshtofovichiella, Lyginopteridopsida, Maheshwariella, Megaporoxylon, Nandorioxylon, Nidispermum, Niponophyllum, Nummulospermum, Otofeistia, Pakuriospermum, Palaeocarpus, Palispermum, Pantiaspermum, Paradoxospermum, Parapalaeoxylon, Platycardia, Polyloboxylon, Polysolenoxylon, Prototaxopitys, Prototaxoxylon, Pyriformispermum, Retortistoma, Rotundaspermum, Savitrispermum, Scirroma, Sclerospiroxylon, Sertostrobus, Shivacarpus, Sonajorispermum, Stephanostoma, Stereocarpus, Sujfunophyllum, Surangephyllum, Tanaidia, Tanaidocarpidium, Taxaliospermum, Taxineae, Taxopitys, Triangulospermum, Trigonomyelon, Uesuguipollenites, Voltziostrobus, Zalesskioxylon, Cerebropollenites, Accintisporites, Lasiostrobus, Eddya, Lobatoxylon, Parataxopitys, Rugubivesiculites, Tungussocarpus, Trisocladus, Striomonosaccites, Cycadinoxylon, Lagenospermopsida, Decussosporites, Falcisporites, Ashmoripollis, Indusiisporites, Dinophyton, Pteridospermaexylon, Pilasporites, Ktalenia, Taeniopitys, Galeacornea, Pteridospermopsida, Taxacites, Minutosaccus, Protopolyporoxylon, Zonallapollenites, Svalbardoxylon, Prototaxodioxylon, Protopitys, Amdrupia, Paradoxoxylon, Gnetaceaepollenites, Exesipollenites, Sofrepites, Reticulopitys, Shanbeipollenites, Perinopollenites, Scotoxylon, Majsassia, Tordoxylon, Cedripites, Embergerixylon, Solenoxylon, Antarcticoxylon, Darneya, Yezonia, Parcisporites, Enzonalasporites, Alisporites, Squamae, Menaispermae, Protocircoporoxylon, Yorkoxylon
Subtaxa: none
Ecology: "photoautotroph"
Distribution: