Parent taxon: Pinophyta according to A. B. Doweld 2001
Sister taxa: Condylites, Masculostrobus, Palaeocyparis, Pinopsida, Podocarpopsida, Satyrites incertus, Voltziopsida, Polysolenoxylon, Cornucarpus, Surangephyllum, Zalesskioxylon, Rotundaspermum, Scirroma, Pakuriospermum, Palispermum, Aethophyllum, Megaporoxylon, Niponophyllum, Taxineae, Sonajorispermum, Prototaxoxylon, Birsinghpuria, Taxopitys, Bennettitales, Parapalaeoxylon, Cordaitopsida, Paradoxospermum, Gondwanophyllites, Araucariales, Polyloboxylon, Prototaxopitys, Coniferales, Tanaidocarpidium, Trigonomyelon, Nidispermum, Maheshwariella, Otofeistia, Coniferae, Bulbospermum, Taxaliospermum, Archaeosperma, Triangulospermum, Retortistoma, Nummulospermum, Collospermum, Kryshtofovichiella, Platycardia, Pyriformispermum, Voltziostrobus, Kamthioxylon, Tanaidia, Palaeocarpus, Barakaroxylon, Stereocarpus, Carpodium, Sujfunophyllum, Shivacarpus, Cardiocarpum, Belemnopteris, Sertostrobus, Sclerospiroxylon, Indoxylon, Stephanostoma, Kaokoxylon, Damudoxylon, Cupressoconus, Entylissa, Nandorioxylon, Uesuguipollenites, Arberiella, Pantiaspermum, Alatocarpus, Savitrispermum
Subtaxa: Marskea Tomharrisia
Distribution:
• Jurassic of Georgia (1 collection), Poland (1), the Russian Federation (1), the United Kingdom (3), Uzbekistan (3)
Total: 9 collections including 12 occurrences