Parent taxon: Angiospermae according to M. E. Collinson et al. 2012
Sister taxa: Aachenoxylon, Acer florigerum, Aceriphyllum, Achaenites, Actinidiophyllum, Aesculiphyllum, Afropollis, Amborellales, Ameghinoites, Ancoraecarpon, Anthites, Appomatoxia, Araliophyllum, Araliphyllum, Archaefructaceae, Aulacoxylon, Austrobaileyales, Berendtia, Bresciphyllum, Cantia, Carolites, Carpantholithes, Carpiniphyllum, Carpolithus, Cedrelospermites, Chondrophyton, Cinnamomiphyllum, Complexiopollis, Coronicutis, Corylocarpinus, Costicutis, Cucubalites, Dejaxpollenites, Dicotyledoneae, Dieune, Dodonaeaecarpum, Eorhiza, Ettingshausenia, Euanthus, Evodioxylon, Finiversicutis, Flabellicula, Globocarpon, Glossocarpellites, Hamamelidoxylon, Hesperidophyllum, Intuticutis, Involucrum, Jordania, Juglandiphyllum, Lagenella, Lagenoidea, Lamids, Lappacarpus, Lausaticutis, Leyrida, Limnophyllum, Magnoliids, Mesangiosperms, Monocarpellites, Monocotyledoneae, Montsechia, Montsechites, Morophyllum, Mulleroxylon, Naiadaceae, Nymphaeales, Ochthodocaryon, Oculopollis, Ornoxylon, Palackya, Pandanophyllum, Papillopollis, Paraalnipollenites, Pataloxylon, Phyllodermium, Pilicoronicutis, Pilisolicutis, Plantaginopsis, Platycoila, Pleiacron, Plicapollis, Proteophyllum, Proteopsis, Protorchis, Pseudoplicapollis, Qingganninginfructus, Retimonocolpites, Rhamnophyllum, Rhoedales, Rhoophyllum, Riboidoxylon, Rohlfsia, Ronzocarpon, Rosenkrantzia, Rosids, Rottia, Sabulia, Sahnipushpam, Salicinoxylon, Salicites, Santalacites, Sassendorfites, Saxonicutis, Schafhautlia, Semioculopollis, Sendelia, Sezannia, Silicophyllum, Sjogrenia, Staphidoides, Statzia, Staubia, Stephanoxylon, Suevioxylon, Symphorocarpophyllum, Ternstroemioxylon, Tetracolpites, Tetrapollis, Tetraporopollenites, Thuringicutis, Triphyllum, Triplicarpus, Trudopollis, Tubericutis, Virgaticutis, Wessexia, Woburnia, Xulinosprionites, Yubaria
Subtaxa: Beckettia Mastixia Mastixioid Mastixiopsis
Ecology: "photoautotroph"
Distribution:
• Miocene of Germany (23 collections), Poland (1)
• Oligocene of Germany (8), the United Kingdom (1)
• Eocene of Germany (2), the United Kingdom (9), United States (2: Oregon, Virginia)
Total: 46 collections including 54 occurrences