Parent taxon: Angiospermae according to The Angiosperm Phylogeny Group 2016
See also Chase and Reveal 2009, Jud 2011, Mabberley 2000, McIver and Basinger 1993 and Taylor et al. 2008
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, 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, Ochthodocaryon, Ornoxylon, Palackya, Pandanophyllum, Papillopollis, Pataloxylon, Phyllodermium, Pilicoronicutis, Pilisolicutis, Plantaginopsis, Platycoila, Pleiacron, Proteophyllum, Proteopsis, Protorchis, Retimonocolpites, Rhamnophyllum, Rhoedales, Rhoophyllum, Riboidoxylon, Rohlfsia, Ronzocarpon, Rosenkrantzia, Rosids, Rottia, Sabulia, Sahnipushpam, Salicinoxylon, Salicites, Sassendorfites, Saxonicutis, Schafhautlia, Sendelia, Sezannia, Silicophyllum, Sjogrenia, Staphidoides, Statzia, Staubia, Stephanoxylon, Suevioxylon, Symphorocarpophyllum, Ternstroemioxylon, Tetracolpites, Tetrapollis, Tetraporopollenites, Thuringicutis, Triphyllum, Triplicarpus, Tubericutis, Virgaticutis, Wessexia, Woburnia, Xulinosprionites, Yubaria
Subtaxa: Braseniella Cabombaceae Hydatellaceae Nymphaeaceae
Ecology: "photoautotroph"
Distribution:
• Quaternary of India (15 collections), the United Kingdom (1), United States (3: Florida, North Carolina, South Carolina)
• Pliocene to Pleistocene of Italy (1)
• Pliocene of China (2), Germany (6), Italy (1), Japan (1), Portugal (5), United States (1: Nevada)
• Baodean of China (1)
• Miocene to Pliocene of France (1), Japan (1)
• Miocene of Argentina (1), Canada (1: Northwest Territories), China (1), Denmark (3), Germany (30), Japan (1), Poland (1), Portugal (1), the Russian Federation (16), United States (5: Idaho, Montana, Nevada)
• Oligocene to Miocene of Germany (1), United States (1: Montana)
• Oligocene of the Czech Republic (1), France (1), Germany (3), the Russian Federation (11), the United Kingdom (1), United States (2: Oregon)
• Eocene of Canada (1: British Columbia), Germany (1), India (4), the United Kingdom (10), United States (4: Alaska, California, Washington, Wyoming), Yemen (1)
• Clarkforkian of United States (3: North Dakota, Wyoming)
• Paleocene of Argentina (2), Canada (7: Saskatchewan), China (1), India (1), the United Kingdom (2), United States (45: Colorado, Montana, North Dakota, South Dakota, Wyoming)
• Paleogene of India (1)
• Cretaceous of Argentina (2), Brazil (9), Canada (5: Alberta, British Columbia), Egypt (6), India (2), Jordan (1), Portugal (1), South Sudan (2), Sudan (1), United States (46: Colorado, Kansas, Montana, North Dakota, Texas, Virginia, Wyoming)
Total: 278 collections including 352 occurrences