Parent taxon: Eukaryota according to E. Taylor et al. 2008
Sister taxa: Allonema, Archaeplastida, Chlorobiota, Chromalveolata, Chromista, Conglobocella, Dinophyta, Euglenophyta, Melanocyrillium, Opisthokonta, Palaeosiphonella, Plantae, Protista, Protozoa, Prymnesiophyta, Rhizaria, Rhizopodea, Stramenopila
Subtaxa: Acanthodiacrodium Acanthorytidodiacrodium Acanthozonodiacrodium Angularia Appendisphaera Applanopsis Archaeodiscina Archaeofavosina Archaeohystrichosphaeridium Archaeoperisaccus Archaeopertusina Ascostomocystis Asperatopsophosphaera Asteridium Bacillidinium Bacisphaeridium Baltisphaeridium Brochopsophosphaera Buedingiisphaeridium Ceratocystidiopsis Chuaria Circulisporites Cirrifera Clavaticystis Codonia Codoniella Comasphaeridium Concentricystes Coronopsis Cristallinium Cyclodictyon Cyclopsiella Cymatiosphaera Cymatiosphaeroides Dasydiacrodium Dasyrytidodiacrodium Deunffia Dictyosphaeridium Dictyotidium Dimastigobolus Diplofusa Disphaeria Domasia Domasiella Epicephalopyxis Estiastra Eupoikilofusa Filisphaeridium Fromea Gemmuloides Gorgonisphaeridium Granomarginata Halodinium Halophoridia Heliosphaeridium Kildinella Korilophyton Korojonia Lacunalites Leiofusa Leiomarginata Leiominuscula Leiopsophosphaera Leiosphaera Leiosphaeridia Leiosphaeridium Limbicysta Lophodiacrodium Lophominuscula Lophorytidodiacrodium Lophosphaeridium Lophozonodiacrodium Lunulidia Lusatia Margominuscula Mecsekia Megasacculina Membranolimbus Membranosphaera Micrhystridium Microconcentrica Microforaminiferal Microrugosina Navifusa Nucellosphaeridium Nummus Ocalasphaera Odontothrix Ooidium Operculites Ophiobolus Orygmatosphaeridium Palaeobion Palaeocryptidium Palaeostomocystis Peteinosphaeridium Piperodinium Platycystidia Poikilofusa Polyedrosphaeridium Priscotheca Protoarchaeosacculina Protocridosphaeridium Protoleiosphaeridium Protosphaeridium Prototrematosphaeridium Pterocystidiopsis Pterospermopsimorpha Pterospermopsis Pterosphaeridia Quisquilites Recticystis Retisphaeridium Schismatosphaeridium Schizocystia Simia Simsangia Singraulipollenites Solisphaeridium Spicadinium Staplinium Stictosphaeridium Stylodiniopsis Symplassosphaeridium Synsphaeridium Tetrabrachiophora Trachydiacrodium Trachyhystrichosphaera Trachysphaeridium Trematosphaeridium Triangulopsis Trigonopyxidia Trigonopyxis Variomargosphaeridium Vavososphaeridium Veryhachium Wilsonastrum Zonooidium Zonosphaeridium
Distribution:
• Miocene of Argentina (1 collection), Azerbaijan (2), United States (1: Maryland)
• Oligocene of Argentina (1), Azerbaijan (3)
• Eocene to Oligocene of Chile (1)
• Eocene of Antarctica (1), Myanmar (5), United States (1: Alaska)
• Paleocene of Argentina (1)
• Cretaceous of Antarctica (9), Argentina (6), Brazil (2), Canada (3: Northwest Territories, Saskatchewan), Chile (4), Cote D'Ivoire (3), Egypt (4), India (2), Israel (7), Mexico (1), Portugal (5), the Russian Federation (1), Senegal (1), South Sudan (7), the United Kingdom (1), United States (7: Kansas)
• Jurassic to Cretaceous of India (2)
• Jurassic of Argentina (2), France (1), India (4), the Russian Federation (9), the United Kingdom (1)
• Triassic to Jurassic of the United Kingdom (1)
• Triassic of Antarctica (1), Canada (1: Alberta), Greenland (1), Hungary (19), Ireland (2), Israel (36), Madagascar (1), the Netherlands (1), Norway (18), Poland (2), Turkey (1)
• Buntsandstein of Germany (20), Poland (1)
• Leonard of Canada (1: Alberta)
• Permian of Canada (2: Nunavut), Germany (3), Greenland (1), India (1), Ireland (10), Norway (11), Poland (15)
• Rotliegendes of Norway (12)
• Devonian of Canada (2: Nunavut), China (1), the Czech Republic (1), Saudi Arabia (1), Turkey (1), United States (1: Ohio)
• Silurian of Canada (2: Nunavut, Québec), Ireland (1), Norway (4), the Russian Federation (13), Ukraine (1), the United Kingdom (3), United States (1: Florida)
• Ordovician of Canada (3: Quebec, Québec), Estonia (19), the Russian Federation (3), Serbia and Montenegro (1), Spain (3), Sweden (2), the United Kingdom (2), United States (1: Oklahoma)
• Arenig of Spain (1)
• Cambrian of China (5), the Czech Republic (1), Finland (1), Greenland (2), Iran (1), Mongolia (1), Norway (3), the Russian Federation (3), Spain (1)
• Wonokan of Argentina (2)
• Vendian of the Russian Federation (5)
• Ediacaran of Burkina Faso (1), Canada (3: Nunavut), China (5), Estonia (2), Iran (3), Kazakhstan (1), Mongolia (1), Namibia (2), the Russian Federation (2), Spain (1)
• Tonian of Canada (15: Northwest Territories, Yukon), the Congo-Kinshasa (3), the Russian Federation (1), Svalbard and Jan Mayen (2), United States (1: Utah)
• Neoproterozoic of India (1), Norway (3)
• Stenian of Canada (2: Nunavut)
• Ectasian of the Russian Federation (1)
• Calymmian of the Russian Federation (2), United States (3: Montana)
• Mesoproterozoic of Canada (1: Nunavut), India (1)
• Riphean of India (1)
• Statherian of China (2), India (1)
• Proterozoic of United States (1: Arizona)
Total: 414 collections including 933 occurrences