†class Radiocyatha Debrenne et al. 1970

Radiocyatha

Parent taxon: Problematica according to P. D. Kruse et al. 2015

Sister taxa: Acanthoclava, Acanthosphaera, Acidotocarena, Acutitheca, Aksuglobulus, Amoebinella, Ampelitocystis, Amphoridium, Ancienta, Andobolus, Animikiea, Anzalia, Archaeooides, Archaeopetasus, Archaeotremaria, Archaeozoon, Aristophycus, Arthroon, Artimyctella, Ascosyrinx, Aspidella, Astropolithon, Aurisella, Babetosphaera, Bactryllium, Bavlinella, Beltania, Beltina, Bensonia, Biconulites, Bicornifera, Bioistodina, Blastophycus, Bolonia, Bosworthia, Botomaella, Bovicornellum, Boyarinovicyathidae, Caelestites, Calciphyton, Calcisphaera, Cambrocassis, Cambroclavida, Cambrogeorgina, Cambrotrypa, Caudomorpha, Caveacus, Cestites, Chalasiocranos, Charaussaia, Chondropogon, Clausisphaera, Clavitella, Cochleatina, Coeloscleritophora, Coleolidae, Coleoloida, Coleoloides, Cristatodus, Cupithecidae, Cyclogeorgina, Cycloites, Cyrtochites, Deccanosporium, Dentachites, Dictyophycus, Dimorphoconus, Dinocardia, Dinomischus, Dolichomocelypha, Draffania, Dvinia, Dystachophycus, Ebriella, Ebrinula, Ediacaria, Emeithella, Emmonsaspis, Enchostoma, Entosphaeroides, Eocucumaria, Eoescharopora, Eoglobella, Eophyton, Eosphaera, Etacystis, Eumuensteria, Eurysolenpora, Fensiangia, Fermoria, Flabetheca, Foerstia, Foliaceria, Fomitchella, Forchhammera, Fusuconcharium, Gigartinites, Globuloella, Gochtia, Gorlovella, Granifer, Greysonia, Gunflintia, Gymnosolen, Hadrophycus, Haliserides, Harttites, Heliophycus, Henaniodus, Hensonella, Heosomocelypha, Heterosculpotheca, Hexagonaria, Himanthalites, Huangshandongella, Huishea, Huizenodus, Humboldtochaeta, Huroniospora, Hydrocytium, Hyphantaenia, Indocera, Isnella, Itieria, Jiangshanodus, Kakabekia, Kazakhstanotubulus, Kelyphosphaera, Kiehnensus, Kinsabia, Koksodus, Korilacus, Krishnania, Labyrinthotuba, Labyrinthus, Ladinella, Lascoa, Lenaella, Leptophycus, Leveilleites, Lianophycus, Libodiscus, Licrophycus, Lithostachys, Lochmophycus, Lonchosaccus, Lukatiella, Mabiania, Mamillodus, Manchuriophycus, Maritimella, Martjanowskia, Mawsonella, Medusinites, Megasphaera, Meghystrichosphaeridium, Melopetasus, Microancientia, Microphycus, Micropylepora, Microschedia, Minjaria, Miratheca, Mitscherlichia, Mobergellidae, Mongoliacus, Mongolitesta, Muensteria, Myxomycites, Nemaphycus, Nematophycus, Nereograpsus, Netrelytron, Newlandia, Nicolarites, Nimbia, Ningqiangsclerites, Niphadus, Palaeobotryllus, Palaeobromelia, Palaeorivularia, Palhistiodinia, Papillomembrana, Parammodochium, Pararchaeomonas, Pararenicola, Parmites, Paropsonemidae, Parvulonoda, Perichoderma, Phyllochiton, Pilievicutis, Pitella, Platydendron, Plexoramea, Plicatolingula, Plinthokonion, Poludia, Polycuppes, Polygonosphaerites, Polysiphonides, Polysiphonidia, Poratites, Porocystis, Portalia, Portelia, Praearenaria, Pragmotheca, Proarchaeocyathus, Problematikum, Protoarenicola, Protobolus, Protopterygotheca, Psamathopalass, Pseudokussiella, Pteromidae, Pterpmus, Ptiloncodus, Punctatus, Pyrgites, Pyxolithus, Quadratapora, Quadrorites, Radiaxialia, Radiomura, Radix, Redkinia, Redoubtia, Resegia, Reticulum, Rhagnura, Rotadiscidae, Rugatotheca, Sagittitheca, Salanacus, Scambocris, Schodackia, Scissotheca, Scolithus, Selenoplax, Seletinicus, Shamovella, Shetlandia, Shinteinella, Siphonema, Solenotia, Sphenopteron, Spinoceras, Spiralella, Spirangium, Spongillopsis, Sporocystis, Spriggia, Stefania, Stictoconus, Stoibostrombidae, Sutivania, Taitia, Taonurus, Tayshira, Tchangsichiton, Theobaldia, Tintinnoidella, Tommotitubulus, Trachyrytidodiacrodium, Trachyzonodiacrodium, Tridia, Tubigeorgina, Tubulella, Tumulduria, Tungussia, Tunudiscus, Turuchania, Tuvinia, Vermiculites, Wushicites, Yangtzesclerites, Yuliunia, Yunnanodus, Zoogleites

Subtaxa: Acanthinocyathida Hetairacyathidae Soanitidae Uranosphaeridae

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Distribution:

• Permian of China (1 collection)

• Chazyan of United States (2: Vermont)

• Whiterockian of United States (2: New York, Utah)

• Arenigian of South Korea (1), United States (6: Nevada)

• Arenig of Argentina (2), China (9), United States (7: Oklahoma, Texas)

• Ordovician of Canada (4: Newfoundland, Newfoundland and Labrador), China (17), Malaysia (1), Norway (1), the Russian Federation (1), South Korea (2), the United Kingdom (1), United States (16: Oklahoma, Texas, Utah)

• Tremadoc of Argentina (2), China (8), South Korea (1), United States (1: Utah)

• Ibexian of United States (1: Utah)

• Cambrian of Antarctica (1), Australia (5), Mongolia (5), the Russian Federation (9)

Total: 106 collections including 110 occurrences

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