Coccolithophyceae - Syracosphaerales
Parent taxon: Prymnesiophyceae according to J. R. Young et al. 2003
Sister taxa: Athenagalea, Biantholithus, Braarudosphaerales, Ceratolithaceae, Coccolithales, Daktylethra, Discoasterales, Ellipsagelosphaeraceae, Ellipsolithus, Gladiolithus, Ilselithina, Isochrysidales, Lanternithus, Minylitha, Neosphaera, Pedinocyclus, Phaeocystales, Prymnesiales, Rhomboasteraceae, Tetralithoides, Transversopontis, Zygodiscales, Podorhabdales, Eiffellithales, Lapideacassaceae, Tetralithus, Prymnesiophycidae, Calyptrosphaeraceae, Goniolithaceae, Arkhangelskiales, Cyclicargolithus, Stephanolithiales, Eodiscoaster, Discoasteroides, Sphenolithus, Watznaueriales
Subtaxa: Calciosoleniaceae Rhabdosphaeraceae Syracosphaeraceae Umbellosphaeraceae
Ecology: passively mobile planktonic "photoautotroph"
Distribution:
• NN21 of Indian Ocean (59 collections), North Atlantic (5), North Pacific (30), South Pacific (17)
• Brunhes of North Pacific (9)
• G. ruber PRZ of Indian Ocean (4), North Atlantic (1)
• Quaternary of Indian Ocean (301), Italy (2), North Atlantic (146), North Pacific (99), South Atlantic (2), South Pacific (142)
• G. miocenica HOZ - Atlantic of Indian Ocean (1)
• NN16 of Indian Ocean (53), North Pacific (2), South Pacific (5)
• Pliocene to Pleistocene of Indian Ocean (15), North Atlantic (5), North Pacific (1)
• Pliocene of Indian Ocean (66), Italy (1), North Atlantic (21), North Pacific (40), South Atlantic (4), South Pacific (11)
• NN12 of Indian Ocean (8), North Pacific (2), South Atlantic (2)
• G. tumida/G. nepenthes CRZ - Atlantic of Indian Ocean (5)
• Miocene to Pliocene of Indian Ocean (1), North Atlantic (1), North Pacific (1)
• Neogene of South Pacific (1)
• Miocene of Azerbaijan (1), Indian Ocean (70), North Atlantic (4), North Pacific (46), South Atlantic (1), South Pacific (7)
• Oligocene of Indian Ocean (1), North Atlantic (15), North Pacific (17)
• Eocene to Oligocene of North Atlantic (2), North Pacific (13), South Pacific (1)
• Eocene of Indian Ocean (4), Jordan (1), North Atlantic (129), North Pacific (48), South Pacific (11), Ukraine (4), the United Kingdom (1), United States (4: California, Georgia)
• Paleocene to Eocene of North Atlantic (1)
• Paleocene of Argentina (2), North Atlantic (12), Tanzania (1)
• Paleogene of South Pacific (1)
• Cenozoic of Indian Ocean (1), South Pacific (2)
• Cretaceous of Indian Ocean (1)
Total: 1464 collections including 2103 occurrences