Coccolithophyceae - Eiffellithales
Parent taxon: Prymnesiophyceae according to P. R. Bown and J. R. Young 1997
Sister taxa: Athenagalea, Biantholithus, Braarudosphaerales, Ceratolithaceae, Coccolithales, Daktylethra, Discoasterales, Ellipsagelosphaeraceae, Ellipsolithus, Gladiolithus, Ilselithina, Isochrysidales, Lanternithus, Minylitha, Neosphaera, Pedinocyclus, Phaeocystales, Prymnesiales, Rhomboasteraceae, Tetralithoides, Transversopontis, Zygodiscales, Tetralithus, Eodiscoaster, Podorhabdales, Sphenolithus, Watznaueriales, Arkhangelskiales, Prymnesiophycidae, Lapideacassaceae, Goniolithaceae, Stephanolithiales, Cyclicargolithus, Calyptrosphaeraceae, Syracosphaerales, Discoasteroides
Subtaxa: Chiastozygaceae Eiffellithaceae Rhagodiscaceae
Ecology: passively mobile planktonic "photoautotroph"
Distribution:
• Quaternary of Indian Ocean (2 collections)
• Pliocene to Pleistocene of Indian Ocean (1)
• Pliocene of Indian Ocean (2)
• Miocene of Indian Ocean (8), North Pacific (1), Slovenia (1)
• Eocene of North Atlantic (16), North Pacific (1)
• Paleocene to Eocene of North Atlantic (2), South Pacific (2)
• Paleocene of Argentina (14), Indian Ocean (7), North Atlantic (36), South Atlantic (1), South Pacific (15), Tanzania (1), United States (2: Missouri)
• Cenozoic of Indian Ocean (5)
• Cretaceous to Paleogene of North Atlantic (1), South Pacific (3)
• Cretaceous of Argentina (29), Austria (1), Belgium (1), Canada (7: Alberta), Egypt (5), France (1), Germany (1), Indian Ocean (185), Israel (1), North Atlantic (12), North Pacific (20), Romania (1), South Atlantic (10), South Pacific (1), Spain (67), Tanzania (7), United States (4: Alabama, Georgia, Kansas)
• Jurassic of Canada (1: Alberta), Germany (8), Morocco (3), Saudi Arabia (3), Spain (120), Switzerland (1)
Total: 610 collections including 1860 occurrences