Coccolithophyceae - Watznaueriales
Parent taxon: Prymnesiophyceae according to P. R. Bown and J. R. Young 1997
Sister taxa: Athenagalea, Biantholithus, Braarudosphaerales, Ceratolithaceae, Coccolithales, Coccosphaerales, Daktylethra, Discoasterales, Ellipsagelosphaeraceae, Ellipsolithus, Gladiolithus, Ilselithina, Isochrysidales, Lanternithus, Minylitha, Neosphaera, Pedinocyclus, Phaeocystales, Prymnesiales, Rhomboasteraceae, Tetralithoides, Transversopontis, Zygodiscales, Stephanolithiales, Eodiscoaster, Discoasteroides, Calyptrosphaeraceae, Podorhabdales, Cyclicargolithus, Prymnesiophycidae, Tetralithus, Syracosphaerales, Sphenolithus, Lapideacassaceae, Arkhangelskiales, Goniolithaceae, Eiffellithales
Subtaxa: Watznaueriaceae
Ecology: passively mobile planktonic "photoautotroph"
Distribution:
• Pliocene of Indian Ocean (4 collections)
• Miocene of Indian Ocean (9)
• NN1 of Indian Ocean (2)
• Oligocene of Germany (1)
• Paleocene of Argentina (4), North Atlantic (7), Tanzania (1), United States (1: South Carolina)
• Cretaceous of Argentina (12), Austria (1), Belgium (1), Canada (7: Alberta), Egypt (6), France (1), Germany (1), Indian Ocean (114), Israel (1), North Atlantic (4), North Pacific (20), Romania (2), Slovakia (2), South Atlantic (4), South Pacific (1)
• Jurassic of France (1), Germany (10), Morocco (7), Saudi Arabia (15), Spain (115), Switzerland (1)
Total: 355 collections including 892 occurrences