Coccolithophyceae - Watznaueriales
Parent taxon: Prymnesiophyceae according to P. R. Bown and J. R. Young 1997
Sister taxa: Biantholithus, Braarudosphaerales, Ceratolithaceae, Coccolithales, Daktylethra, Discoasterales, Ellipsagelosphaeraceae, Ellipsolithus, Gladiolithus, Ilselithina, Isochrysidales, Lanternithus, Minylitha, Neosphaera, Pedinocyclus, Phaeocystales, Prymnesiales, Rhomboasteraceae, Tetralithoides, Transversopontis, Zygodiscales, Podorhabdales, Eiffellithales, Eodiscoaster, Sphenolithus, Prymnesiophycidae, Lapideacassaceae, Discoasteroides, Tetralithus, Arkhangelskiales, Syracosphaerales, Stephanolithiales, Cyclicargolithus, Goniolithaceae, Calyptrosphaeraceae
Subtaxa: Watznaueriaceae
Ecology: passively mobile planktonic "photoautotroph"
Distribution:
• Oligocene of Germany (1 collection)
• Paleocene of Argentina (2), Tanzania (1), United States (1: South Carolina)
• Cretaceous of Argentina (4), Austria (1), Belgium (1), Canada (7: Alberta), France (1), Germany (1), Israel (1), Romania (2), Slovakia (2)
• Jurassic of France (1), Germany (10), Morocco (7), Saudi Arabia (15), Spain (115), Switzerland (1)
Total: 174 collections including 605 occurrences