PaleoDB taxon number: 87646
Parent taxon: Prymnesiophyceae according to J.R Young and P. R. Bown 1997
Sister taxa: Coccolithales, Discoasterales, Isochrysidales, Phaeocystales, Prymnesiales, Zygodiscales, Calyptrosphaeraceae, Goniolithaceae, Watznaueriales, Syracosphaerales, Eiffellithales, Lapideacassaceae, Cyclicargolithus, Sphenolithus, Calcidiscus, Podorhabdales, Stephanolithiales, Arkhangelskiales, Eodiscoaster
Subtaxa: Braarudosphaeraceae, Centosphaera, Ceratolithina, Ceratolithoides, Chiphragmalithus, Coccolithites, Coccolithus, Cricolithus, Cruciplacolithus, Discoaster, Eoconusphaeraceae, Haqius, Kokia, Liliasterites, Markalius, Mathasterites, Microrhabdulaceae, Nannoconaceae, Neochiastozygus, Orthogonoides, Polycyclolithaceae, Pontosphaera, Prinsiosphaera, Prolatipatella, Repagulum, Rhabdolithus, Schizosphaerellaceae, Tetralithus, Tortolithus, Triquetrorhabdulus, Watkinsia, Zygodiscus, Zygolithus, Zygrhablithus
Ecology: passively mobile planktonic "photoautotroph"