Coccolithophyceae - Prymnesiophycidae - Prymnesiophycidae
Parent taxon: Prymnesiophycidae according to P. R. Bown and J. R. Young 1997
Sister taxa: Braarudosphaeraceae, Centosphaera, Ceratolithina, Ceratolithoides, Chiphragmalithus, Coccolithites, Coccolithus, Cricolithus, Cruciplacolithus, Discoaster, Eoconusphaeraceae, Haqius, Kokia, Liliasterites, Markalius, Marthasterites, Microrhabdulaceae, Neochiastozygus, Orthogonoides, Pontosphaera, Prinsiosphaera, Prolatipatella, Repagulum, Rhabdolithus, Schizosphaerellaceae, Tortolithus, Triquetrorhabdulus, Watkinsia, Zygolithus, Zygrhablithus
Subtaxa: Faviconus Nannoconus
Ecology: passively mobile planktonic "photoautotroph"
Distribution:
• Cretaceous of Austria (1 collection), France (1), Germany (1), North Pacific (3), Spain (4)
Total: 10 collections each including a single occurrence