†family Eiffellithaceae Reinhardt 1965 (haptophyte alga)
Coccolithophyceae - Eiffellithales - Eiffellithaceae
Parent taxon: Eiffellithales according to P. R. Bown and J. R. Young 1997
Sister taxa: Chiastozygaceae, Rhagodiscaceae
Subtaxa: Diloma Eiffellithus Helicolithus Rothia Tegumentum
Ecology: passively mobile planktonic "photoautotroph"
Distribution: