†family Prediscosphaeraceae Rood et al. 1971 (haptophyte alga)
Coccolithophyceae - Podorhabdales - Prediscosphaeraceae
Parent taxon: Podorhabdales according to P. R. Bown and J. R. Young 1997
Sister taxa: Axopodorhabdaceae, Biscutaceae, Calyculaceae, Cretarhabdaceae, Mazaganellaceae, Tubodiscaceae
Subtaxa: Petrarhabdus Prediscosphaera
Ecology: passively mobile planktonic "photoautotroph"
Distribution: