"Heterococcoliths"
   "Muroliths"
     Order †Eiffellithales Rood, Hay & Barnard (1971)
       1 Family †Chiastozygaceae Rood, Hay & Barnard (1973)
       2 Family †Eiffellithaceae Reinhardt (1965)
       3 Family †Rhagodiscaceae Hay (1977)