Group †Calcitarcha G.J.M. Versteegh, T. Servais, Streng, Munnecke & Vachard (2009), incertae sedis [polyphyletic] - calcispheres
   †Pithonelloid taxa
     Genus †Navarella G.J.M. Versteegh, T. Servais, Streng, Munnecke & Vachard (2009) see Genus Navarrella Trejo (1993)