Geinitzinoidea
The Geinitzinoidea comprises a superfamily of Upper Devonian to Upper Permian uniserial fusulinids, the chamber walls consisting of a dark microgranular inner layer and radially fibrous outer layer. Advanced forms show secondary lateral thickening
The Geinitzinoidea differs from the Nodosinelloidea in that in the Nodosinelloidea the inner layer is fibrous.
Two families are included, the Geinitzinidae and Pachyphloiidae.