geinitzinacea geinitzinacea the geintizinacea comprises a superfamily of upper devonian to upper permian uniserial fusulinids (microgranular foraminifera with chambers aligned in a single row), the chamber walls consisting of a dark microgranular inner layer and radially fibrous outer layer. advanced forms show secondary lateral thickening geinitzinaceatemporal range: late devonian - late permian scientific classification (unranked): sar (unranked): rhizaria phylum: granuloreticulosa class: foraminifera order: fusulinida superfamily: geinitzinaceabozorgnia 1973 families see text the geinitzinacea differs from the nodosinellacea in that in the nodosinellacea the inner layer is fibrous. two families are included, the geinitzinidae and pachyphloiidae.