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
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| Geinitzina fossil from the Permian of Iran | |
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| Superfamily: | Geinitzinacea Bozorgnia 1973 |
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The Geinitzinacea differs from the Nodosinellacea in that in the Nodosinellacea the inner layer is fibrous.
Two families are included, the Geinitzinidae and Pachyphloiidae.
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