Geinitzinidae
Geinitzinidae is an extinct family of Foraminifera from the late Paleozoic (U Dev. – U Perm) included in the Fusulinida that comprises genera characterized by unserial tests (chambers arranged in a single row, or line, in which walls are double layered. The outer layer is of light colored hyaline (glassy) radial calcite. The inner layer is a dark, secreted, microgranular calcite.
| Geinitzinidae Temporal range: | |
|---|---|
| Geinitzina fossil from the Permian period of Rote formation, Alborz province, Iran | |
| Scientific classification | |
| Domain: | Eukaryota |
| Clade: | Diaphoretickes |
| Clade: | SAR |
| Phylum: | Retaria |
| Subphylum: | Foraminifera |
| Class: | †Fusulinata |
| Superfamily: | †Geinitzinacea |
| Family: | †Geinitzinidae Bozorgnia 1973 |
| Genera | |
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