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: Late Devonian–Late Permian
Geinitzina fossil from the Permian period of Rote formation, Alborz province, Iran
Scientific classification Edit this classification
Domain: Eukaryota
Clade: Diaphoretickes
Clade: SAR
Phylum: Retaria
Subphylum: Foraminifera
Class: Fusulinata
Superfamily: Geinitzinacea
Family: Geinitzinidae
Bozorgnia 1973[1]
Genera

References

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  1. ^ Bozorgnia, F. (1973). Paleozoic foraminiferal biostratigraphy of central and east Alborz Mountains, Iran. National Iranian Oil Company, Geological Laboratories, Publication. 4: 1-185., available online at https://archive.org/details/Bozorgnia1973Searchable
  • Alfred R. Loeblich Jr and Helen Tappan, 1988. "Forminiferal Genera and their Classification". Archived from the original on 16 June 2012. Retrieved 9 March 2013.
  • Geinitzinidae Paleobiology Database, 9 March 2013