Timidonella

Timidonella
Temporal range: Middle Jurassic
Scientific classification
Domain: Eukaryota
Phylum: Retaria
Subphylum: Foraminifera
Class: Rotaliata
Order: Textulariida
Family: Spirocyclinidae
Genus: Timidonella
Bassoullet,et al 1974

Timidonella is a large middle Jurassic foram, with microspheric tests up to 8 mm in diameter. Smaller megalospheric tests may be fan-shaped or kidney-shaped to discoidal with breadths to slightly over 2 mm and a constant thickness equal to that of the proloculus. Chambers are numerous. The wall, microgranular calcareous, agglutinated.[1]

Timidonella has been found in the middle Jurassic of France, Italy, Sardinia, Iran, and Madagascar.[1] Spiraloconulus, Streptocyclammina, and Spirocyclina are among related genera.

References

This article is issued from Wikipedia - version of the Wednesday, December 30, 2015. The text is available under the Creative Commons Attribution/Share Alike but additional terms may apply for the media files.