Timidonella
Genus of single-celled organisms
Timidonella Temporal range: Toarcian ~183–182 Ma PreꞒ Ꞓ O S D C P T J K Pg N ↓ | |
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Scientific classification | |
Domain: | Eukaryota |
(unranked): | SAR |
(unranked): | Rhizaria |
Phylum: | Retaria |
Subphylum: | Foraminifera |
Class: | Globothalamea |
Order: | |
Family: | |
Genus: | Timidonella Bassoullet et al 1974 |
Timidonella is a genus of large middle Jurassic forams, with microspheric tests up to 8 millimetres (0.31 in) 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
- ^ a b Timidonella GSI Foraminifera