Biology:Timidonella

Short description: Genus of single-celled organisms

Timidonella Temporal range: Toarcian ~183–182 Ma PreЄ Є O S D C P T J K Pg N ↓
Scientific classification
Domain:	Eukaryota
(unranked):	SAR
(unranked):	Rhizaria
Phylum:	Retaria
Subphylum:	Foraminifera
Class:	Globothalamea
Order:	Loftusiida
Family:	Spirocyclinidae
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.

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

References

Wikidata ☰ Q22286475 entry