''Timidonella'' is a genus of large middle Jurassic forams, with microspheric tests up to in diameter. Smaller megalospheric

tests Test(s), testing, or TEST may refer to: * Test (assessment), an educational assessment intended to measure the respondents' knowledge or other abilities Arts and entertainment * ''Test'' (2013 film), an American film * ''Test'' (2014 film), ...

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'' GSI Foraminifera
/ref> ''Timidonella'' has been found in the middle Jurassic of France, Italy, Sardinia, Iran, and Madagascar. ''

Spiraloconulus ''Spiraloconulus'' is a genus of middle Jurassic forams with a coarsely agglutinated, microgranular, calcareous wall. The test is large, conical to cylindrical, coiled somewhat straight; the early coiled stage results in a flattened apex. Di ...

'', ''

Streptocyclammina ''Streptocyclammina'' is a genus of benthic forams with a flattened test from the Jurassic. The test (or shell) usually starts off streptospiral (coiled irregularly) hence the name, and becomes planispiral in the mature stage. Chambers are nume ...

'', and ''

Spirocyclina ''Spirocyclina'' is a genus of large forams, with a flat test as much as 10mm in diameter. Coiling is planispiral to slightly asymmetric and mostly involute, some becoming uncoiled with a straight final stage. The final whorl, or stage, has abo ...

'' are among related genera.

References

{{Taxonbar, from=Q22286475 Loftusiida Prehistoric Foraminifera genera Toarcian life Jurassic animals of Asia Fossils of Thailand Fossil taxa described in 1974