''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. Distinctly coiled microspheric tests are as much as 2 mm wide and 1.6 mm high. Megalospheric tests are smaller, up to 1.5 mm high and 1.1 mm wide.
''Spiraloconulus'' is known from the middle Jurassic of France, Italy, Sardinia, and Arabia. ''
Timidonella
''Timidonella'' is a genus of large middle Jurassic forams, with microspheric tests up to in diameter. Smaller megalospheric tests may be fan-shaped or kidney-shaped to discoidal with breadths to slightly over 2 mm and a constant thicknes ...
'' is another
spirocyclind from the same time, but with a wider distribution.
References
* ''Spiraloconulus'' page in GSI Foraminifer e-boo
{{Taxonbar, from=Q22286471
Loftusiida
Prehistoric Foraminifera genera
Jurassic life