Foraminifera taxon details
From editor or global species database
Diagnosis Test discoidal, proloculus followed by welldeveloped early coil, with whorls aligned, sigmoidal or oscillating, lacking a central stellate area but with rounded to angular nodosities filling most of the chamber lumen; wall with inner dark wall layer entirely covered by the radial layer throughout the test. Carboniferous (L. to M. Visean); W. Europe; USSR; Iran; North America. (Loeblich & Tappan, 1987, Foraminiferal Genera and Their Classification) [details]
From editor or global species database
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