Foraminifera taxon details
From editor or global species database
Diagnosis Test in a low trochospiral coil, planoconvex, about two whorls visible on the flat spiral side, 'only the four to five chambers of the final whorl visible on the strongly convex umbilical side, sutures curved and flush on the spiral side, sinuate on the umbilical side, periphery angular, carinate; wall calcareous, finely perforate, surface smooth; aperture umbilical, irregularly rounded, bordered with an imperforate lip. U. Cretaceous (Santonian to Campanian); Western Australia. (Loeblich & Tappan, 1987, Foraminiferal Genera and Their Classification) [details]
From editor or global species database
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