Foraminifera taxon details
Present Inaccurate Introduced: alien Containing type locality
From editor or global species database
Diagnosis Test elongate, circular in section, with high trochospiral coil, about five broad and low, strongly oblique chambers per whorl, enrolled around an open umbilicus, septal walls commonly resorbed, perhaps during reproduction, sutures obscured by ornamentation; wall calcareous, optically radial, finely perforate, surface with prominent longitudinal costae nearly perpendicular to the sutures but oblique to the test axis, costae may be continuous and occasionally bifurcate, or may be somewhat irregular and rugose in appearance, terminal face with radial striae; aperture interiomarginal, umbilical, in a depressed part of the terminal face; sexual reproduction plastogamic. Oligocene to Holocene; cosmopolitan, on shallow water reefs. (Loeblich & Tappan, 1987, Foraminiferal Genera and Their Classification) [details]
From editor or global species database
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