Diagnosis
provided by World Register of Marine Species
Test large, discoidal, very thin, early stage with globular chambers in planispiral arrangement, later chambers elongate to vermiform and added irregularly in a single layer; wall calcareous, perforated by septal pores; no aperture other than the pores. Miocene to Holocene; tropical cosmopolitan. (Loeblich & Tappan, 1987, Foraminiferal Genera and Their Classification)
Loeblich, A. R.; Tappan, H. (1987). Foraminiferal Genera and their Classification. Van Nostrand Reinhold Company, New York. 970pp.
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