Diagnosis
provided by World Register of Marine Species
Test attached, discoidal, the somewhat irregular early chambers in a trochospiral coil, spiral side flattened against the attachment, chambers inflated on the free side, later chambers low and cyclical, sutures depressed, periphery rounded; wall calcareous, optically radial, more coarsely perforate on the unattached side; aperture of large sutural pores on the attached spiral side and scattered peripheral pores that later become foramina connecting the successive annular chambers. Holocene; Mediterranean. (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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