Classification
provided by World Register of Marine Species
Also in database as valid genus in Planorbulinidae (Foraminifera)
Gross, O. (2001). Foraminifera, in: Costello, M.J. et al. (Ed.) (2001). European register of marine species: a check-list of the marine species in Europe and a bibliography of guides to their identification. Collection Patrimoines Naturels, 50: pp. 60-75
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Diagnosis
provided by World Register of Marine Species
Test large, attached, formed by a few encrusting layers of chambers that are closely appressed, polygonal in outline, and somewhat inflated, with convex upper surface, chambers of successive layers alternating in position, groups or clusters of chambers may form knobs that are slightly elevated above the general surface; wall calcareous, of fibrous calcite, without perforations other than the large apertural pores; aperture consists of large pores on the upper surface of the chambers. L. Oligocene 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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