dcsimg

Diagnosis

provided by World Register of Marine Species
Test free, narrow and elongate, early stage of the microspheric form with a short trochospiral coil that forms a somewhat swollen initial part, later with numerous chambers in an elongate, narrow biserial stage, megalospheric generation lacks the early trochospiral coil but has an exceptionally large proloculus followed by a similar elongate biserial stage with low chambers and straight, depressed, and horizontal sutures; wall finely agglutinated, interior simple, noncanaliculate, surface smoothly finished; aperture a low arch at the base of the final chamber face. Holocene: West Indies. (Loeblich & Tappan, 1987, Foraminiferal Genera and Their Classification)

Reference

Loeblich, A. R.; Tappan, H. (1987). Foraminiferal Genera and their Classification. Van Nostrand Reinhold Company, New York. 970pp.

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contributor
Tomas Cedhagen [email]