WoRMS taxon details
original description
Hasson, P. F. (1985). New Observations on the Biostratigraphy of the Saudi Arabian Umm er Radhuma Formation (Paleogene) and Its Correlation with Neighboring Regions. <em>Micropaleontology.</em> 31(4): 335-364., available online at https://doi.org/10.2307/1485592 page(s): p. 352 [details] Available for editors [request]
basis of record
Loeblich, A. R.; Tappan, H. (1987). Foraminiferal Genera and their Classification. Van Nostrand Reinhold Company, New York. 970pp., available online at https://books.google.pt/books?id=n_BqCQAAQBAJ [details] Available for editors [request]
From editor or global species database
Diagnosis Test subglobular, trochospiral but bi-involute, eleven to twelve broad and low chambers in the final whorl, sutures limbate and elevated, septa double, with intraseptal canals, umbilical side with labyrinthine and perforated umbilical filling; wall calcareous, optically radial, finely perforate; aperture a short broad interiomarginal and nearly equatorial slit at the base of the smooth, flat to excavated apertural face. L. Eocene (Ypresian); Saudi Arabia. (Loeblich & Tappan, 1987, Foraminiferal Genera and Their Classification) [details]
From editor or global species database
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