Foraminifera taxon details
original description
Barrier, J.; Neumann, M. (1959). Contribution à l'étude de Nonionina cretacea Schlumberger. <em>Revue de Micropaléontologie.</em> 1: 223-229. page(s): p. 228 [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 lenticular, planispirally enrolled, periphery rounded to subangular, globular proloculus followed by short flexostyle, then with evolutely coiled early whorls of regularly enlarging chambers, adult involute, septa slightly oblique and slope backward at the periphery; wall calcareous, porcelaneous, but with umbonal plug of varied size appearing hyaline and fibrous; aperture triangular at the base of the apertural face and may have been provided with a tooth. U. Cretaceous (Coniacian to Maastrichtian); Spain; France; Netherlands. (Loeblich & Tappan, 1987, Foraminiferal Genera and Their Classification) [details]
From editor or global species database
| |