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| Author | : | Rat, P. |
| Year of publication | : | 1959 |
| Reference letter | : | a |
| Title | : | Les pays crétacés basco-cantabriques (Espagne). |
| Publishing house | : | Université de Dijon |
| Vol/No/Pages/Plates | : | Thèse, 520 pp., 9 pls. |
| Published in | : | Dijon |
References:
Orbitolina aperta - p. 327 = Mesorbitolina aperta ERMAN 1854