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| Author | : | Iba, Y. |
| Author 2 | : | Taki, S. |
| Author 3 | : | Yoshida, K. |
| Author 4 | : | Hikida, Y. |
| Year of publication | : | 2005 |
| Title | : | [Orbitolina-bearing limestone pebbles from the lowermost part of the Lower Yezo Group (Lower Cretaceous) in the Nakagawa area, northern Hokkaido, Japan and its significance.] |
| Journal | : | Journal of the Geological Society of Japan (= Nihon-Chishitsu-Gakkai) |
| Vol/No/Pages/Plates | : | 111: 67-73 |
| Published in | : | Tokyo |
References:
Orbitolina (Mesorbitolina) parva - O. (M.) texana - Fig. 4 = Orbitolina gr. parva - texana