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| Author | : | Nagao, T. |
| Year of publication | : | 1933 |
| Title | : | A new variety of Toucasia carinata (Matheron) from the Lower Cretaceous of Japan. |
| Journal | : | Hokkaido Daigaku Rigakubu (Journal of the Faculty of Science, Hokkaido Imperial University) |
| Vol/No/Pages/Plates | : | (4), 2: 163-167, pls. 21, 22 |
| Published in | : | Sapporo |