| Bulletin of the National Science Museum Series C (Geology & Paleontology) | date of publication | 
          
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            | Bulletin of the National Science Museum Series C (Geology & Paleontology)  Volume 17 Number 3 | Septermber 1991 | 
          
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                |  | Toshimasa TANAI, Kazuhiko UEMURA: | P.81 | 
              
                |  | The Oligocene Noda Flora from the Yuya-wan Area of the Western End of Honshu, Japan. Part 2 |  | 
              
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                |  | Atsushi OKUB0, Tatsuaki KIMURA: | P.91 | 
              
                |  | Cupressinocladus obatae, sp. nov., from the Lower Cretaceous Choshi Group, in the Outer Zone of Japan |  | 
              
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                |  | Yoshio FUKUDA, lkuwo 0BATA: | P.111 | 
              
                |  | Upper Cretaceous Chelonian Egg from Hokkaido, Japan |  |