| 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 4 | December 1991 | 
           
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                |  | Akira KATO: | P.119 | 
              
                |  | Glaucochroite-tephroite intergrowth from the Kanoiri mine, Kanuma City, Tochigi Prefecture, Japan |  | 
              
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                |  | Tatsuaki KIMURA, Atsushi OKUBO, Hiroshi MIYAHASHI: | P.129 | 
              
                |  | Cuticular study of Ptilophyllum leaves from the Lower Cretaceous Choshi Group, in the Outer Zone of Japan |  | 
              
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                |  | Nobuo YAMAGIWA, Katsu ISOBE: | P.153 | 
              
                |  | A new species of Durhamina (Rugosa) from the "Fujiwaradake Limestone", Suzuka Mountains, Central Japan |  | 
              
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                |  | Kazuo SAKAMOT0, Teruya UYENO: | P.165 | 
              
                |  | Hippoglossoides kumaishi, a New Miocene Righteye Flounder from Oshima Peninsula, Hokkaido, Japan |  |