| 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 15 Number 3 | September 1989 | 
          
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                |  | Satoshi MATSUBARA, Akira KATO: | P.81 | 
              
                |  | Manganbabingtonite from Mitani, Kochi City, Japan |  | 
              
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                |  | Jong Heon KIM: | P.93 | 
              
                |  | Sphenophyllum sp. (Sphenophyllales) newly found from Upper Triassic Baegunsa Formation, Nampo Group, Korea. |  | 
              
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                |  | Atsushi OKUBO, Tatsuaki KIMURA: | P.97 | 
              
                |  | Nilssonia yezoensis, sp. nov., from the Upper Cretaceous Hakobuchi Group, in Hokkaido, Japan. |  | 
              
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                |  | Yukimitsu TOMIDA: | P.109 | 
              
                |  | A New Walrus (Carnivora, Odobenidae) from the Middle Pleistocene of the Boso Peninsula, Japan, and its Implication on Odobenid Paleobiogeography |  | 
              
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