目　次 国立科学博物館研究報告 C類（地質学・古生物学） Bulletin of the National Science Museum Series C (Geology & Paleontology)		発行年月 ページ
研究報告 C類（地質学・古生物学） 第15巻 第3号 Bulletin of the National Science Museum Series C (Geology & Paleontology) Volume 15 Number 3		September 1989
	:	P.81
	Satoshi MATSUBARA, Akira KATO:
	Manganbabingtonite from Mitani, Kochi City, Japan
		P.93
	Jong Heon KIM:
	Sphenophyllum sp. (Sphenophyllales) newly found from Upper Triassic Baegunsa Formation, Nampo Group, Korea.
	:	P.97
	Atsushi OKUBO, Tatsuaki KIMURA:
	Nilssonia yezoensis, sp. nov., from the Upper Cretaceous Hakobuchi Group, in Hokkaido, Japan.
		P.109
	Yukimitsu TOMIDA:
	A New Walrus (Carnivora, Odobenidae) from the Middle Pleistocene of the Boso Peninsula, Japan, and its Implication on Odobenid Paleobiogeography