古生態学の現状 : 特に群集生態学的な面について軟体動物資料から

概要

論文の詳細を見る
The subjects of paleoecological research have been found chiefly in the reconstruction of paleogeography or environment of the past through analogy between fossil and Recent forms. Paleoecology, however, involves other aspect which deals with the interactions between the organisms and the surrounding environments of the past. In the latter point of view, recognition of the original assemblage of "community" of the past becomes one of the essential problems of paleosynecology. In this paper, the methods of recognition of "communities" of the past of "fossil communities" are briefly discussed, laying stress on the procedures based on the discrimination between the autochthonous and allochthonous occurrences of the fossils. The importance of statistical treatments of fossil assemblages and of the studies of Recent than atocoenoses are also noted in relation to the recognition of "fossil communities". Studies on geographic and stratigraphic distributions of molluscan assemblages and the factors controlling their distributions are summarized with special emphasis on the present state of descriptions of the Japanese Neogene "fossil communities".
日本地質学会の論文
1968-12-28