黒瀬川構造帯におけるシルル紀コノドントの産出

概要

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Although being preliminary this paper is the first information on the Silurian conodont assemblages from Japan. The Siluro-Devonian stratigraphic sequence of the Kurosegawa tectonic zone in Shikoku has been assigned to late Wenlockian through Couvinian solely from megafossil evidences. The Silurian conodonts newly found by the author from the lower, fossiliferous part of this sequence show this horizon to span between latest Llandoverian and early middle Ludlovian in terms of current conodont biostratigraphy. The mode of occurrence and the composition of recovered assemblages are briefly described herein. The detailed systematic palaeontology will be given under separate title in the near future.
国立科学博物館の論文