徳島県辷谷地域の黒瀬川帯より後期デボン紀鱗木類Leptophloeumの発見

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概要

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• Late Devonian plant Leptophloeum rhombicum (Dawson, 1862) is newly discovered from the "Suberidani lenticular body" of the Kurosegawa Belt in Tokushima Prefecture, Shikoku, Southwest Japan. The twelve specimens are well-preserved in fine-grained sandstone, and the morphologic information may be useful for paleontological study of Leptophloeum. The presence of the Upper Devonian strata has been confirmed now by this fossil evidence in the Tokushima Prefecture. The bed composed of conglomerate, sandstone and shale, about 20m thick, lies on the Siluro-Devonian Suberidani Group. The relationship between the Upper Devonian and the underlying "Bed G4" of the Suberidani Group seems to be unconformable.

• 2007-01-15

著者

• 安井 敏夫

  横倉山自然の森博物館

関連論文

• 徳島県辷谷地域の黒瀬川帯より後期デボン紀鱗木類Leptophloeumの発見
• O-66 高知県佐川・越知地域に分布する黒瀬川帯下部白亜系の層序と二枚貝フォーナ(9. 地域地質・地域層序)

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