Silicified Angiosperm wood from the Dangu locality (Ypresian of the Gisors region, Eure, France): the problem of root wood

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• 作者：Sakala ; Jakub ; Privé ; -Gill ; Catherine ; K&oelig ; niguer ; Jean-Claude
• 关键词：Paris Basin ; France ; Ypresian ; silicified Angiosperm wood ; root wood ; new species ; bassin de Paris ; France ; Ypré ; sien ; bois silicifié ; d'Angiospermes ; bois de racine ; nouvelle esp&egrave ; ce
• 刊名：Comptes Rendus de l'Academie des Sciences Series IIA Earth and Planetary Science
• 出版年：1999
• 出版时间：April, 1999
• 年：1999
• 卷：328
• 期：8
• 页码：553-557
• 全文大小：411 K

文摘

The problem of root wood is discussed. Based on several specimens of silicified wood from the Dangu locality (Lower Eocene of the Paris Basin), the authors have attempted to explain variations in the wood structure by the origin of the studied woods within the tree. A new species with two new forms is also established.