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湖南晚泥盆世短胸节甲鱼类一新属

2004年 第42卷 第2期:P154~161

发表日期:2008-10-15李志恒来源:放大 缩小

编辑:王俊卿 朱 敏

摘要A new eubrachythoracid arthrodire , Phymosteus liui gen. et sp. nov. , is described from theUpper Devonian (Early Famennian) Xiejingshi Formation of Shimen County , Hunan , central China. The specimen under study , a nearly complete nuchal plate , was collected from the upper part ofthe formation in association with plant fossils , such as Leptophloeum guanzhuangense and Cyclostigma hunanense , by Dr. Gen Baoyin of Institute of Botany , Chinese Academy of Sciences in 1990s.The new form is at the pachyosteomorph level of organization having a large nuchal gap and possibly referred to the Selenosteidae of aspinothoracid arthrodires. It is the first record of the aspinothroacid arthrodires from China , but whether it widens the distribution of the Selenosteidae from Europe and North America to Asia needs further fossil materials.

关键词:湖南石门,晚泥盆世,节甲鱼类

卷期:42卷 02期

 

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