广东二叠纪动物群的古生态

THE PALAEOECOLOGY OF THE FAUNAL FROM PERMIAN SYSTEM IN GUANGDONG

  • 摘要: 广东二叠纪地层分布广泛,尤以粤北、粤东、粤西北发育最好,也是广东的主要含煤地层。二叠纪动物群繁盛,大量的动物化石大多采自泥岩和灰岩,计有138属421种,主要包括(?)、腕足、双壳类、头足类和牙形刺等。根据动物的生态特征、分布状况以及沉积环境,广东二叠纪古生物地理区可分成连阳区和粤北-粤东-粤中区,同时依照不同的年代、不同的地区有12个动物群。这些动物群总属于浅海相和海陆交互相的古生态环境。

     

    Abstract: The Permian sediments are widely distributed in Guangdong, and fully developed in the northern, eastern and western-nothern parts of province, are also main coal-bearing strata. The Permian faunas are very abundant, with a great of fossils, mostly collected from the mudstone and limestone. They consist of 421 species and 183 genera, mainly including Fusulinids, Brachiopoda, Bivalves, Cephalopoda, Conodont and so on. Acording to these faunal palaeoecological qualities, condition of distribution and sedimentary environment, the Permian palaeobiogeography of Guangdong is divided into two regions:the Lianyang region and the northern-eastern-central Guangdong region. Then there are 12 communites in ascending order which belong to the shallow sea water faces or the faces between land and shallow sea water.

     

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