南盘江地区二叠纪生物礁造架生物的初步研究

在云南东南部、贵州西南部和广西西北部毗邻的南盘江地区,广泛地发育着二叠系生物礁。迄今为止,在本区已发现了42个生物礁露头区。在古代生物礁的研究中,最重要的是研究每个礁体中的造架生物。通过对本区15个礁体的详细研究,这些礁体中的造架生物主要是:串管海绵、纤维海绵、水螅和硬海绵类;次要生物为苔藓虫、管壳石等。在串管海绵亚目中,已发现了塞巴加斯科、瓜达卢佩科、泡腔科、隐腔科和内孢粒腔科的12个属,纤维海绵亚目中有小领针属和盔海绵属。本文中介绍3个新种、2个比较种、3个种、3个未定种。

PRELIMINARY STUDY OF FRAME-BUILDING ORGANISMS FROM PERMIAN IN NANPAN RIVER REGION

The Permian reefs are widely distributed in Nanpan River region, an bordering area of Eastern Yunnan, Southwestern Guizhou and Northwestern Guangxi province, which can be regarded as one of regions with the best developed Permian reef. Up to now about 42 reef outcrops of Permian time have been found in this region.The field of research on ancient reefs is of great importance for studying ihe frame-building organisms in each reefs. Through detailed research on 15 Permian reefs outcropping in this region, it is revealed that the frame-building organisms of these reefs are predominated by Sphinctozoan, Inozoan, Hydrozoan and Tabulozoan, with subordinate organisms including Bryozoan, Tubiphytes and so on.Among the Sphinctozoan, about 12 genera belonging to the families of Sebargasiidae, Gradalupiidae, Cystothalamiidae, Cryptocoeltidae, Intrasporeocoeliidae, have been collect, while there are only two genera of the Inozoan: Peronidella and Corynella.Here, in this paper we present 3 new species 2 compare species, .3 known species and 3 uncertain species.