摘要
本文介绍了湖北长阳花桥下奥陶统几丁虫的分布发育规律，讨论了几丁虫的地质意义，并与国内外同期地层作了对比，指出了该几丁虫动物群生物古地理的亲缘关系，并对部分几丁虫种进行了拟定与描述．
here are abundant chitinozoan in the Early Ordovician of Huaqiao at Changyang of Hubei Province. According to the characteristics of their vertical stratigraphic range, three assemblages are recognized. In ascending order, they are Lagenochitina of. destombesi assemblage, Conochitina symmetrica assemblage and Conochitina mamagouensis sp. nov. assemblage. Based on the occurrence of Sagenachitina oblmlga of COnochitina mamagouensis sp. nov. assemblage, it is concluded that the Early Ordovician chitinozoan fauna from Huaqiao has an affinity with that of north Gondwana margin in biogeography.
出处
《现代地质》
CAS
CSCD
1994年第3期259-263,T002,共6页
Geoscience
关键词
湖北
几丁虫
下奥陶世
Hubei Province, Early Ordovician, chitinozoa
