THE SHANITA FAUNA (PERMIAN FORAMINIFERA) FROM BAOSHAN AREA, WESTERN YUNNAN

The foraminiferal materials described and figured in the present paper were collected from the Permian Da'aozi Formation in Woniusi Section of Baoshan area, western Yunnan. Systematic study shows that the characteristic genera, i.e., Shanita and Hemigordiopsis, of the Shanita fauna in Baoshan area contain 8 species, including 2 new species. Besides, 10 other genera of non-fusulinid foraminifers have also been recognized from the fauna. Further study has revealed that the Shanita fauna in Baoshan area can be correlated to those from Burma, Peninsular Thailand and Tibet with an age of late Maokouan (Lengwuan) to Wuchiapingian. However, the relatively lower generic diversity and occurrence of some endemic species, as well as the absence of fusulinaceans may indicate the regional characteristics of Shanita fauna in Baoshan area.

Project Supported:

Clc Number:

Q915.811.1 P534.46