The Assemblage of Gastropod Fossils in Zanda Basin of Tibet
详细信息
- 责任者：Han Jian’en (Institute of Geomechanics ; Chinese Academy of Geological Sciences ; Beijing 100081 ; China) ; Yu Jia
- 刊名：Acta Geoscientica Sinica
- 出版年：2012
- 卷期：33(2)
- 关键词：腹足纲 ; Gastropoda ; 生物地层学 ; biostratigraphy ; 西藏 ; Tibet
- 页码：p.153-166
- 图表：6 illus., 2 plates, 4 tables, 25 refs.
- 分类号：1103
- issnNo：ISSN1006-3021
- isbnNo：CN11-3474/P
摘要
A number of gastropod fossils were discovered in the 4th lithologic member of Guge Formation within Zanda Basin of Tibet, with the identification of an assemblage of Adelinella regularis-Velutinopsis which comprises Adelinella regularis Yü, Velutinopsis spiralis Yü, Radix zandaensis sp. nov and Hippeutis cf. minor (Ping). Based on a comparison with the existing species of gastropod, the authors hold that the gastropod in the fossil strata in Zanda Basin might have lived in a shallow littoral lake environment. The sporopollen reveals that the place where the gastropod in the fossil strata lived was an environment of warm and moist forest-grasslands.