Cephalopods of the “Falang Formation” (Triassic) from Guanling and Zhenfeng Counties, Guizhou Province, China

作     者：HAO Weicheng, SUN Yuanlin, JIANG Dayong, YANG Shouren and WANG Xinping Geological Museum, Peking University, Beijing 100871 

作者机构：Peking Univ Geol Museum Beijing 100871 Peoples R China 

出 版 物：《Acta Geologica Sinica(English Edition)》 (地质学报（英文版）)

年 卷 期：2003年第77卷第4期

页      面：430-439页

核心收录：

学科分类：070903[理学-古生物学与地层学(含：古人类学)] 0709[理学-地质学] 07[理学] 

基　　金：This work was supported by Peking University and HD Foundation of the Ministry of Education of China(01006) 

主　　题：ammonites nautiloids 'Falang Formation' Carnian Triassic Guizhou China 

摘      要：The Falang Formation of western Guizhou was previously called the Halobia Bed and considered to be I .adinian in age. It was subdivided upward into the Zhuganpo, Laishike and Longchang members based on ammonites and the Trachyceras multitubertulatum Zone of the Longchang Member was put in the Lower Carnian. Here in the present paper, 4 genera and 9 species of ammonites and 1 nautiloid genus and species collected from the upper part of the Falang Formation (i.e. the Wayao Formation used in this paper, equivalent to the Laishike Member from Guanling and Zhenfeng counties are described. The geological and geographical distribution of these cephalopods, as well as the co-existing conodonts, put the Wayao Formation to the late early Carnmian.