Preliminary study on enamel microstructure of Yuanmou Miocene hominoids of China

作     者：赵凌霞 郑良 高峰 姜础 

作者机构：Institute of Vertebrate Paleontology and Paleoanthropology Chinese Academy of Sciences Beijing 100044 China Institute of Archaeology of Yunnan Province Kunming 650118 China Yuanmou Man Museum Yuanmou 651300 China 

出 版 物：《Science China Earth Sciences》 (中国科学（地球科学英文版）)

年 卷 期：2003年第46卷第11期

页      面：1142-1150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)] 060305[历史学-专门史与整体史] 06[历史学] 0709[理学-地质学] 07[理学] 0603[历史学-世界史] 

基　　金：the National Key Research Project of China(Grant No.95-01) the National Natural Science Foundation of China(Grant No.40002003) the Chinese Academy of Sciences(Grant No.970402) 

主　　题：early hominid origin, Yuanmou hominoid, enamel microstructure, dental development. 

摘      要：Preliminary study on enamel microstructure of 5 lower permanent incisors of Late Mio-cene Yuanmou hominoids was conducted using a scanning electron microscope (SEM). The enamel incremental markings, as well as perikymata spacing and its periodicity were observed and counted. Using the perikymata number and periodicity, the crown formation times of the incisors are estimated. The transverse and longitudinal microstructures of the enamel prisms are also ob-served. Comparison of the dental development and enamel microstructure features of Yuanmou hominoids with those of Lufeng hominoids shows that there are similarities and also some differ-ences between them. The relationship between Yuanmou hominoids and early hominids is dis-cussed.