The occurrence of the genus Marrella(Trilobitoidea) in Asia  

作　　者：ZHAOYuanlong YUANJinliang ZHUMaoyan YANGXinglian PENGJing 

机构地区：[1]InstituteofPalaeontologyandBiomineralization,SchoolofResourceandEnvironment,GuizhouUniversityofTechnology,Guiyang550003,China [2]NanjingInstituteofGeologyandPalaeontology,ChineseAcademyofSciences,Nanjing210008,China

出　　处：《Progress in Natural Science:Materials International》2003年第9期708-711,共4页自然科学进展·国际材料（英文版）

基　　金：Supported by the National Natural Science Foundation of China (Grant Nos.49772085,40162002 and 40232020),National Climbing Plan of China (95-special-1-6-1),The Ministry of Science and Technology (NS 2002-4567),and the Foundation of the Key and Basic Proj

摘　　要：An important discovery in the Kaili Biota has been made recently, and many interesting components from Chengjiang Biota and Burgess Shale Biota have been discovered. Among them Marrella, only known from mid-Middle Cambrian Burgess Shale Biota of British Columbia, Canada, is one of the most important arthropods fossils. Because the Kaili Biota is older than the Burgess Shale Biota, (he strange head shield of Marrella occurring in the Kaili Biota outside Laurentia ranges from mid-Middle Cambrian to early Middle Cambrian and is significant for the reconstruction of palaeogeography and evolutionary study of early metazoa. In the present paper Marretla sp. is reported for the first time in Asia.An important discovery in the Kaili Biota has been made recently, and many interesting components from Chengjiang Biota and Burgess Shale Biota have been discovered. Among them Marrella, only known from mid-Middle Cambrian Burgess Shale Biota of British Columbia, Canada, is one of the most important arthropods fossils. Because the Kaili Biota is older than the Burgess Shale Biota, the strange head shield of Marrella occurring in the Kaili Biota outside Laurentia ranges from mid-Middle Cambrian to early Middle Cambrian and is significant for the reconstruction of palaeogeography and evolutionary study of early metazoa. In the present paper Marrella sp. is reported for the first time in Asia.

关 键 词：Marrella early Middle Cambrian Kaili Biota Asia. 

分 类 号：Q915.819.1[天文地球—古生物学与地层学] Q915.641[生物学—古生物学]