A New Platy-armored Worm from the Early Cambrian Chengjiang Lagerstatte,South China  

作　　者：HAN Jian, ZHANG Xingliang, ZHANG Zhifei and SHU Degan Early Life Institute and Department of Geology, Northwest University, Xi’an, Shaanxi 710069, 

出　　处：《Acta Geologica Sinica(English Edition)》2003年第1期1-6,共6页地质学报（英文版）

基　　金：supported by the Natural Science Foundation of China(NSFC);the Ministry of Science and Technology(CMST)of China

摘　　要：The Lower Cambrian Chengjiang Lagerstatte provides a good window to explorethe origin and radiation of early bilaterians. Here we describe a netted sclerite-bearing wormTabelliscolex hexagonus gen. et sp. nov., and tentatively assign it to palaeoscolecidans ofpriapulids. The cuticle of the animal is covered with two kinds of platy sclerites which areconstructed by hexagonally arranged tubercles Similar structures of the sclerites can be seen onsome Cambrian palaeoscolecidans and lobopods, so, this new species is critical for understanding therelationships between lobopods and palaeoscolecidans.The Lower Cambrian Chengjiang Lagerstatte provides a good window to explorethe origin and radiation of early bilaterians. Here we describe a netted sclerite-bearing wormTabelliscolex hexagonus gen. et sp. nov., and tentatively assign it to palaeoscolecidans ofpriapulids. The cuticle of the animal is covered with two kinds of platy sclerites which areconstructed by hexagonally arranged tubercles Similar structures of the sclerites can be seen onsome Cambrian palaeoscolecidans and lobopods, so, this new species is critical for understanding therelationships between lobopods and palaeoscolecidans.

关 键 词：Chengjiang Lagerstatte CAMBRIAN PRIAPULIDA sclerites China 

分 类 号：Q915[天文地球—古生物学与地层学]