云南澄江早寒武世节肢类与环节类中间性生物——Luolishania gen.nov.  

EARLY CAMBRIAN ARTHROPOD-ANNELID INTERMEDIATE SEA ANIMAL,LUOLISHANIA GEN.NOV.FROM CHENGJIANG,YUNNAN

作　　者：侯先光[1] 陈均远[1] 

机构地区：[1]中国科学院南京地质古生物研究所

出　　处：《古生物学报》1989年第2期207-213,T001,共8页Acta Palaeontologica Sinica

摘　　要：一、前言节肢动物与环节动物之间在分类学上存在着一些中间性地位的生物分支,由于这些生物分支对解开节肢动物起源和系统发生之谜具有重要的科学意义,长期以来为科学界所重视。处于中间地位的现存生物分支或已绝灭的生物分支十分稀少。有爪类(onychophorans)和缓步类(tardigrades)Onychophora and Tardigrada are the living representatives of small side branches with charac- ters somewhat intermediate between those annelids and arthropods.The fossil representatives of the intermediate forms are extremely rare,but interest- ing.Among all fossils discovered in the famous Burgess Shale,none has aroused more interest than Aysheaia due to its mixed nature with intermediate characters between those of arthropods and an- nelids.However,opinions on its phylogenetic af- finities are broadly separate among different au- thors from an onychophoran to a tardigrade af- finity.Our knowledge of the intermediate form in fossil record is supplemented by the discovery of a new taxon,Luolishania longicruris gen.et sp. nov.from the Lower Cambrian Chiungchussu For-

关 键 词：云南澄江 早寒武世 节肢类 环节类 中间性生物分支 

分 类 号：Q915.814[天文地球—古生物学与地层学]