Skara hunanensis a new species of Skaracarida (Crustacea) from Upper Cambrian (Furongian) of Hunan,south China  

作　　者：Liu Jie Dong Xiping 

机构地区：[1]School of Earth and Space Science, Peking University, Beijing 100871, China

出　　处：《Progress in Natural Science:Materials International》2007年第8期934-942,共9页自然科学进展·国际材料（英文版）

基　　金：Supported by National Natural Science Foundation of China (Grant Nos.40572003,40372001);the Laboratory of Paleobiology and Stratigraphy,Nanjing Institute of Geology and Palaeontology,Academia,Sinica (Grant No.023106);the Research Fund for Doctoral Program of Higher Education(Grant Nos.20060001059,2000000127)

摘　　要：The fossils of Orsten-type preservation are as famous as Chengjiang Fauna in the world, but it was not until 2005 that the Orsten-type fossils represented by Skaracarida and Phosphatocopida were first reported to be found in western Hunan, South China. Here, we report the systematic paleontology of all the exquisitely preserved specimens belonging to Skaracarida. They were found at a same horizon of Upper Cambrian （Furongian） in Wangcun section, western Hunan, south China, assigned to a new species Skara huna- nensis herein. Skara hunanensis is characterized by small, soft-integumented, marine forms with slender, annulate body; labrum large and ventrocaudany directed; uniramous antennulae; biramous antennae and mandibulae; maxillas and maxillipeds of the same shape; all postantennular limbs join a short cephalic filter apparatus. The body has two tagmata： a cephalon with five pairs of well developed appendages and a trunk composed of 11 ring-shaped conical segments.Orsten 类型保藏的石块象在世界上的 Chengjiang 动物志一样著名，但是直到 2005 Orsten 类型石块由 Skaracarida 代表了， Phosphatocopida 首先被报导在西方的人被成立，华南。这里，我们报导属于 Skaracarida 的所有精致地保存的标本的系统的古生物学。他们在一根一样的地平线被发现上面寒武纪(Furongian ) 在 Wangcun 节，西方的人，华南，此处分到新种类 Skara hunanensis。Skara hunanensisis 与苗条、有环的身体由小、软覆盖物的、海洋的形式描绘了；大、 ventrocaudally 指导的上唇；uniramous antennulae；双性人多枝的天线和 mandibulae；一样的形状的下颚和 maxillipeds；所有 postantennular 手足加入一台短头部的过滤器仪器。身体拖引 tagmata：有五个很好发达的附器和一个箱子的 cephalon 11 个圆形的圆锥形的片断创作了。

关 键 词：Skara hunanensis Skaracarida CRUSTACEA Upper Cambrian FURONGIAN Hunan. 

分 类 号：K872[历史地理—考古学及博物馆学]