Two new spider families from Late Cretaceous Kachin amber(Arachnida: Araneae)  

作　　者：Tongyao Jiang Yafei Xin Zhiyuan Yao Shuqiang Li 

机构地区：[1]Institute of Zoology,Chinese Academy of Sciences,Beijing 100101,China [2]Southeast Asia Biodiversity Research Institute,Chinese Academy of Sciences,Yezin,Nay Pyi Taw 05282,Myanmar [3]College of Life Science,Shenyang Normal University,Shenyang 110034,Liaoning,China

出　　处：《Zoological Systematics》2020年第4期266-280,共15页动物分类学报（英文版）

基　　金：supported by the National Natural Science Foundation of China(31530067);the Southeast Asia Biodiversity Research Institute,Chinese Academy of Sciences(2015CASEABRI005,Y4ZK111B01)。

摘　　要：Two new spider families from Late Cretaceous Kachin amber(Myanmar),Pilosarachnidae Jiang&Li,fam.nov.and Gigarachnidae Jiang&Li,fam.nov.,are described:Pilosarachne ju Jiang&Li,gen.&sp.nov.and Gigarachne bian Jiang&Li,gen.&sp.nov.Type specimens are deposited in the Institute of Zoology,Chinese Academy of Sciences in Beijing(IZCAS).Both families bear three tarsal claws and are most likely entelegyne.Diagnostic characters of extinct families in Kachin amber with uncertain relationships with extant fauna are listed and discussed.

关 键 词：LAGERSTATTE Myanmar new species new genus 

分 类 号：Q915.8[天文地球—古生物学与地层学]