摘要
由于蜘蛛身体表面所覆盖的体壳较薄,通常保存为化石的几率较小,因此,蜘蛛化石是一类较为稀有的化石。热河生物群中的蜘蛛化石迄今尚未进行过系统描述。本文报道了属于Araneidae Leach,1819(园蛛科)、Gnaphosidae(平腹蛛科)和Theidiidae Sundeva 1833(球腹蛛科)6个蜘蛛新种:Araneusliaoxiensissp. nov.,A.aethussp. nov.,A.reheensissp. nov.,A.beipiaoensissp. nov.,Gnaphosaliaoningensissp. nov.和Theridionatalussp. nov.;以及蟹奴幼虫的一个化石新属种Mesosacculinapapposagen. et sp. nov.。这些化石均采自辽西北票黄半吉沟义县组下部(晚侏罗世—早白垩世)。
As spiders have thinner carapace, it is usually hard to be fossiliferous for the spiders. Therefore, the spider fossils are rare in geological record. Particularly, there has been no any paper reporting systematically the spider fossils in the Jehol Biota. In this paper, six new species of fossil spiders and a new taxa of sacculinidae fossil are described, including Araneus liaoxiensis sp. nov., A. aethus sp. nov., A. rehensis sp. nov., A.beipiaoensis sp. nov.; Gnaphosa liaoningensis sp. nov., Theridion atalus sp. nov. ; Mesosacculina papposa gen. et sp. nov. All the fossils are collected from the lower Yixian Formation(Upper Jurassic-Lower Cretaceous)in Huangbanjigou , Beipiao, Western Liaoning, China.
出处
《世界地质》
CAS
CSCD
2004年第4期313-320,共8页
World Geology
关键词
蜘蛛
蟹奴
新种
热河生物群
辽西
spiders
sacculidndae
new species
Jehol Biota
Western Liaoning
