寒武纪早期特异保存的四节盘龙虫化石为节肢动物起源提供新证据  

Exceptionally preserved Panlongia tetranodusa from the early Cambrian sheds light on the evolution of arthropods

作　　者：骆生祥 刘建妮 Shengxiang Luo;Jianni Liu(State Laboratory of Continental Dynamics,Shaanxi Key Laboratory of Early Life and Environment,Xi’an Key Laboratory of Paleo-bioinformatics,Department of Geology,Northwest University,Xi’an 710069,China)

机构地区：[1]State Laboratory of Continental Dynamics,Shaanxi Key Laboratory of Early Life and Environment,Xi’an Key Laboratory of Paleo-bioinformatics,Department of Geology,Northwest University,Xi’an 710069,China

出　　处：《Science Bulletin》2024年第3期308-313,共6页科学通报（英文版）

基　　金：This work was supported by the National Natural Science Foundation of China(42130206,4227200,41890845,and 41621003);the Key Project of the State Key Laboratory of Loess and Quaternary Geology,Institute of Earth Environment,Chinese Academy of Sciences(SKLLQGZR2206);the Programme of Introducing Talents of Discipline to Universities(the“111”Project);the Key Scientific and Technological Innovation Team Project in Shaanxi Province;the Ministry of Education of China for Changjiang Scholars to Jianni Liu.

摘　　要：As typical non-biomineralized arthropods from Series 2 and the Miaolingian of the Cambrian,nektaspids are widely distributed and well-studied[1–3].It is generally accepted that the three families(Naraoiidae,Emucarididae,and Liwiidae)[4]and the genus Buenaspis[5]make up the order Nektaspida.A recent phylogenetic analysis[6]has suggested that Nektaspida may also include other arthropods that are not traditionally placed in this clade.However,several presumed Nektaspida species remain poorly understood because of their rarity and/or incomplete preservation.Panlongia tetranodusa is an example[7],as the only putative nektaspid found in the Guanshan Biota(Series 2,Cambrian),of which the morphology,ecology,and affinities remain problematic.

关 键 词：CAMBRIAN traditionally INCOMPLETE 

分 类 号：Q915[天文地球—古生物学与地层学] P534.41[生物学—古生物学]