古脊椎动物学报（中英文）2024，Vol.62Issue(2)：85-98,14.DOI:10.19615/j.cnki.2096-9899.240321
云南曲靖下泥盆统"曲靖东方鱼"的分类学厘定
A taxonomical revision of'Dongfangaspis qujingensis'from the Lower Devonian of Qujing,Yunnan Province
摘要
Abstract
The affinity of'Dongfangaspis qujingensis',initially assigned to Dongfangaspis but later to Laxaspis,has long been controversial.However,the taxonomical revision raises a new problem of junior homonym since the type species of Laxaspis is L.qujingensis.Here,we describe some new materials of'Dongfangaspis qujingensis'and Damaspis vartus from the Xishancun Formation(early Lochkovian,Early Devonian)in Qujing,Yunnan Province.'Dongfangaspis qujingensis'strikingly resembles Damaspis vartus in the slightly longer headshield,bifurcated ends of the lateral transverse canals,unconnected V-shaped posterior supraorbital canals,and at least seven pairs of lateral transverse canals issuing from the lateral dorsal canal.These similarities indicate that'D.qujingensis'is more suggestive of Damaspis than Dongfangaspis and Laxaspis.Therefore,we propose to remove'Dongfangaspis qujingensis'from Laxaspis to Damaspis.The new specimens of Damaspis vartus reveal five long lateral transverse canals on the right side,corroborating that the asymmetric sensory canal system in the holotype is the intraspecific variation.关键词
云南曲靖/下泥盆统/西山村组/盔甲鱼类/多鳃鱼科/坝鱼属Key words
Qujing,Yunnan/Lower Devonian/Xishancun Formation/Damaspis/Polybranchiaspidae/Galeaspids分类
生物科学引用本文复制引用
山显任,朱敏,李强,盖志琨..云南曲靖下泥盆统"曲靖东方鱼"的分类学厘定[J].古脊椎动物学报（中英文）,2024,62(2):85-98,14.基金项目
国家自然科学基金(批准号:42130209,42072026,2362001,92255301)和云南省张弥曼院士工作站(202205AF150002)资助. （批准号:42130209,42072026,2362001,92255301）
