摘要
对采自云南昆明下寒武统沧浪铺阶乌龙箐组黄色泥岩中的4块Tuzoia标本进行了研究,确定一个新种Tuzoiakunmingensissp.nov..新种个体较大,壳面网格清晰,后缘刺保存完好.而其区别于其他种的最主要特征是具5枚基本均匀分布于背缘的背刺.文章简要讨论了Tuzoia的分类位置,认为在软体、附肢还未发现或不十分了解的情况下,将其指定到科和科级以上的分类单位并无实际意义.
Four specimens are collected from the lower part of the Tsanglangpuan Stage of Lower Cambrian of Kuming,Yunnan .They may represent one new species named Tuzoia kunmingensis sp.nov. One of the four specimens is well-preverved but lacks the anterior.The other three are poorly-preserved. The classification of Tuzoia is briefly discussed. It is more suitable to classify Tuzoia into Phyllocarida, but no family can be determined before the body and appendages are fully found.According to Simonetta & Delle Cave(1975) and Robinson & Richards(1981),Tuzoia burgessensis and T. canadensis are the synonymum junius of T. retifera. So, T.burgessensis in Treatise by Brooks(1969) is compared to Tuzoia kunmingensis sp.nov. instead of T. retifera.
出处
《桂林工学院学报》
北大核心
2005年第2期152-154,i004,共4页
Journal of Guilin University of Technology
