【摘要】 本文记述了冀东北及辽西寒武纪及早奥陶世三叶虫12个属23个种,其中10个新属和19个新种。更多还原

【Abstract】 The trilobites here described were collected in 1963 and 1964 by the junior authorfrom the Cambrian and Lower Ordovician at Kuancheng and Pingquan in northeasternHebei and at Lingyuan and Jinxi in western Liaoning.They consist of 12 generaand 23 species,of which 10 genera and 19 species are new.The described species,numbering 23 in all,are listed as follows:Lianhuashania convexa sp.nov.,Luaspideslingyuanensis Duan,Jinxiaspis liaoningensis sp.nov.,Parakoptura longibiloba(Chang),Yushugouia nitida sp.nov.,Goumenzia latilimbata sp.nov.,Lingyuanaspis lingyuanen-sis sp.nov.,Longxumenia globosa sp.nov.,Haniwa dactyloides sp.nov.,Hebeia conicasp.nov.,H.pingquanensis sp.nov.,Pingquania pingquanensis sp.nov.,P.tenuilimbatasp.nov.,Eochuangia laevis Duan,Bergeronites yanshanensis sp.nov.,Kaolishaniacylindrica sp.nov.,Kaolishaniella yanshanensis sp.nov.,Changia pulchra sp.nov.,Metachangshania orientalis Duan,Yanshanopyge mirabilis sp.nov.,Symphysurus(Troedssonia)yanshanensis sp.nov.,S.(T.)sulcatus sp.nov.,Mareda sinuata sp.nov.,All the species are found from various horizons of the Cambrian.With theexception of the two species,Symphysurus(Troedssonia)yanshanensis and S.(T.)sulcatus,which are known to occur in the basal part of the Lower Ordovician YeliFormation.更多还原