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记述澄江动物群的３个新的节肢动物：Ｄｏｎｇｓｈａｎｉａｆｏｌｉｆｏｒｍｓｇｅｎ．ｅｔｓｐ．ｎｏｖ．，Ｐｉｓｉｎｎｏｃａｒｉｓｓｕｂｃｏｎｉｇｅｒａｇｅｎ．ｅｔｓｐ．ｎｏｖ．和Ｐｓｅｕｄｏｉｕｌｉａｃａｍｂｒｉｅｎｓｉｓｇｅｎ．ｅｔｓｐ．ｎｏｖ．。标本采自云南澄江帽天山和小滥田剖面下寒武统筇竹寺组Ｅｏｒｅｄｌｉｃｈｉａ带下部，３个新属种分别有１枚或２枚标本为代表。新属种拓宽了我们有关始裂支节肢动物超纲的认识。Ｄｏｎｇｓｈａｎｉａｆｏｌｉｆｏｒｍｉｓ与其它节肢动物的区别在于它没有肋区，但有一个类似于Ｆｕｘｉａｎｈｕｉａ的附肢。Ｐｉｓｉｎｎｏｃａｒｉｓｓｕｂｃｏｎｉｇｅｒａ锥状的体型，较少的体节和头甲前部喙板的存在，是该动物独特的特征。Ｐｓｅｕｄｏｉｕｌｉａｃａｍｂｒｉｅｎｓｉｓ多节的体型颇像现代多足类的倍足类，但附肢却是双分支的，外肢呈简单的卵形板状，边缘具刚毛。分子生物学的研究认为，裂支类（ｓｃｈｉｚｏｒａｍｉａｎｓ）和单支类（ｕｎｉｒａｍｉａｎｓ，包括ｍｙｒｉａｐｏｄｓ）具有密切关系（ＡｖｅｒｏｆａｎｄＡｋａｎ，１９９５），单支类是从原始的裂支类演化而来似更有其道理（ＨｏｕａｎｄＢｅｒｇｓｔｒｍ，１９９７?
Describe three new arthropods of the Chengjiang fauna: Dongshaniafoliformsgen. etsp. nov , Pisin nocarissubconigeragen. etsp. nov And Pseudoiuliacambriensisgen. etsp. nov . Specimens were collected from the lower part of the Eoredlichia belt in the Lower Cambrian Qiongzhusi area in the Tianshan Mountains and Xiaoyutian section of the Chengjiang River in Yunnan Province. One or two specimens of the three new genera, respectively, were represented. The new species broadens our understanding of the superficial division of arthropods. Dongshaniafoliformis differs from other arthropods in that it has no ribs, but has an appendage similar to Fuxianhuia. Pisinnocarissubconigera is a unique feature of the animal with its tapered body, fewer body segments and the presence of the frontal scaphoid. The Pseudoiuliacambriensis multinodular body resembles that of the modern multi-legumes, but the appendages are bifurcated and the outer limbs have a simple oval plate with marginal bristles. Molecular biology suggests that there is a close relationship between schizoramians and uniramians (including myriapods) (Averof and Akan, 1995). It seems more likely that a single branch evolved from a primitive split (Hou and Bergstrm, 1997?