中文摘要：

为了研究寒武纪的食物网特征,采用沉积学及遗迹学特征,在豫西寒武系第二、三统馒头组共识别出了潮间环境中的遗迹化石14属18种,并在遗迹化石的基础上结合其造迹生物的营养类型,建立了基于遗迹化石的潮间食物网。总结出寒武纪潮间食物网的特征：（1）节肢动物在潮间环境中占主导地位;（2）寒武纪潮坪环境拥有丰富的食物资源;（3）较小的生存压力。寒武纪潮坪中大量丰富的节肢动物遗迹化石的出现,显示了节肢动物对潮坪环境的入侵,揭示了节肢动物对潮间环境的较早殖居,显示出了海洋生物典型的生态空间扩张趋势。

英文摘要：

In order to study characteristics of food web in Cambrain,based on the characteristics of sedimentology and ichnology,14 generas and 18 species trace fossils have been identified in the Mantou formation of Cambrian series 2,3,western Henan. And the food web has been established on the basis of the trace fossils and their trace makers nutrition type. The characteristics of Cambrian food web are summaried as follows：（ 1）arthropods were dominated benthonic animals in intertidal zone;（ 2） there are abundant food resources in the Cambrian intertidal zone;（ 3） less living pressure. The occurrence of abundant arthropod trace fossils,scratch marks and trackways in intertidal provides evidence that arthropods were able to colonize tidal flat zone. Therefore it displayed the ecological space expansion trend of the benthos in Cambrian.