昆明地区澄江动物群的发现与研究

THE DISCOVERY AND STUDY OF CHENGJIANG FAUNA IN KUNMING AREA

本文回顾了20多年来昆明地区澄江动物群的发现和研究历史,进一步讨论了澄江动物群的形成条件、演化趋势及组合特征。昆明地区澄江动物群的各类生物化石归并为26个类群179属201种。昆明地区的澄江动物群以节肢动物占统治地位,蠕形动物和触手动物种类繁多。同时毛颚动物和棘皮动物、脊索动物门中的尾索动物、头索动物和脊椎动物均有发现,特别是脊椎动物海口鱼(Haikouichthys)和昆明鱼(Myllokunmingia)的发现,使脊椎动物出现的历史向前推移了5000万年。

In this paper, we pass the discovery and study history more than 20 years of Chengjiang fauna in Kunming area,and discuss about the forming conditions, evolution trend and assemblage feature of Chengjiang fauna in Kunming area. Chengjiang fauna in Kunming area can be divided into 26 types, 179 genua, 201 species. In Chengjiang faun of Kunming area, Arthropoda is dominant, vermes and Lophophorata are very various. Chaetognatha and echinoderms, urochorde, cephalochordate of Chordata and vertebrate have been discovered. Especially, the discovery of Haikouichthys and Myllokunmingia causes the occurrence history of vertebrate to be moved in advance by 50 ma.