摘要
贵州化石丰富,素有古生物王国之称,其中早期特异埋藏后生生物十分发育,由老至新有埃迪卡拉系的瓮安生物群、江口庙河生物群,寒武系第1统的小壳动物群、第2统下部的牛蹄塘生物群及中上部的杷榔动物群、第3统底部的凯里生物群。这些特异埋藏生物群与云南寒武系的澄江动物群、关山生物群及陕南埃迪卡拉系高家山生物群构成了我国早期后生生物的演化链,反映了从动物起源(瓮安生物群)、可疑多门类动物出现(江口庙河生物群)、动物骨骼化(高家山生物群)、生物矿化质和量的变化或骨骼动物爆发性辐射(小壳动物群)及海绵动物辐射(牛蹄塘生物群)再到动物主要门类出现的寒武纪大爆发(澄江动物群)、海洋生物多样化及生态复杂化(凯里生物群)的演化过程。
The fossil record of the sification of the Metazoa origin and early diveris extremely rich in Guizhou Province. Five exceptionally-preserved biotas are present in Ediaearan and Cambrian strata. From oldest to youngest, these are the Weng＇ an Biota and the Miaohe（Jiangkou）Biota of the Ediacaran, the Small Shelly Faunas of the earliest Cambrian,the Niutitang Biota of the lower part of the second series of the Cambrian, and the Balang Biota of the middle-upper to upper part of the second series of the Cambrian, and the Kaili Biota of basal part of the third series of the Cambrian. Together with the Chengjiang Fauna of Yunnan and the Gaojiashan Biota of Shannan,these biotas provide a detailed record of the chain of events in early Metazoan evolution. This record reflects the evolutionary sequence from the origin of animals（Weng＇ an Biota）, to the divergence of animals in the Ediacaran （Jiangkou Miaohe Biota）, to the rise of skeletoniza- tion（Gaojiashan Biota）, the origin of biological mineralization（ Small Shelly Fauna）, the radiation of Sponges（Niutitang Biota）,the appearance of the major Classes of the animals（Chengjiang Fauna）, and the evolution and diversification of complex marine eeosystems（Kaili Biota）.
出处
《古生物学报》
CAS
CSCD
北大核心
2008年第4期405-418,共14页
Acta Palaeontologica Sinica
基金
国家自然科学基金(40672018、40762001)
国家973重大项目(2006CB806401)
中德合作项目
深圳市仙湖植物园基金
贵州省科技特别基金(黔科机字2007-4004)
贵州省长基金(黔专合字[2006]7)
贵州省科技基金(黔科合J字[2007]2151号)资助
关键词
早期后生生物
演化序列
动物起源
海洋生物多样化
贵州
early Metazoan, evolutionary sequence, the origin of animals, diversification of marine life, Guizhou
