EXCEPTIONALLY-PRESERVED EARLY METAZOAN BIOTAS OF NEOPROTEROZOIC-CAMBRIAN IN GUIZHOU AND THEIR IMPLICATIONS:A BRIEF INTRODUCTION
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Abstract:
The fossil record of the origin and early diversification of the Metazoa is extremely rich in Guizhou Province. Five exceptionally-preserved biotas are present in Ediacaran 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...