Global Comparative Analysis On The Paleo-geography And Paleo-ecology Environment And The World Natural Heritage Value Of Guizhou Triassic Fossils

Guizhou Triassic fossil is one of several Triassic biota sites in the world.The paleo-geography and paleo-ecological environment has made important achievements in the sea changes and paleontological recovery,evolution and development,but facing some problems in the fossil value,between biota and biota,etc.Therefore,in the purpose of discussing the value of Guizhou Triassic biota,we combined major issues and took the theory of earth system science,geography,biology and geology as the guiding ideology,we had discussing 3 sites of different geological period in Panxian,Xingyi and Guanling in Guizhou Province dynamically over a period of 1 year from June 2015 to July 2016,the related materials of paleo-geography and paleo-ecology were tested by China CNKI full-text database,CALIS document retrieval system,EBSCO journal database,foreign periodicals resources service system and Link Spinger retrieval platform,etc.Take these materials to research the value and the conclusions are as follows:(1)Guizhou Triassic fossils belong to the transitional zone between the Tethys ocean and the eastern Pacific Ocean,and the marine ecological environment is gradually changed from the shallow water turbulence stage to the shallow sea stable stage.The Late Permian period is the key period for the evolution of the Pan Pacific Ocean and Tethys ocean in the world.In this period,China is also in a period of rapid changes in the pattern of paleo-geographic structure.Guizhou is located in the edge of the upper Yangtze plate of the Cathaysia Block,which is a special marginal reef facies and platform slope facies,which belongs to the transitional zone between the Tethys ocean and the eastern Pacific Ocean,and has a special geographical framework.Panxian biota is the world's three oldest group of organisms in the world,lives in the turbulent environment,represents the Late Permian to the Early Triassic marine life from the quiet to recovery stage.The Xingyi biota is the earliest been found in China.The ancient marine ecological environment from the turmoil to small fluctuations.The marine organisms were to differentiation,migration,radiation evolution in this period,represented the middle and Late Triassic paleo-geographic framework from shallow water to shallow and deep sea.The Guanling biota is located in a shallow and deep sea on the paleo-geographical structure,and the marine ecological environment tends to be stable,which is the Late Triassic marine life to the stable development of the ocean,fills the gaps of the Late Triassic fossil record.The three fossil sites constitute a relatively complete silence--recovery--radiation--stable biological evolution sequence,also reflect the paleo-ecological environment in this area from coastal shallow water to shallow and deep Ocean.(2)With the other Triassic fossil of the world natural heritage,the world heritage nomination and non heritage comparison,"Guizhou Triassic fossils" are typical and representative in the paleoecological environment evolution and paleogeographic framework,and marine strata sequence most continuously.With the other Triassic fossil of the world natural heritage,the world heritage nomination and non heritage comparison,"Guizhou Triassic fossils" is typical and representative in the history of the evolution of the earth.This study is based on the world heritage evaluation criteria(VIII): is an important example of the important stages of the earth's evolution history,including life records and geological evolution of the important geological processes or significant geological or geomorphological features.Comparative analysis can be drawn through the comparison of their paleo-geography structure and paleo-ecological environment,the fossils belong to SETRA Tethys ocean in the East Pacific Ocean,and experienced and preserved the unique geological structure and marine ecological environment evolution.From the comparative analysis,only the fossils have so many features,obvious particularity.At the same time,the evolution of Guizhou Triassic fossils are typical and representative because of the complete record of evolution of the marine environment in middle and late Triassic period,it can well reflect the evolution of the marine environment in the middle and late Triassic period.(3)"Guizhou Triassic fossils" highlights the Triassic marine ecological environment evolution process,with special paleogeographic framework,is the best record of middle and late Triassic,marine biological evolution,and marine strata sequence most continuous,the longest span of time,with the value of the world heritage.Through the comparison with the world's important paleobiological heritage sites,the nomination and the non heritage sites,it concludes that it is of great value.The fossils are located in the transitional zone between the Tethys ocean and the eastern Pacific Ocean,and the sequence of marine strata is the most continuous,with the longest span of time and the uniqueness.And it shows a marine ecological environment stage that from turmoil transformed into stable,formed a complete,continuous,geological window of up to 15-20 million years of Triassic Anisian geological-Carney period evolution sequence stratigraphic hismatory and rine,representative.The fossils be found the Triassic marine reptiles that crawling SETRA Tethys zone and East Pacific zone biological characteristics,shows the special paleo-geographical location,is the study of Triassic period between different biological zone exchange and evolution,has obvious relationship.The outstanding universal value of the fossil can meet the world heritage standards in the important stage of the evolution of the earth,which can provide a theoretical basis for the application of the world natural heritage.