A Tentative Research About The Bradiopoda And It's Paleoecology Of The Duyunian Stage And The Taijiangian Stage Of The Cambrian In Guizhou.

The bradiopoda is the important component part of the Cambrian fossils. The brachiopoda fossils of Cambrian were discovered in many places in China. And Kaili is one of the districts that the brachiopoda of Cambrian was discovered earlist and studied most exhaustively in Guizhou. As the major component part of the Kaili fauna ,the brachiopoda has a great significance .The brachiopoda fossils of Cambrian of the Kaili Formation in Guizhou are well preserved and in a large quantity.There are 9 genuses.10 specieses and 3 uncertain specieses including 1 new specieses after a tentative studing. Giving first place to the Inarticulata as the genus and species of the Articulata fossil are monotonous , the fossils include Obolidae Lingulella,Lingulepis, Acrotretidae Acrothele,Orthacrothele, Kutorginidae Kutorgina,Daterinidae Paterina and Iphidella, Micromitridae Micromitra, and Nisusidae Nisusia of the Articulata fossil.The brachionoda fossils of the Kaili formation in Guizhou have many paleoecology phenomena.For example ,the specimens which are preserved with the opened double shells ,and the specimens that are preserved with the Echinodetmata to which the brachiopida sticked, and so on. These paleoecology phenomena can explain the burial characteristics of the Kaili fauna while it plays an important role on the studing of the circumstance of the Kaili Founation.The Palang fauna was discovered at Lower Cambrian Palang Foumation in Wenlingtang of Kakli County.The brachiopoda,as the major component part of the Palang Fauna ,has 4 genuses and 4 specieses including 2 uncertain specieses and 1 similar specieses.The characteristics of the combination and the paleoecology phenomena of the brachionoda of the Kaili Formation in Guizhou can make a contrast amongthe districts of the fauna,and can illustrate that the main body of the animal fauna of the Kaili is protist.The brachiopoda fauna combination of the Kaili formation in Guizhou is rare in the world .It has an especial significance.