Anisian(Middle Triassic)Amber from Qingyan Section,Guizhou Province and Its Significance
The Middle-Late Triassic was a critical period for the construction of modern ecosystems,and a systematic study of the co-evolution of organisms and the environment during this period is significant for revealing the mechanisms of biological recovery and the reconstruction of ecosystems.Amber is important for discussing the evolution of plants and paleoclimate in the Middle to Late Triassic.Here,it reports for the first time the finding of amber in an Anisian marine succession in Qingyan Section,South China,which was located in the north-eastern Tethys.Ammonoid biostratigraphy gives a Pelsonian age for the layers bearing amber.Amber has been recovered in close association with plant remains identified as Voltzia sp.,indicating that this plant has likely exuded the resin.The fact that fossil resin is restricted only within humid events strongly indicates a climatic control on resin production during the Triassic.
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