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用Rarefaction方法对华南早-中二叠世(?)类物种表面分异度进行了统计验证,证明华南(?)类动物群物种数在早二叠世初迅速增加,并在紫松期保持稳定的高分异度状态;自早二叠世隆林期起,(?)类动物群物种分异度开始下降并呈长期低迷状态;随着具副隔壁类群的出现,(?)类物种数在早二叠世晚期有所回升;中二叠世孤峰期(?)类动物群物种数再次增加,但其规模远小于早二叠世初(?)类动物群的辐射演化;中二叠世中、晚期(?)类物种分异度持续下降,至中二叠世末大部分(?)类物种消失.
The Rarefaction method was used to verify the surface diversity of the early-middle Permian (?) Species in South China, and the species number of the South China (?) Fauna rapidly increased in early Early Permian, The species diversity of (?) Fauna began to decline and became downturn for a long period of time since the Early Permian Longling period. With the appearance of parasitoids, The number recovered in the late Early Permian, and the number of the Uroplankton fauna increased once again in the middle Permian, but its scale was much smaller than that of the early Permian fauna. Late Middle Permian (?) Species species diversity continued to decline until the end of the Middle Permian most species disappear.