As a whole, the Late Silurian rugosan fauna of east Yunnan has an affinity with contemporary west Qinling forms, and shows to a centain extent similarity to those of contemporaneous beds of Ural.

• 滇东曲靖地区晚志留世四射珊瑚群与西秦岭同期四射珊瑚有密切联系 ,同时 ,与乌拉尔 (Ural)同期珊瑚群也有些相似。