The Permian section at Guanshan of Southeast Hubei Province is abundant in siliceous carbonate and more than 50 species of fossils, including Fusulinida, Anthozoa, Bryozoa and Brachiopoda have been found.

• 鄂东南关山二叠系剖面,含硅质的碳酸盐岩较为发育,并富含(竹蜓)、珊瑚、苔藓虫、腕足等类化石50余种。