In this paper, new interpretations of the boundary rocks at the section are proposed. The Kuanyinchiao Bed, i.e. the Hirnantia Bed (AFA295-305) and the Shelly Bed (AFA306-311c) should be combined as a single lithostratigraphical unit of Ordovician age as they have similar lithology and yield the same brachiopod fauna. Comparison with the basal boundary stratotype of the Hirnantian Stage at Wangjiawan, northern Yichang, shows that the Kuanyinchiao Bed at Shanwangmiao can be correlated with the upper Normalograptus extraordinarius Biozone and the lower N. persculptus Biozone. There is a hiatus between the Kuanyinchiao Bed and its overlying Lungmachi Formation (AFA312), missing the upper N. persculptus Biozone, the Akidograptus ascensus Biozone, and most part of the Parakidograptus acuminatus Biozone. Thus, the recognition that the typical Hirnantia Fauna could extend to the earliest Silurian A. ascensus Biozone or even higher horizon in South China (Rong Jia-yu et al., 2002) is modified.  Hirnantia Fauna after the first episode of the end Ordovician mass extinction contains a series of unique benthic communities with special affinities, geologic age and environmental background.