The genus Shensiphyllum, as a special kind of fasciculate compound rugose corals, is characterized by one row horseshoe-shaped dissepiment and fan-like septal trabeculae. These features are unique among the known Silurian rugosan genera. This genus is widespread in the Upper Yangtze region Silurian, especially in the Ningqiang Formation (middle-upper Telychian)of southern Shaanxi and northern Sichuan, the Daluzhai Formation (middle-upper Telychian), northeastern Yunnan and the Shamao Formation, western Hubei. Three new species Shensiphyllum simplex sp. nov., S. proliferum sp. nov. and S. intermedium sp. nov. are described and illustrated in this paper, which are found from the Wangjiawan Formation (lower Telychian), Guangyuan, northern Sichuan, representing the first appearance horizon in the Yangtze region. In the present paper, the diagnostic features of Shensiphyllum, its growth gemmation manner and the skeletal structure features are discussed in detail, and it possibly originated from Stauriidae is inferred.Based on the present study, the diagnosis of Shensiphyllum needs to be modified and further supplemented, and its taxonomic position should be assigned to the family Phacellophyllidae Wedekind, 1922.
