Branching Macroalgal Fossils of the Early-Middle Cambrian Kaili Formation from Taijiang, Guizhou Province, China YANG Ruidong~(1, 2), MAO Jiaren~2, ZHAO Yuanlong~2, CHEN Xiaoyuan~2 and YANG Xinglian~2 (1. Guizhou Institute of Geochemistry, CAS, Guiyang 550002; 2. Guizhou University of Technology, Guiyang 550003) In this paper, 5 genera and 7 species of the branching macroalgal fossils of the Early-Middle Cambrian Kaili Formation from Taijiang County, Guizhou Province are described, they are: Marpolia spissa Walcott, Marpolia aequalis Walcott, Doushantuophyton lineare Chen, Guizhouella ramulosa Yang