主要报道了产自云南昆明海口耳材村早寒武世筇竹寺组玉案山段澄江生物群中可能为自由漂浮生长的宏观藻类化石———心型龙凤山藻 (新种 ) (Longfengshaniacordatasp .nov .)和中华豆芽藻 (新属、新种 ) (Plantulaformissinensisgen .etsp .nov .)。这些化石的发现进一步显示了澄江生物群物种多样性 ,为揭示该生物群爆发性演化提供了新的证据。通过对龙凤山藻属亲缘关系的深入比较研究 ,进一步证明该类化石应归属宏观藻类以及它们遗传上的稳定性、演化上的保守性和环境上的适应性。 The report mainly from the macro-algae fossils (new species), Longfengshaniacordatasp. Nov, which may be free-floating growth in the Yushan section of the Early Cambrian Qiongzhusi Formation, .) And Chinese sprout (new genus, new species) (Plantulaformissinensisgen. Rtsp. Nov.). The discovery of these fossils further shows the species diversity of the Chengjiang biome and provides new evidence to reveal the explosive evolution of this biota. Through the deep and comparative study on the genetic relationship of Phyllocampus, we further prove that these fossils belong to macroscopic algae and their genetic stability, evolutionary conservation and environmental adaptability.