The laminated stromatolite is a biological heritage of algae that was formed in synchroneity with the formation of rocks and is common in carbonate sediments of the Precambrian System.

• 层纹状叠层石是与岩石同时形成的藻类生物遗迹。一般在前寒武纪碳酸盐沉积中最为常见，是原核生物所建造的有机沉积结构。