In lithologies and fossil contents,this Formation is essentially the same as the Xinzhuangcun Formation in the Sanshui Basin,and it can be attributed to the Palaeocene.

• 莘庄村组是一套沉积物较粗、下粗上细的红色碎屑岩，可划分为三段，产介形虫和轮藻，岩石和化石特征与三水盆地莘庄村组基本相同，时代属古新世。