Marls containing pyrite with the level of laminae .

具水平纹层含黄铁矿泥灰岩。

The laminae may appear especially even and parallel in sections parallel to the shoreline .

在平行于滨线的剖面上，薄层里显得尤为平整。

" In a sense , " says mahadevan , " we have quantified one aspect of the similarity by showing that in addition to being laminae ( like blades ) , the morphologies of petals and leaves are often determined by similar principles . "

马哈德文说：“花瓣和叶多呈刀刃般的薄片状，它们形态的形成常常遵循类似的规则，从一定意义上来说，这是对它们相似性某一方面的量化。”