What is the layers of the sedimentary rocks from bottom to the top?

I have been working on a project and i need to know the layers of a sedimentary rock.What is the layers of the sedimentary rocks from bottom to the top?
The answer varies with every rock formation, as the names given to them only apply locally. The particular kinds of rock involved also vary from place to place. You could term the lowest one the bottom and the highest one the top, but there's no single arrangement for those in between.What is the layers of the sedimentary rocks from bottom to the top?
In sedimentary rock the layers mean this:





Oldest are on the bottom.





In sands, the there is a gradation in grain size of the sand grains, usually coarser on the bottom.





Originally the layers were laid down horizontally.