Possible structure found above Stainton gravel beds.

I first thought as can be viewed in earlier posts, that most of the stone in the possible structure was mostly yellow sandstone. But it seems that the stone is of all kinds, but i have noticed after washing and drying the stones i have had to remove to get further in to the bank, the stones are of very different colours including blue ,violet , red , and yellow, and all have one thing in common they all display well preserved fossils.