Do you know what this is? It is carboniferous in age and comes from Ossett, West Yorkshire, UK. I have found several pieces that are exactly the same as this. Is it a piece of bark of one of those trees which I think is called a scale tree? Also I wanted to ask you, when I go fossil hunting in a drought, I barely find any, but when I go after heavy rain there is loads. Why is this happening? Is it because of erosion?