See here, my butterflies and an engraving of the fossil (1887) of a Prodryas persephone, an extinct butterfly. It was the first butterfly fossil to be found in North America. It is unusually well preserved. This fossil has amazing detail and clarity. It was collected in the late 1800s by the Mrs. Charlotte Hill, a homesteader turned naturalist, who helped discover many important fossils.
I’m inspired by the contrast of the hard shale deposits of Late Eocene age and the fragility of the butterfly. The force of raindrops on rocks make them wear down, and a fragile butterfly can leave an imprint in stone. It tells us Die Milde Macht Ist Gross (gentle power works well).