geological landscape. outcrop of silurian and devonian deposits

age beautiful cambrian clouds coast coral cretaceous dalmanites devonian engraving era fossils gemstone geological geology grass green kingdom kitaygorod landscape layers limulurus marble monument natural outcrop paleology paleontology paleozoic panorama paradoxides pictorial river rock seaweed section sediment silhouette silur silurian skulls strata stratum summer talus ternava transparent trees underwater united valley village weekend