ancient conservation dinosaurs display displayed evidence feet flip-flops footprints fossils geological geology historic impressed impression impressions imprinted large prehistoric Prehistory Preserved record rock rocks sandals stone thongs toenails toes tourism tourists tracks activity animals beach colors colours dogs grainy imprints indented light patterns paw-prints sand shadow textures boot-prints boots Soil work workplace tire-tracks tyre-tracks cast cretaceous-period dinosaur dinosaur-tracks embedded footprint hard imprint mark palaeontology paw paw-print sharp solid park pedestrians vehicle-tracks vehicles walkers abstract appearance backdrop background decorative design details distinctive embossed floral-patterns flowers flowery gray grey outlined outlines patterned raised soft surface surfaced surfaces surfacing tactile texture textured thin touch foot print seashore steps summer