Ключевые слова: ancient, archeology, biology, bone, brown, closeup, concrete, detail, era, evolution, exoskeleton, extinct, fish, fish skeleton, fossil, fossils, geology, history, isolated, limestone, marble, museum, natural, nature, ocean, old, paleoiskusstvo, paleontology, petrified, prehistoric, prehistory, rock, science, sea, skeleton, stamp, stone, the color of the sea, the period of fossilization,