Ключевые слова: ammonite, ammonites, ammonitida, amonite, ancient, animals, background, cephalopod, circles, circular, closeup, coil, detail, evolution, extinct, fossil, fossilized, fossils, geological, geology, macro, mineral, nature, nautilus, old, paleontology, prehistoric, prehistory, rock, shell, skeleton, snail, spiral, stone, swirl, texture, textured,