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