Ключевые слова: abstract, ammonidea, ammonite, ammonites, amonite, ancient, animals, background, brown, cephalopod, circles, circular, close, closeup, coil, design, detail, discovery, evolution, extinct, fossil, fossilized, fossils, fractal, geological, geology, macro, marine, mineral, mollusc, natural, nature, nautilus, paleontology, pattern, petrified, prehistoric, seashell, shell, skirt, snail, spiral, stone, surface, texture, textured,