Ключевые слова: age, ancient, animal, archeology, arthropod, background, biology, brown, cambrian, close, closeup, color, concrete, dead, evolution, extinct, fossil, fossilization, fossilized, fossils, geological, geology, history, horizontal, impression, imprint, macro, mineral, natural, nature, old, paleontology, prehistoric, prehistory, rock, science, sea, shell, skeleton, stone, texture, trilobite,