Ключевые слова: aged, ancient, animal, archeology, biology, bone, dead, evolution, evolve, extinct, extinction, fish, fossil, fossilized, geology, history, img0047, is, mineral, museum, nature, palaeontology, paleolithic, paleontology, past, petrifaction, petrified, prehistoric, prehistorical, prehistory, preserved, research, rock, sandstone, science, sedimentary, skeleton, specimen, stone,