Ключевые слова: abstract, ancient, animal, background, beautiful, biology, bivalve, bivalvia, brown, closeup, complexity, cretaceous, detail, dinosaur, education, era, eternity, evolution, extinct, fauna, fossiled, geology, gold, jurassic, late creaceous, macro, marine, mineral, museum, nature, nautilus, ocean, old, oyster, paleontology, pattern, prehistoric, rock, science, shell, snail, spiral, stone, surface, texture, turonian,