trilobite
['mud turtle', 'rock crab, Cancer irroratus', 'hen-of-the-woods, hen of the woods, Polyporus frondosus, Grifola frondosa', 'hammerhead, hammerhead shark', 'promontory, headland, head, foreland', 'tiger shark, Galeocerdo cuvieri', 'ostrich, Struthio camelus']