trilobite
['lacewing, lacewing fly', 'brain coral', 'hen-of-the-woods, hen of the woods, Polyporus frondosus, Grifola frondosa', 'American chameleon, anole, Anolis carolinensis', 'tusker', 'platypus, duckbill, duckbilled platypus, duck-billed platypus, Ornithorhynchus anatinus', 'bittern']