trilobite
['coil, spiral, volute, whorl, helix', 'platypus, duckbill, duckbilled platypus, duck-billed platypus, Ornithorhynchus anatinus', 'cockroach, roach', 'cardoon', 'spotted salamander, Ambystoma maculatum', 'common newt, Triturus vulgaris', 'dung beetle']