Original: Cephalopod size, for maximum shell diameters The Chambered Nautilus, a poem of Oliver Wendell Holmes Coelacanth, another "living fossil" History of animals by Conrad Gesner, first book with fossil illustrations.
Simplified: Cephalopod size, for maximum shell diameters The Chambered Nautilus, a poem of Oliver Wendell Holmes Coelacanth, another "living fossil" References Sweeney, M.J. 2002.