antique print of a ammonite fossil in cross section, lithograph style. generative ai

pattern organ circle design brown art drawing sketch carving lighting antique print ammonite fossil cross lithograph style generative showing shell spiral fossil ammonite shell spiral ancient stone animal geology fossilized nature rock pattern old texture extinct paleontology mineral science marine detail macro prehistoric closeup mollusc cross coil sea nautilus geological swirl cut geometry fractal chamber surface structure history creature species vintage antique drawing lithograph design book seashell mollusk