THESAURUS
boss, bump, colophon, concavity, convexity, dactylogram, dactylograph, dent, dint, embossment, excrescence, fingerprint, footmark, footprint, footstep, fossil footprint, ichnite, ichnolite, impress, impression, imprint, indent, indentation, indention, lump, pad, paw print, pawmark, pimple, print, pug, pugmark, seal, sigil, signet, stamp, step, stud, thumbmark, vestige