Fossilize

Like arthropods today, trilobites molted as they grew, shedding their old exoskeleton. These molts could fossilize, so one animal could leave several different sized fossils behind.

Most of the booths had been scooped clean by the scalpel-sharp corner of the glacier in the crash. Three remained. Two of them were punctured and, inside, the once-human occupants had been fossilized into the walls by centuries upon centuries of patient ice.

I was getting fossilised myself, but of late my stock of ideas has been very much enlarged.

Ten layers of birthdays on a woman's head / Are apt to fossilize her girlish mirth.

I'll meet you again Blanketed in soil Fossilized in photographs