fossillike
/ˈfɒsɪlˌaɪk, ˈfɒsɪlɪk/Definitions
1. adjective
resembling a fossil; especially: having a preserved or fossilized appearance
“The ancient tree trunks had a fossillike quality to them, as if time had frozen their decay.”
2. adverb
in a manner resembling a fossil; especially: as if preserved or fossilized
“The artist worked fossillike to capture the textures of the ancient artifacts.”