guide_fossil | ||
1. | [ noun ] (geology) a fossil known to have lived in a particular geologic age that can be used to date the rock layer in which it is found | |
Synonyms: | index_fossil | |
Related terms: | fossil | |
Similar spelling: |
guidepost |
guide_fossil | ||
1. | [ noun ] (geology) a fossil known to have lived in a particular geologic age that can be used to date the rock layer in which it is found | |
Synonyms: | index_fossil | |
Related terms: | fossil | |
Similar spelling: |
guidepost |