guide fossil

n. See index fossil.

Thesaurus

Noun

guide fossil - a fossil known to have lived in a particular geologic age that can be used to date the rock layer in which it is foundindex fossilfossil - the remains (or an impression) of a plant or animal that existed in a past geological age and that has been excavated from the soil

guide fossil

[′gīd ‚fäs·əl] (petrology) A fossil used for rock correlation and age determination.

guide fossil

noun

Synonyms for guide fossil

noun 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 Words

fossil

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