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Noun: index fossil  'in,deks 'fó-sul
  1. 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
    - guide fossil

Derived forms: index fossils

Type of: fossil

Encyclopedia: Index fossil

Nearest

indeterminably
indeterminacy
indeterminacy principle
indeterminate
indeterminateness
indetermination
indeterministic
index
index case
index finger
index fossil
index fund
index number
index of refraction
index register
indexation
indexer
indexical
indexing
indexless
index-linked