index fossils

A form of index fossil — Any ancient remains of a plant or animal that lived during a specific geological period and that can be used to date the containing rocks.

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Meanings

noun
  1. pluralplural of index fossil
Cite this entry
APA

index fossils. (n.d.). In WatkinsX Dictionary. Retrieved November 4, 2026, from https://dictionary.watkinsx.com/word/index%20fossils

MLA

“index fossils.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/index%20fossils. Accessed November 4, 2026.

Chicago

WatkinsX Dictionary, s.v. “index fossils,” accessed November 4, 2026, https://dictionary.watkinsx.com/word/index%20fossils.

Source: index fossils on Wiktionary, CC BY-SA 4.0.