Cretaceous.
The geologic period within the Mesozoic era that comprises lower and upper epochs from about 146 to 66 million years ago.
Meaning & usage
The geologic period within the Mesozoic era that comprises lower and upper epochs from about 146 to 66 million years ago.
Where this word comes from
Specific use of cretaceous.
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Definitions, grammatical labels, IPA, etymology and examples: Wiktionary contributors, extracted by Kaikki / Wiktextract. Adapted under CC BY-SA 4.0. Selected fields and authored examples are shown; third-party quotations and audio are omitted. See contributor history.
Last enriched 2026-09-10. Definitions are in English. Romanizations are shown when supplied by the source; syllable estimates are omitted for unsupported scripts.