Cretaceous

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English

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Etymology

Specific use of cretaceous.

Pronunciation

Proper noun

Cretaceous

  1. (geology) The geologic period within the Mesozoic era that comprises lower and upper epochs from about 146 to 66 million years ago.
    • 1992, Rudolf M Schuster, The Hepaticae and Anthocerotae of North America: East of the Hundredth Meridian, volume V, Chicago, Ill.: Field Museum of Natural History, →ISBN, pages 3–4:
      As with the Lejeuneaceae, this pattern of massive speciation appears to be correlated with the Cretaceous explosion of the angiosperms and the simultaneous creation of a host of new microenvironments, differing in humidity, light intensity, texture, etc.

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