cretaceous
see also: Cretaceous
Pronunciation
  • IPA: /kɹə.ˈteɪ.ʃəs/
Adjective

cretaceous (not comparable)

  1. Of or relating to chalk.
  2. Consisting of chalk.
Translations Translations
Cretaceous
Pronunciation
  • IPA: /kɹə.ˈteɪ.ʃəs/
Proper noun
  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[athias] Schuster, The Hepaticae and Anthocerotae of North America: East of the Hundredth Meridian, volume V, New York, N.Y.: Columbia University Press, →ISBN, page 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.
Translations


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