单词 | Cretaceous |
释义 | Cretaceous/krɪˈteɪʃəs /adjective Geology 1Relating to or denoting the last period of the Mesozoic era, between the Jurassic and Tertiary periods.As such, they have been found fossilized in Jurassic and Cretaceous deposits, and have been used to reconstruct paleoclimates....
1.1 (as noun the Cretaceous) The Cretaceous period or the system of rocks deposited during it. The Cretaceous lasted from about 146 to 65 million years ago. The climate was warm and the sea level rose; the period is characterized especially in NW Europe by the deposition of chalk. The first flowering plants emerged and the domination of the dinosaurs continued, although they died out quite abruptly towards the end of it. OriginLate 17th century: from Latin cretaceus (from creta 'chalk') + -ous. Rhymes |
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