Cretaceous Meaning in English
word
释义
Relating to the geological period between about 145 and 66 million years ago, when dinosaurs were abundant and many chalk deposits formed.
用法与细微差别
Used mainly in scientific and educational contexts, especially in geology and paleontology. Written with a capital 'C' when referring to the period ('the Cretaceous') and lowercase when used as an adjective ('Cretaceous rocks'). Common collocation: 'Cretaceous period'.
例句
Many famous dinosaurs lived during the Cretaceous period.
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The Cretaceous ended about 66 million years ago.
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Scientists study Cretaceous rocks to learn about Earth’s history.
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Did you know flowering plants first appeared in the Cretaceous?
natural
There are many Cretaceous fossils on display at the museum.
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That cliff is made mostly of Cretaceous chalk deposits.
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