Cretaceous Meaning in English
word
Definition
Relating to the geological period between about 145 and 66 million years ago, when dinosaurs were abundant and many chalk deposits formed.
Usage & Nuances
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'.
Example Sentences
Many famous dinosaurs lived during the Cretaceous period.
basic
The Cretaceous ended about 66 million years ago.
basic
Scientists study Cretaceous rocks to learn about Earth’s history.
basic
Did you know flowering plants first appeared in the Cretaceous?
natural
There are many Cretaceous fossils on display at the museum.
natural
That cliff is made mostly of Cretaceous chalk deposits.
natural