Cretaceous
4
9.8
- noun
- /krɪˈteɪʃəs/
- Specialized
:
cretácico
- They concluded that oxygen played a role in body size until the early Cretaceous period.
- Cretaceous period
- late Cretaceous
- end of the Cretaceous
Examples
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They would grow up to face the challenges of the Cretaceous world beyond the mudflats.
Academic text (2002) -
This species of vermiform has been extinct since the Cretaceous period.
Fiction book (1993) -
ALAN: Imagine yourself in the Cretaceous period.
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They know less about the Cretaceous.
Fiction book (1993) -
That's the most recent, the end Cretaceous mass extinction.
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In this corner, the largest fish of the Cretaceous, a 23-foot-long shark.
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At the end of the Cretaceous, the interior seaway running through the middle of North America had not yet completely disappeared.
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Dinosaurs had died out in the Cretaceous period, sixty-five million years ago.
Fiction book (1990) -
According to the early-released PNAS article, "Environmental and biotic controls on the evolutionary history of insect body size," oxygen levels may not have been the primary influence on the size of insects after the early Cretaceous period.
Blog text (11) -
About 75 million years ago, during the Cretaceous period, the dinosaurs began to disappear from the Earth.
Synonyms
3
7.7
The time about 145 to 66 million years ago when many dinosaurs died out and flowering plants became common
Compounds
- Specialized
3
7.7
The time about 145 to 66 million years ago when many dinosaurs died out and flowering plants became common
Surface Forms
Etymology
Cretaceous comes from the Latin word creta, which means 'chalk', and the period was named after the large chalk deposits found from that time. So the Cretaceous period is the part of Earth's history when those chalk layers formed and when many famous dinosaurs and the first flowering plants existed.