Cretaceous
The Cretaceous period is one of the major divisions of the geologic timescale, reaching from the end of the Jurassic period (about 146 MYA) to the beginning of the Paleocene epoch of the Tertiary period (65.5 mya). The end of the Cretaceous also defines the boundary between the Mesozoic and Cenozoic eras.
Related Topics:
Geologic timescale - Jurassic - MYA - Paleocene - Epoch - Tertiary - Mesozoic - Cenozoic - Era
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~ Table of Content ~
| ► | Introduction |
| ► | Name and dating |
| ► | Divisions |
| ► | Paleogeography |
| ► | Flora |
| ► | Fauna |
| ► | See also |
| ► | References and further reading |
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Latest news on cretaceous
Scientist Uses Tracer To Predict Ancient Ocean Circulation
Measuring a chemical tracer in samples of ancient fish scales, bones and teeth, researchers have studied circulation in the Late Cretaceous North Atlantic Ocean. The Late Cretaceous was a time with high atmospheric levels of carbon dioxide and warm temperatures. Understanding such ancient greenhouse climates is important for predicting what may happen in the future. The new findings contradict some previous models.
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Volcanoes fingered in oceanic mass extinction
Dramatic late Cretaceous anoxic event Scientists reckon they've confirmed what caused an oceanic mass extinction during the late Cretaceous period, 93 million years ago, provoked by a sudden, and previously unexplained "anoxic event" which deprived bottom-dwelling species of oxygen.?
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