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Upper Cretaceous
(redirected from Late Cretaceous)

   Also found in: Wikipedia 0.02 sec.
Upper Cretaceous [′əp·ər kri′tā·shəs]
(geology)
The late epoch of the Cretaceous period of geologic time, beginning about 90 million years ago.


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Dinosaur jaws were simple hinges that allowed biting but didn't allow the side-to-side motions that mammals use to grind food, so it was unknown how hadrosaurs, the dominant plant-eating vertebrates of the Late Cretaceous, chewed plant material.
Byline: ANI Washington, July 10 (ANI): In a new research, scientists have obtained evidence for ice-free summers with intermittent winter sea ice in the Arctic Ocean during the Late Cretaceous period, which should help predict how the Arctic is likely to respond to future global warming.
Oil was found under a thick gas cap, both reservoired in tertiary limestones, possibly sourced from late Cretaceous to Tertiary shales.
 
 
 
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