Upper Cretaceous

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Upper Cretaceous

[′əp·ər kri′tā·shəs]
(geology)
The late epoch of the Cretaceous period of geologic time, beginning about 90 million years ago.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.
References in periodicals archive ?
(1995): New remains of the armoured dinosaur Struthiosaurus from the Late Cretaceous of the Iberian Peninsula (Lano locality, Basque-Cantabric Basin).
Washington, March 13 ( ANI ): A 70 million year old fossil discovered in the Late Cretaceous sediments of Alaska reveals a new small tyrannosaur.
rex and its closest relatives, by contrast, lived in the warm conditions of the Late Cretaceous. Isolated patches of preserved skin from these animals show scales, not feathers, but the possibility that even they were partly feathered cannot be completely ruled out.
This work is part of a larger project evaluating the evolution and extinction of dinosaurs in the Late Cretaceous of North America.
In the late Cretaceous period, the Tyrannosaurus - with its powerful jaws - became the most feared predator ever.
That is why the discovery of a rare dinosaur fossil, dating from the Late Cretaceous Period in modern-day Egypt has researchers excited.
A Late Cretaceous Dinosaur and Reptile Assemblage From South Carolina, USA
The huge carnivore inhabited Laramidia, a landmass formed on the western coast of a shallow sea that flooded the central region of North America, isolating western and eastern portions of the continent for millions of years during the Late Cretaceous Period, between 95-70 million years ago.
Duck-billed dinosaurs were the Cuisinarts of the Late Cretaceous period, pulverizing tough, gritty plants such as conifer trees using hundreds of rough, interlocking teeth (shown).
The authors conclude: "Our discovery, and subsequent report, of these sauropod dinosaur remains from Antarctica improves our current knowledge of the dinosaurian faunas during the Late Cretaceous on this continent."*The Cretaceous Period spanned 99.6-65.5 million years ago, and ended with the extinction of the dinosaurs.