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en.wikipedia.org/wiki/Cretaceous

The Cretaceous is a geologic period and system that spans 79 million years from the end of the Jurassic Period 145 million years ago (mya) to the beginning of the Paleogene Period 66 mya. It is the last period of the Mesozoic Era. The Cretaceous Period is usually abbreviated K, for its German translation ...

www.fossils-facts-and-finds.com/cretaceous_period.html

The Cretaceous Period is the final period of the Mesozoic Era. It covered the time span of 144 million years ago to 65 million years ago.

www.ucmp.berkeley.edu/mesozoic/cretaceous/cretaceous.php

The Cretaceous Period. The Cretaceous is usually noted for being the last portion of the "Age of Dinosaurs", but that does not mean that new kinds of dinosaurs ...

www.livescience.com/29231-cretaceous-period.html

Jan 7, 2016 ... The Cretaceous Period was the last segment of the Mesozoic Era. It lasted approximately 79 million years, from about 145.5 million years ago ...

www.encyclopedia.com/earth-and-environment/geology-and-oceanography/geology-and-oceanography/cretaceous-period

Get information, facts, and pictures about Cretaceous period at Encyclopedia. com. Make research projects and school reports about Cretaceous period easy ...

www.nationalgeographic.com/science/prehistoric-world/cretaceous

Learn more about Earth's Cretaceous period from National Geographic.

animals.howstuffworks.com/dinosaurs/early-cretaceous-period.htm

The Early Cretaceous Period was a time in which the Earth was undergoing a process of change. Learn about the Early Cretaceous Period.

www.vocabulary.com/dictionary/Cretaceous%20period

from 135 million to 63 million years ago; end of the age of reptiles; appearance of modern insects and flowering plants.

www.britannica.com/science/Cretaceous-Period

Cretaceous Period: In geologic time, the last of the three periods of the Mesozoic Era. The Cretaceous began 145.0 million years ago and ended 66 million ...