Dinosaurs In The Cretaceous Period
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Many great changes took place in the Cretaceous period. It included the splitting up of the earth's surface and formation of oceans and seas that provided habitat to aquatic animals and also a niche to mountains. The formation of oceans and seas provided humidity to the landscapes, and brought changes in the temperature that directly affected the booming of plants and animals.More...
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Cretaceous Time Period
The last stage of Mesozoic era, which is commonly known as Cretaceous period, had nearly 80 million years of long duration. However, in the beginning of this age and end of the Jurassic period, very insignificant or negligible extinction has been recorded such as bivalve mollusks species.In the Cretaceous period, the landmasses recorded significant changes. This included the separation of Laurasia and Gondwana and the development of North Atlantic Ocean towards the eastern side of Laurasia that spread over the east coast of North America and many parts of Western Europe.More...
Cretaceous Animals
The Cretaceous period was the time when most of the dinosaur species flourished. It occupied the last years of the Mesozoic Era. This period dates back to about 144 million years and ended about 65 million years ago.Just before the start of the Cretaceous period, new species of dinosaurs came into being. This was around 120 millions years back. The ceratopsian and the pachycephalosaurs dinosaurs were plant eaters.More...
Cretaceous Marine Life
Many of the marine species that existed during the Jurassic era continued to live during the Cretaceous period also. Different varieties of sharks and bony fishes were found in plenty during this era.One of the notable marine species that evolved during the Cretaceous years was the Mosasaurs, a type of lizard, about 14 meters long! Crocodiles and the dangerous plesiosaurs also existed, but were not as common as Mosasaurs. Ichthyosaurs species that were dominating the Jurassic and Triassic periods were extinct during the early years of the Cretaceous period.More...
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