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The Cretaceous Time Period

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by

Kate Petri

on 16 December 2012

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Transcript of The Cretaceous Time Period

The Cretaceous Time Period By Kate Petri Introduction After the Jurassic period, the Cretaceous period brought new species and plants. The Cretaceous period was the longest period on the time scale, starting around 146 million years ago and ending around 65 million years ago. Geography At the beginning of the Cretaceous period, the tectonics plate had not separated yet. At the end of the period, however, South America, Africa, Antarctica, and Africa were formed. The Indian subcontinent and Madagascar were still connected. Climate The climate during the Cretaceous period was very hot. Swamps covered the land and the sea levels were high. Organisms Common dinosaurs include triceratops and hadrosaurs. Marine animals included mosasaurs, pliosaurs, and pleasiosaurs. Grass first started appearing in the Cretaceous period. Environment Flowers first started appearing during this time and continents started taking the form that we recognize today. The insect population grew rapidly because of the flower growth and Carbon Dioxide levels in the air increased. Attractions Travelers might be interested in the dinosaurs of the Cretaceous period or the different plants and animals that do not exist today, such as the Microraptor bird. The warm weather would also be in attraction to travelers. Dangers Dangers include, of corse, the dinosaurs, as well as the constant change of the sea level and volcanic eruptions. To avoid these dangers, travelers might want to live in high areas away from volcanos.
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