Timeline of the major events of the evolution of earth

408 - 360 one thousand thousand geezerhood past          streams. The variety of come to plants ontogeny dramatically and the first land animal(prenominal)s appear. Tracheophyta, vascular plants, evolved along pissings retrieve supporting a greater diversity of invertabrates like spiders and scorpions. regulate supporting an episode of global cooling suggests that warm water system marine species were the most severely affected when ocean levels deject triggered by a glaciation event on Gondwana. 360 - 286 million senior age ago         The first reptiles evolve. Westlothiana, a tiny creature, contains umpteen mediocre characters between primitive tetrapods and true amniotes. 286 - 245 million days ago         The Continental islands move together to form the mussive land mass of Pangea. Ocean currents mod periodte temp timete coastal areas, and the Continental midland is dry. 245 - 200 million years ago        Â Â The continental mass was warm, but cut off from rain-bearing ocean winds, inland regions make vast deserts. In the seas ammonoids have replaced the trilobites of the Permian. Marine animals flourished in the warm, tropical oceans, For most of this period the dominant land animal is a mammal-like reptile. Their posture was sprawling and their size was from one to one-third meters in length. Dinosaurs begin to evolve. In the late Triassic. 208 - 150 million years ago         The rifting of the supercontinents continue.

The Atlantic Ocean opens and shallow seas cover much(prenominal) of North America. Climates were warm and wet. The primitive dinosaurs which survived th e extinctions at the end of the Triassic beg! in a 130 million year ascendancy of the planet. Primitive mammals, marsupials, and cranes have evolved. 149 - 65 million years ago         Temperatures on Earth were warm. Flora and fauna thrived around dick regions. The land was covered with forests and a large inland sea divided the North American Continent. Over the next era the planet would warm again... If you want to get a big essay, order it on our website: OrderEssay.net

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