Devonian Period of geological history the period between races there are about 410 million years ago and 360 million years, making it one of the periods of the central th4e Paleozoic era, an era of primitive life on earth . Devonian takes its name from Devonshire, England, where the rock formations of that time in ancient history are to
The world’s land was closed in three continents now. Most current regions of the southern hemisphere made up a three continental blocks Devonian Gondwana super continent land. Laurentia and Baltica, the other two continents collided to form during this period Euramerica. Later in the Paleozoic era, all these continental blocks were mixed to form a huge continent superb Pangaea. The weather was warm and mostly dry across the globe the water level of the oceans and seas was generally high. Today is the Morocco lying under the warm sea water during the Devonian Period and tropical reef life was abundant.
Zoological, this period is known as the “Age of Pisces”, due to the diversification of fish flourished. Many of these differed quite fish today. They were very bone and some were jawless. However, various sharks and rays also lived during this period. On land, amphibians and insects were predominant.

Devonian Period finished with a mass extinction, known today as Frasnian-Famennian event. Land animals were not severely affected, but the event was a disaster for marine life hot water. Many species resolutely refused or disappeared altogether. The reasons for this mass death are not entirely clear, but theories include glaciation or asteroid impact, which can be both cooled water to the point that many forms (forms) of tropical life could not escape .