A MYSTERIOUS PERIOD

CARBONIFEROUS PERIOD

The fish and once all the kind of invertebrates ruled the seas,the sky by birds and once reptiles and land by mammals and once all vertebrates.But is one question:have ever insects rule the earth?The answer is yes,at a time period called the carboniferous era that started 358mya and ended 298mya.Our story starts with the end of the Devonian era,when our ancestors start to look like more reptilian than amphibian.The plant life start to grow unstoppable,so our cold-blooded ancestors lose size because the climate became wetter and colder.But why the insects ruled at that time,it’s because the oxygen levels began to rise and the insects grow to gigantic sizes.The climate became much wetter and tropical so the amphibians lived in the swamps that were very hot and didn’t lose but take more size.The 50m tall may look like trees but they are actually relatives of ferns.Our 50cm long lizard ancestor called Petrolacosaurus is an easy target for many predators like Mesothelea spider,which  is at the size of a human head,she hide on her underground burrow and when sense prey,strike or the Arthropleura,a 3m long millipede that is omnivore,it ate 1 tonne of vegetation a year and when catch spiders,1m long scorpions and reptiles.it berried it’s shelf alive and when something go under it pop and catch it.The carboniferous era ended with a mass extinction,high oxygen levels mean that everything burns quickly,a storm burn almost all the swamp forests in the world and push oxygen levels down,wipedout all the giant insects and gave to the reptiles the chance of life,in the next period called the Permian the reptiles will rule the land,but in the end of this era 95% of life will be wiped out.