The Carboniferous

During the Carboniferous life would recover from the mass extinction event at the end of the Devonian. Due to the warm, moist climate terrestrial plants would evolve greatly during this period, with the vascular seed plants beginning to dominate terrestrial forests, instead of their seedless predecessors. The bountiful forests would generate so much oxygen that the atmospheric oxygen concentration would reach its highest point in Earth's history. This in turn would give rise to some of the largest terrestrial arthropod species to ever exist. Terrestrial vertebrates continued to diversify giving rise to the first true amphibians and by the end of the period, the first true reptiles. In this video, That Bio Doc describes what life was like during the Carboniferous 358.9 - 298.9 million years ago.