Examples of sea life abundant during this geologic period include the blastoids. This period saw the appearance of a group of amphibians with reptile 
Examples of sea life abundant during this geologic period include the blastoids. This period saw the appearance of a group of amphibians with reptile traits known as the anthracosaurs. It saw the occurrence of the Variscan and Appalachian orogenies, which ultimately fused together the supercontinents of Laurussia and Gondwana. Tetrapods became more abundant in this period due to the development of the amniotic egg. This period saw the flourishing of gigantic insects due to increased vegetation, which produced high oxygen levels in the atmosphere. Divided into the Mississippian and the Pennsylvanian and taking place after the Devonian and before the Permian, FTP, name this geologic period which takes its name from the formation of underground coal deposits that occurred within it.
Examples of sea life abundant during this geologic period include the blastoids.
Carboniferous Period