Temnospondyli is an extinct group of amphibians that thrived from the Late Carboniferous to the Late Cretaceous periods. They are characterized by their diverse body shapes and sizes, ranging from small, agile forms to large, crocodile-like creatures. Temnospondyls are known for their unique skull structures, which often feature large, flat heads and numerous teeth. These amphibians played a significant role in ancient ecosystems, often occupying aquatic environments. Some species were fully aquatic, while others adapted to semi-terrestrial lifestyles. Their fossils have been found worldwide, providing valuable insights into the evolution of early amphibians and their transition from water to land.