permealike

Permealike is a term used in the field of paleontology to describe a group of extinct marine reptiles that lived during the Mesozoic era, approximately 252 to 66 million years ago. These creatures are characterized by their elongated bodies, paddle-like limbs, and the presence of a notochord, a flexible rod that runs along the length of their bodies. The notochord is a remnant of the evolutionary pathway that led to the development of the backbone in vertebrates.

Permealike animals are believed to have been the ancestors of modern-day amphibians, reptiles, and mammals. They are further divided into two main groups: the placoderms and the acanthodians. Placoderms were armored fish that lived during the Devonian and Carboniferous periods, while acanthodians were a diverse group of fish that lived during the Devonian and Permian periods.

The study of permealike animals is important for understanding the evolution of vertebrates and the development of modern-day ecosystems. Fossils of these creatures have been found in various parts of the world, including North America, Europe, and Asia. The discovery and analysis of these fossils continue to provide valuable insights into the history of life on Earth.