Therapsida

Therapsida is a group of extinct mammals that evolved from reptiles during the Permian period (around 300 million years ago). They had a surface–dwelling body plan, consisting of legs and feet, and were one of the earliest land-dwelling vertebrates. Therapsida is significant as it is the closest evolutionary ancestor of modern-day mammals. This group of animals is the ancestor of modern-day mammals such as humans, cats, dogs, cows, and more. Therapsida fossils are important for understanding the evolution of mammals and their adaptations to life on land. Therapsida is also significant for the evolutionary history of life on earth. The unique features of their body plans, such as their strong limbs and feet, allowed them to diversify and become very successful in the early land environment. Their fossils also provide clues as to how modern mammals evolved and adapted to their environment. Understanding Therapsida and their evolutionary history can help us understand our own evolutionary history and how we differ from other animals.