Amphibamids

Amphibamids are a family of extinct synapsids, a group of mammals-like reptiles, that lived during the Permian and Triassic periods, approximately 299 to 201 million years ago. They are known for their unique combination of reptilian and mammalian features, making them important in the study of the evolution of mammals. Amphibamids are characterized by their small size, typically ranging from a few centimeters to a meter in length, and their semi-aquatic lifestyle. Their skulls are relatively small and their teeth are simple and conical, similar to those of early mammals. However, they also possess features typical of reptiles, such as scales and a single temporal opening in the skull. Amphibamids are believed to have been insectivorous, feeding on small invertebrates. The most well-known genus within this family is Amphibamus, which is known from numerous fossil specimens found in South Africa. The family Amphibamidae is part of the order Therapsida, which includes the ancestors of mammals. Despite their mammalian-like features, amphibamids are not considered direct ancestors of mammals, but rather a side branch of the therapsid lineage.