Branchiosauridae
Branchiosauridae is an extinct family of small, aquatic tetrapods known as branchiosaurs. These animals lived during the Carboniferous and Early Permian periods, around 305-270 million years ago. Branchiosaurs are characterized by their elongated bodies, long slender limbs with many digits, and external gills that they retained throughout their lives. They likely inhabited slow-moving freshwater environments, where they fed on small invertebrates and algae. The presence of external gills suggests that branchiosaurs were not fully terrestrial like other early tetrapods, but rather spent most of their time in the water. Branchiosauridae is a diverse group, with many different species having been discovered over the years. These animals provide important insights into the evolutionary history of amphibians and the transition from water to land.