Seymouria brolli is an extinct genus from the Early Permian period, bridging early amphibians and reptiles. It had a robust build, with limbs suited for land movement, and features indicating a semi-aquatic lifestyle. As a crucial transitional species, it showcases evolutionary advancements towards fully terrestrial life.

Seymouria brolli is not an extant species; it is a prehistoric amphibian from the Permian period. Fossils of Seymouria brolli have been found in North America, specifically in regions that are now part of the southwestern United States.

During the Permian period, the regions where Seymouria brolli fossils have been discovered were characterized by a warm and arid climate. These areas likely featured seasonal rivers and floodplains, which would have provided necessary moisture for amphibian life.

Seymouria brolli occupied a transitional niche between aquatic and terrestrial environments. It is believed to have lived near water bodies, such as rivers or lakes, where it could exploit both aquatic and terrestrial resources. This dual adaptation is reflected in its anatomical features, which suggest it was capable of moving efficiently on land while still relying on water for part of its life cycle.