In this study, Eaton and Stewart introduce a new order of amphibians that they identify through their analysis of fossils discovered in the Pennsylvanian deposits of Kansas. The authors provide detailed morphological descriptions of the newly identified specimens, highlighting features that suggest a significant degree of adaptation to an aquatic lifestyle, akin to that of fish.The paper discusses the anatomical traits that distinguish this new order from other known amphibians, such as unique cranial structures, fin-like limbs, and specific features of the vertebral column. The fossil evidence is contextualized within the broader evolutionary framework of amphibians, contributing to the understanding of the transition from fish to land-dwelling vertebrates.