A New Order of Fish-like Amphibians from the Pennsylvanian of Kansas by Theodore H. Eaton and Peggy Lou Stewart is a valuable resource for the study of ancient animal evolution and morphology. In this book, the authors consider the discovery of a new species of archaeodipterids that existed in the Late Carboniferous of North America. Thanks to a detailed analysis of fossils, they describe various morphological features of these animals and draw conclusions about their place in taxonomy. This book is essential for paleontologists who are interested in studying the history of the development of life on Earth in ancient times.