"The authors do an excellent job of presenting the current state of knowledge, the result of 167 years of research. They provide a historical summary, put the White River sequence in a wide context, and offer environmental interpretations based on fossils, sediments, ancient soils, and other post-deposition processes. . . . Highly recommended."—Choice"In summary, this is a worthy successor to the work of O'Harra . . . It feels directed to the knowledgeable amateur or the specialist wanting an overview of the Badlands. . . . Job well done!"—Journal of Vertebrate Paleontology"Anyone interested in Cenozoic vertebrates or episodes of climate change in the geologic past will find this a valuable reference."—Quarterly Review of Biology