Cambrian Fossils of the Yellowstone National Park is a scientific book written by Charles Doolittle Walcott, an American paleontologist who served as the fourth Secretary of the Smithsonian Institution. The book was first published in 1899 and is considered to be a seminal work in the field of paleontology.The book focuses on the Cambrian fossils found in the Yellowstone National Park, which is located primarily in the US state of Wyoming but also extends into Montana and Idaho. The Cambrian period is a geological period that occurred approximately 541 to 485 million years ago and is known for the emergence of complex life forms.Walcott's research in the Yellowstone National Park led to the discovery of numerous Cambrian fossils, including trilobites, brachiopods, and other marine invertebrates. The book includes detailed descriptions and illustrations of these fossils, as well as information on their geological context and significance.In addition to its scientific value, Cambrian Fossils of the Yellowstone National Park is also notable for its historical significance. At the time of its publication, the book helped to establish the importance of the Yellowstone National Park as a site for paleontological research and contributed to the growing understanding of the evolution of life on Earth.Overall, Cambrian Fossils of the Yellowstone National Park is a comprehensive and informative work that remains relevant to the study of paleontology and the history of science to this day.This scarce antiquarian book is a facsimile reprint of the old original and may contain some imperfections such as library marks and notations. Because we believe this work is culturally important, we have made it available as part of our commitment for protecting, preserving, and promoting the world's literature in affordable, high quality, modern editions, that are true to their original work.