The Appendages, Anatomy, and Relationships of Trilobites

The Appendages, Anatomy, and Relationships of Trilobites, published in 1920 by Percy E. Raymond, is a scientific study focusing on the anatomy of trilobites, an extinct group of marine arthropods. The work details the structure and significance of their appendages while summarizing historical misconceptions and advancements in the understanding of trilobite anatomy, influenced by earlier researchers like Charles Emerson Beecher. Raymond's meticulous examination of fossil specimens highlights the challenges faced by paleontologists in studying these ancient creatures and their evolutionary context.