Fundamentals of Plant-Parasitic Nematode Diagnostics, Systematics, and Classification presents a comprehensive resource for those interested in nematode biosystematics. The microscopic size, character plasticity, habitat diversity, and habits of the nematodes have long posed several obstacles in their identification and derivation of evolutionary relationships. Unlike other animal groups, the exact diversity of the nematodes is also still significantly unknown, and except for some fossilized preservations in the ambers, any solid paleontological proof for these animals is lacking. In this critical bottleneck of having a solid comprehensive data profile in hand for phylogeny estimation, scientists are struggling to fully resolve the nematode evolutionary histories toward developing a definitive classification. This book takes advantage of the recent advances in molecular systematics along with the traditional proposals to create a single reference dataset for multiple scientific disciplines. By compiling and discussing the nematode classifications having been proposed over time, Fundamentals of Plant-Parasitic Nematode Diagnostics, Systematics and Classification establishes a foundational reference point upon which future research can be directed. Unlike other related books in this field mainly focused on a specific group or classification, this book includes the core theories and principles of taxonomy, systematics, phylogeny, and diagnostic nematode identification with management of character and publication data. This book will surely prove to be invaluable for the students, researchers, and scientists.