Dr. Todd D. Cook

As a vertebrate paleontologist specializing in the origin and evolution of chondrichthyans (sharks and rays), I frequently use one of the world’s foremost ichthyological references, “Fishes of the World.” I was honored to review the chondrichthyan chapter for the book’s authors. I selected this book to be added to the Penn State Libraries collection in the hopes that it will inspire others who share a similar passion for paleoichthyology.