Note: Cover -- Contents -- Contributors -- Reviewers -- Preface -- Acknowledgments -- Part 1. Overview -- 1 A History of the Study of Ornithopods: Where Have We Been? Where Are We Now? and Where Are We Going? -- Part 2. New Insights into Hadrosaur Origins -- 2 Iguanodonts from the Wealden of England: Do They Contribute to the Discussion Concerning Hadrosaur Origins? -- 3 Osteology of the Basal Hadrosauroid Equijubus normani (Dinosauria, Ornithopoda) from the Early Cretaceous of China -- 4 Gongpoquansaurus mazongshanensis (Lü, 1997) comb. nov. (Ornithischia: Hadrosauroidea) from the Early Cretaceous of Gansu Province, Northwestern China -- 5 Postcranial Anatomy of a Basal Hadrosauroid (Dinosauria: Ornithopoda) from the Cretaceous (Cenomanian) Woodbine Formation of North Texas -- 6 A Re-evaluation of Purported Hadrosaurid Dinosaur Specimens from the "Middle" Cretaceous of England -- 7 A New Hadrosauroid (Plesiohadros djadokhtaensis) from the Late Cretaceous Djadokhtan Fauna of Southern Mongolia -- 8 Hadrosauroid Material from the Santonian Milk River Formation of Southern Alberta, Canada -- Part 3. Hadrosaurid Anatomy and Variation -- 9 New Hadrosaurid (Dinosauria, Ornithopoda) Specimens from the Lower-Middle Campanian Wahweap Formation of Southern Utah -- 10 New Saurolophine Material from the Upper Campanian-Lower Maastrichtian Wapiti Formation, West-Central Alberta -- 11 Variation in the Skull Roof of the Hadrosaur Gryposaurus Illustrated by a New Specimen from the Kaiparowits Formation (late Campanian) of Southern Utah -- 12 A Skull of Prosaurolophus maximus from Southeastern Alberta and the Spatiotemporal Distribution of Faunal Zones in the Dinosaur Park Formation -- 13 Postcranial Anatomy of Edmontosaurus regalis (Hadrosauridae) from the Horseshoe Canyon Formation, Alberta, Canada. , 14 Cranial Morphology and Variation in Hypacrosaurus stebingeri (Ornithischia: Hadrosauridae) -- Part 4. Biogeography and Biostratigraphy -- 15 An Overview of the Latest Cretaceous Hadrosauroid Record in Europe -- 16 The Hadrosauroid Record in the Maastrichtian of the Eastern Tremp Syncline (Northern Spain) -- 17 Hadrosaurs from the Far East: Historical Perspective and New Amurosaurus Material from Blagoveschensk (Amur Region, Russia) -- 18 South American Hadrosaurs: Considerations on Their Diversity -- 19 The Hadrosaurian Record from Mexico -- 20 Stratigraphic Distribution of Hadrosaurids in the Upper Cretaceous Fruitland, Kirtland, and Ojo Alamo Formations, San Juan Basin, New Mexico -- 21 Relocating the Lost Gryposaurus incurvimanus Holotype Quarry, Dinosaur Provincial Park, Alberta, Canada -- Part 5. Function and Growth -- 22 Comparative Ontogenies (Appendicular Skeleton) for Three Hadrosaurids and a Basal Iguanodontian: Divergent Developmental Pathways in Hadrosaurinae and Lambeosaurinae -- 23 The Size-Frequency Distribution of Hadrosaurs from the Dinosaur Park Formation of Alberta, Canada -- 24 Osteohistology and Occlusal Morphology of Hypacrosaurus stebingeri Teeth throughout Ontogeny with Comments on Wear-Induced Form and Function -- 25 Three-Dimensional Computational Modeling of Pelvic Locomotor Muscle Moment Arms in Edmontosaurus (Dinosauria, Hadrosauridae) and Comparisons with Other Archosaurs -- 26 Duckbills on the Run: The Cursorial Abilities of Hadrosaurs and Implications for Tyrannosaur-Avoidance Strategies -- 27 Duck Soup: The Floating Fates of Hadrosaurs and Ceratopsians at Dinosaur Provincial Park -- 28 Hadrosauroid Jaw Mechanics and the Functional Significance of the Predentary Bone -- Part 6. Preservation, Tracks, and Traces. , 29 Debris Flow Origin of an Unusual Late Cretaceous Hadrosaur Bonebed in the Two Medicine Formation of Western Montana -- 30 Occurrence and Taphonomy of the First Documented Hadrosaurid Bonebed from the Dinosaur Park Formation (Belly River Group, Campanian) at Dinosaur Provincial Park, Alberta, Canada -- 31 Body Size Distribution in a Death Assemblage of a Colossal Hadrosaurid from the Upper Cretaceous of Zhucheng, Shandong Province, China -- 32 First Hadrosaur Trackway from the Upper Cretaceous (Late Campanian) Oldman Formation, Southeastern Alberta -- 33 Paleopathology in Late Cretaceous Hadrosauridae from Alberta, Canada -- 34 A Review of Hadrosaurid Skin Impressions -- 35 Soft-Tissue Structures of the Nasal Vestibular Region of Saurolophine Hadrosaurids (Dinosauria, Ornithopoda) Revealed in a "Mummified" Specimen of Edmontosaurus annectens -- 36 The Role and Biochemistry of Melanin Pigment in the Exceptional Preservation of Hadrosaur Skin -- Afterword -- Subject Index -- A -- B -- C -- D -- E -- F -- G -- H -- I -- L -- M -- N -- O -- P -- R -- S -- T -- Locality Index (by country) -- A -- B -- C -- F -- G -- I -- M -- P -- R -- S -- U -- Stratigraphy Index (by country) -- A -- B -- C -- F -- G -- I -- M -- N -- R -- S -- U -- Taxonomic Index -- A -- B -- C -- D -- E -- F -- G -- H -- I -- J -- K -- L -- M -- N -- O -- P -- R -- S -- T -- U -- V -- W -- X -- Y -- Z.