Easily distinguished by the horns and frills on their skulls, ceratopsians were one of the most successful of all dinosaurs. This volume presents a broad range of cutting-edge research on the functional biology, behavior, systematics, paleoecology, and paleogeography of the horned dinosaurs, and includes descriptions of newly identified species.

PrefacePart 1. Overview 1. Forty Years of Ceratophilia Part 2. Systematics and New Ceratopsians 2. Taxonomy, Cranial Morphology, and Relationships of Parrot-Beaked Dinosaurs 3. A New Species of Archaeoceratops from the Early Cretaceous of the Mazongshan Area, Northwestern China 4. A Redescription of the Montanoceratops cerorhynchus Holotype with a Review of Referred Material 5. First Basal Neoceratopsian from the Oldman Formation, Southern Alberta 6. Zuniceratops christopheri: The North American Ceratopsid Sister Taxon Reconstructed on the Basis of New Data 7. Horned Dinosaurs from the Upper Cretaceous Cerro del Pueblo Formation, Coahuila, Mexico 8. New Basal Centrosaurine Ceratopsian Skulls from the Wahweap Formation, Grand Staircase-Escalante National Monument, Southern Utah 9. A New Pachyrhinosaurus-Like Ceratopsid from the Upper Dinosaur Park Formation of Southern Alberta, Canada 10. New Material of "Styracosaurus" ovatus from the Two Medicine Formation of Montana 11. A New Chasmosaurine from the Upper Cretaceous Ojo Alamo Formation, San Juan Basin, New Mexico 12. A New Chasmosaurine Ceratopsid from the Judith River Formation, Montana 13. Description of a Complete and Fully Articulated Chasmosaurine Postcranium Previously Assigned to Anchiceratops 14. A New, Small Ceratopsian Dinosaur from the Latest Cretaceous Hell Creek Formation, Northwest South Dakota, United States: A Preliminary Description Part 3. Anatomy, Functional Biology, and Behavior 15. Comments on the Basicranium and Palate of Basal Ceratopsians 16. Mandibular Anatomy in Basal Ceratopsia 17. Histological Evaluation of Ontogenetic Bone Surface Texture Changes in the Frill of Centrosaurus apertus 18. Modeling Structural Properties of the Frill of Triceratops 19. New Evidence Regarding the Structure and Function of the Horns in Triceratops 20. Evolutionary Interactions between Horn and Frill Morphology in Chasmosaurine Ceratopsians 21. Skull Shapes as Indicators of Niche Partitioning by Sympatric Chasmosaurine and Centrosaurine Dinosaurs 22. The Function of Large Eyes in Protoceratops: A Nocturnal Ceratopsian? 23. A Semi-Aquatic Life Habit for Psittacosaurus 24. Habitual Locomotor Behavior Inferred from Manual Pathology in Two Late Cretaceous Chasmosaurine Ceratopsid Dinosaurs, Chasmosaurus irvinensis and Chasmosaurus belli 25. Paleopathologies in Albertan Ceratopsids and Their Behavioral Significance Part 4. Horned Dinosaurs in Time and Space: Paleobiology, Taphonomy, and Paleoecology 26. An Update on the Paleobiogeography of Ceratopsian Dinosaurs 27. Unraveling a Radiation: A Review of the Diversity, Stratigraphic Distribution, Biogeography, and Evolution of Horned Dinosaurs 28. A Review of Ceratopsian Paleoenvironmental Associations and Taphonomy 29. Behavioral Interpretations from Ceratopsid Bonebeds 30. Paleontology and Paleoenvironmental Interpretation of the Kikak-Tegoseak Quarry, Northern Alaska: A Multi-Disciplinary Study of a High-Latitude Ceratopsian Dinosaur Bonebed 31. Taphonomy of Horned Dinosaurs from the Late Campanian Kaiparowits Formation, Grand Staircase-Escalante National Monument, Utah 32. A Centrosaurine Mega-Bonebed from the Upper Cretaceous of Southern Alberta: Implications for Behavior and Death Events 33. Insect Trace Fossils Associated with Protoceratops Carcasses in the Djadokhta Formation, Mongolia 34. Faunal Composition and Significance of High-Diversity, Mixed Bonebeds Containing Agujaceratops mariscalensis and Other Dinosaurs, Aguja Formation Big Bend, Texas Part 5. History of Horned Dinosaur Collection 35. Lost in Plain Sight: Rediscovery of William E. Cutler's Missing Eoceratops 36. Historical Collecting Bias and the Fossil Record of Triceratops in Montana Afterword Index