Horns and Beaks: Ceratopsian and Ornithopod Dinosaurs

Horns and Beaks completes Ken Carpenter's series on the major dinosaur types. As with his volumes on armored, carnivorous, and sauropodomorph dinosaurs, this book collects original and new information, reflecting the latest discoveries and research on these two groups of animals. The Ornithopods include Iguanodon, one of the first dinosaurs ever discovered and analyzed, and perhaps the most common and best-documented group, the hadrosaurs or "duckbilled dinosaurs." The Ceratopsians include Triceratops, known for its distinctive three-horned skull and protective collar.

Contributors are Michael K. Brett-Surman, Kathleen Brill, Kenneth Carpenter, Benjamin S. Creisler, Tony DiCroce, Andrew A. Farke, Peter M. Galton, David Gilpin, Thomas M. Lehman, Nate L. Murphy, Christopher J. Ott, Gregory S. Paul, Xabier Pereda Suberbiola, Albert Prieto-Marquez, Bruce Rothschild, José Ignacio Ruiz-Omeñaca, Darren H. Tanke, Mark Thompson, David Trexler, and Jonathan R. Wagner.

New findings on Triceratops, Iguanodon, and other related dinosaurs

Kenneth Carpenter is the dinosaur paleontologist for the Denver Museum of Natural History and author of Eggs, Nests, and Baby Dinosaurs, editor of The Armored Dinosaurs and The Carnivorous Dinosaurs, and co-editor of Mesozoic Vertebrate Life and Thunder-Lizards, all published by Indiana University Press. He is also co-editor of Dinosaur Systematics, Dinosaur Eggs and Babies, and The Upper Jurassic Morrison Formation. He lives in Denver, Colorado.

Contributors

Preface

Acknowledgments

I. Beaked Dinosaurs: The Ornithopods

1. Callovosaurus leedsi, the Earliest Dryosaurid Dinosaur (Ornithischia: Euornithopoda) from the Middle Jurassic of England

José Ignacio Ruiz-Omeñaca, Xabier Pereda Suberbiola, and Peter M. Galton

2. Teeth of Ornithischian Dinosaurs (Mostly Ornithopoda) from the Morrison Formation (Upper Jurassic) of the Western United States

Peter M. Galton

3. A Description of a New Ornithopod from the Lytle Member of the Purgatoire Formation (Lower Cretaceous) and a Reassessment of the Skull of Camptosaurus

Kathleen Brill and Kenneth Carpenter

4. Turning the Old into the New: A Separate Genus for the Gracile Iguanodont from the Wealden of England

Gregory S. Paul

5. A Possible New Basal Hadrosaur from the Lower Cretaceous Cedar Mountain Formation of Eastern Utah

David Gilpin, Tony DiCroce, and Kenneth Carpenter

6. Postcranial Osteology of the Hadrosaurid Dinosaur Brachylophosaurus canadensis from the Late Cretaceous of Montana

Albert Prieto-Marquez

7. "Leonardo," a Mummified Brachylophosaurus (Ornithischia: Hadrosauridae) from the Judith River Formation of Montana

Nate L. Murphy, David Trexler, and Mark Thompson

8. Discussion of Character Analysis of the Appendicular Anatomy in Campanian and Maastrichtian North American Hadrosaurids--Variation and Ontogeny

Michael K. Brett-Surman and Jonathan R. Wagner

9. Osteochondrosis in Late Cretaceous Hadrosauria: A Manifestation of Ontologic Failure

Bruce Rothschild and Darren H. Tanke

10. Deciphering Duckbills: A History in Nomenclature

Benjamin S. Creisler

II. Horned Dinosaurs: Ceratopsians

11. Cranial Anatomy and Biogeography of the First Leptoceratops gracilis (Dinosauria: Ornithischia) Specimens from the Hell Creek Formation, Southeast Montana

Christopher J. Ott

12. Cranial Osteology and Phylogenetic Relationships of the Chasmosaurine Ceratopsid Torosaurus latus

Andrew A. Farke

13. Growth and Population Age Structure in the Horned Dinosaur Chasmosaurus

Thomas M. Lehman

14. Bone Resorption, Bone Lesions, and Extracranial Fenestrae in Ceratopsid Dinosaurs: A Preliminary Assessment

Darren H. Tanke and Andrew A. Farke

15. "Bison" alticornis and O. C. Marsh's Early Views on Ceratopsians

Kenneth Carpenter

Index