Modern crocodylians-crocodiles, alligators, caiman (Central and South America), and gharials (India)-have evolved over 250 million years from a fully terrestrial, bipedal ancestor. Along with birds, crocodylians are the only living members of Archosauria, the group including nonavian dinosaurs.

1. Ruth M. Elsey and Alligators: An Appreciation, by James O. Farlow and Holly N. Woodward2. Three-Dimensional Developmental Atlas of the Crocodylus niloticus Skeleton, by Ricardo Araújo and Vincent Fernandez3. The Hyolingual Apparatus of Crocodylians: Functional Anatomy and Evolutionary History, by Peter S. Johnston4. Ontogenetic Changes in the Cross-Sectional Geometry and Deltopectoral Crest of the Humerus in Alligator mississippiensis, by Christopher R. Langel and Matthew F. Bonnan5. A Detailed Anatomical Study of the M. caudofemoralis longus in Alligator mississippiensis, by Ray Wilhite6. Bridging the Gap between Fossils and Genes in Archosaurs: Molecular Backbone of Dinosaur Necks, by Christine Böhmer7. Symbiotic Associations in Crocodylians: Present, Past, and Future, by Sarah W. Keenan and Marisa Tellez8. Estimating Total Length from Tooth Size in Alligator mississippiensis, by Patrick V. Wheatley, Ryan J. Haupt, and Alexander K. Hastings9. Taphonomic Approaches to Bite-Mark Analyses in the Fossil Record and Applications to Archosaurian Paleobiology, by Stephanie K. Drumheller, Domenic C. D'Amore, and Jackson K. Njau10. Analysis of Fossil Crocodylian Teeth as a Potential Indicator of Past Nesting Sites or Juvenile Refugia: A Test Case from the Miocene of Panama, by Ryan J. Haupt and Alexander K. Hastings11. Tales of Long Faces: piscivorous Archosauriformes and the Evolutionary Ways to Form a Fisher, by Lucy Gomes de Souza, Rodrigo Vargas Pêgas, Mauro Bruno da Silva Lacerda, and Douglas Riff12. How the Study of Crocodylian Teeth Influences our Understanding of Dental Development, Replacement, and Evolution in Dinosaurs, by Kirstin S. Brink and Aaron R. H. LeBlanc13. Stable Isotopic Analyses of Living and Extinct Crocodylians: Implications for Understanding Their Biology, Environments, and Physiology, by Thomas M. Cullen14. Skeletal Tissues of Crocodylians: Evolutionary Insights for the Biology of Non-Avian Dinosaurs and Other Extinct Archosaurs, by Alida M. Bailleul and Mary H. Schweitzer15. Mapping Histovariability and Growth Patterns of Crocodylus niloticus Bred in Captivity and Its Paleobiological Implications, by Julia Audije-Gil, Fernando Barroso-Barcenilla, and Oscar Cambra-Moo16. Alligator Allometry, Osteohistological Correlates, and Paleobiological Applications, by Holly N. Woodward, Haley D. O'Brien, and James O. Farlow17. Modelling Gigantothermy Endorses the Tachymetabolic, Constitutional Endothermy of Ichthyosaurs, Mosasaurs, and Plesiosaurs (Sauropsida), by Peter Brice and Gordon Grigg18. Physiology and Anatomy of Extant Crocodiles as Windows to Pseudosuchian Evolution, by Roger S. Seymour19. Alligators, Crocodiles, and Chirotheres: Alligators, Crocodiles, and Chirotheres, by James O. Farlow, Cory J. Kumagai, and Hendrik KleinList of Contributors