List of contributors; Foreword: Charles Mortran Sternberg and the Alberta Dinosaurs L. S. Russell; Preface; 1. Introduction: On systematics and morphological variation K. Carpenter and P. J. Currie; Part I. Methods: Clades and grades in ornithischian systematics P. A. Sereno; 2. Shape analysis in the study of dinosaur morphology R. E. Chapman; Part II. Sauropodomorpha: Morphometric study of Plateosaurus from Trossingen D. B. Weishampel and R. E. Chapman; 3. Species determination in Sauropod Dinosaurs with tentative suggestions for their classification J. S. McIntosh; Part III. Theropods: Variation in theory and in theropods R. E. Molnar; Variation in Coelophysis bauri E. H. Colbert; 4. Morphological variation in small theropods and its meaning in systematics: evidence from Syntarsus rhodesiensis of the Early Jurassic M. A. Raath; 5. Therapod teeth from the Judith River Formation of southern Alberta, Canada P. J. Currie, J. K. Rigby and R. E. Sloan; 6. The systematic position of Baryonyx walkeri A. J. Charig and A. C. Milner; 7. Variation in Tyrannosaurus Rex K. Carpenter; Part IV. Footprints: A name for the trace of an act: approaches to the nomenclature and classification of fossil vertebrate footprints W. A. S. Sarjeant; Part V. Summary and Prospectus: P. J. Currie and K. Carpenter.

"...presents a diverse array of original research on numerous dinosaur taxa, provides an excellent source of references, and is abundantly illustrated....succeeds in 'developing a better understanding of dinosaurs as biological species' (p. 309) and provides solid empirical evidence for ontogenetic and dimorphic variation in a broad range of dinosaurs." Sandra J. Carlson, GSA Today