"Schwimmer offers a study of the paleoautecology of a Cretaceous crocodylian, Deinosuchus. Thoughtfully organized, the book's chapter headings reflect answers to some basic questions: How big was it? How old was it? Where was it found? What did it eat? How many species existed? Astute readers will gain insight into the thinking of a practicing vertebrate paleontologist as the author probes these questions. But the target audience for this trade book is not obvious—technical jargon is sometimes explained in the text (and thoroughly covered in the appendixes), but its usage in the text requires an advanced level of understanding. The author complains about the requirements of the zoological rules of nomenclature, which seems counterproductive in such a work. The book will be most useful for paleoecologists hoping to gain a deeper understanding of life in the Cretaceous. Upper—division undergraduates through professionals."—P. K. Strother, Boston College , Choice, December 2002"Schwimmer offers a study of the paleoautecology of a Cretaceous crocodylian, Deinosuchus. Thoughtfully organized, the book's chapter headings reflect answers to some basic questions: How big was it? How old was it? Where was it found? What did it eat? How many species existed? Astute readers will gain insight into the thinking of a practicing vertebrate paleontologist as the author probes these questions. . . . December 2002"—Choice