From the reviews: "This book presents the first detailed review of the Paleogene avian fossil record on a worldwide scale. Included in the book are several black-and-white photos of the actual fossil specimens. Anyone with an interest in avian or Paleogene paleontology will want this book!" (GrrlScientist, Birdbooker Report 75: Living the Scientific Life, July, 2009) "The volume is largely made up of commentaries on the skeletal material ... and includes biogeographic and paleoecologic assessments of faunas. ... The book contains photographs of many of the systematically important materials ... . References to previous publications are exhaustively numerous. This is a book for specialists. Summing Up: Recommended. Graduate students and above." (D. Bardack, Choice, Vol. 47 (3), November, 2009)