Amphibian Evolution: The Life of Early Land Vertebrates. Topics in Paleobiology. By Rainer R. Schoch. Hoboken (New Jersey): Wiley Blackwell. $149.95 (hardcover); $89.95 (paper). xi + 264 p. + 16 pl.; ill.; index. ISBN: 978-0-470-67177-1 (hc); 978-0-4