Handbuch der Paläoherpetologie: (Encyclopedia of Paleoherpetology.) O. Kuhn (Editor), Part 13, Thecodontia, by A.J. Charig, B. Krebs, H.D. Sues, and F. Westphal. G. Fisher, Stuttgart, New York, 1976, 137 pp., 63 text-figs., DM 98.00