A history of British fossil reptiles, London, Cassell & Company Limited, 1849-1884, Great Britain, paleontology, fossils, reptiles, fossil, fossil stories, The illustration showcases several fossilized tooth specimens attributed to the genus Polyptychodon, a prehistoric crocodyliform. Each numbered tooth exhibits distinct shapes and sizes, indicating variations among the specimens. The textures and contours highlight features commonly found in teeth of large reptiles, suggesting their function in feeding. The detailed rendering emphasizes the importance of these fossils in understanding the biology and evolution of ancient crocodyliforms.