Indian, Tertiary, and, Tertiary, Vertebrata, Calcutta, Geological, Survey, Office, 1874-1902, India, paleontology, vertebrates, fossil, The illustration depicts detailed anatomical drawings of the jaws of a prehistoric reptile, emphasizing various views and structures including the arrangement of teeth. Each jaw is meticulously labeled with numbered references to highlight specific features, illustrating the unique adaptations of the species. The top section presents a dorsal view, while the middle and bottom sections show side profiles with sharp, elongated teeth, suggesting a carnivorous diet. This visual representation offers insight into the morphology of ancient vertebrates and serves as a valuable resource for paleontological studies.