Voetsporen van een Plectropterna gracilis en een Arachnichnus dehiscens before 1863

This photo, taken before 1863 by J.L. Lovell, depicts two fossil prints. The print on the left is of a "Plectropterna gracilis" and shows the animal's tracks as it moved across the ground. The print on the right is an "Arachnichnus dehiscens". The photo, which is a black and white image, offers a glimpse into the world of prehistoric creatures through their fossilized footprints. These prints, found on a stone slab, provide scientists with valuable insights into the anatomy and behavior of ancient animals. The detailed image captures the texture of the stone and the subtle nuances of the tracks, making it a valuable resource for both researchers and those fascinated by paleontology.