Diagram lunches the fossils remains of a lower portion of a camel's leg each subsequent diagram shows the same portion of a camel's leg but the diagrams are from progressively later time. Forces the most recent fossil these diagrams demonstrate

the process of fossilization and how the leg bone changed over time. The first diagram shows the initial fossil remains of the lower portion of the camel's leg, while the subsequent diagrams show how the bone may have deteriorated, changed color, or become more compacted as time went on. These changes are due to natural processes such as mineralization and pressure from overlying sediments, which eventually lead to the formation of a fossil. The most recent fossil would be the one that shows the leg bone in its latest state of preservation.