John B. Dunham

John B. Dunham was an American geologist and paleontologist known for his work in studying fossils and Earth's history. He made significant contributions to understanding the geological past through detailed fossil research and stratigraphy—the study of layers of rocks. His work helped clarify how different Earth's periods are connected and provided insights into the evolution of ancient life. Dunham's research has been fundamental in the field of geology, aiding scientists in dating rocks and understanding historical environmental changes. His contributions continue to influence geological and paleontological studies today.