Fossilization
Fossilization is the process by which remains of organisms (such as animals or plants) become fossils, preserved in rock layers over millions of years. This often involves mineral replacement, compression, and other processes that alter organic material into durable geological evidence.
- The Golden Age of Shark Evolution and Bizarre Adaptations
- Author / channel: PBS Eons
- URL: https://www.youtube.com/watch?v=4ihYiTOIBT0
- Summary: The video explores the “Golden Age of Sharks,” a period characterized by incredibly diverse and often bizarre cartilaginous fish, including the ancestors of modern sharks, rays, and chimaeras like the ratfish. This era preceded the dominance of iconic predators like the Great White.
2026 04 10 The Golden Age of Shark Evolution and Bizarre Adaptations