Peruvian paleontologists have discovered a 9-million-year-old fossil of Cosmopolitodus Hastalis, an ancestor of the great white shark, in the Pisco Basin. The nearly-complete fossil exhibits exceptional fossilization, including preserved sardine remains in its stomach. This extinct species could grow near seven meters in length and had teeth measuring 8.9 centimeters. These findings contribute notably to the understanding of marine life in the ancient Pacific.
Paleontologists in Peru have unveiled a remarkable 9-million-year-old fossil of an ancestor to the great white shark, identified as Cosmopolitodus Hastalis. Discovered in the Pisco Basin, approximately 235 kilometers south of Lima, this nearly-complete specimen is notable for its exceptional fossilization and the preservation of numerous sardine remains in its stomach. The shark, extinct now, could reach lengths nearing seven meters and possessed teeth measuring up to 8.9 centimeters. The findings indicate it thrived in the southern Pacific Ocean, preying primarily on sardines, which were a staple in its diet at the time, as anchovies had not yet evolved.
Cesar Augusto Chacaltana, an engineer at INGEMMET, emphasized the significance of the fossil’s preservation, while paleontologist Mario Urbina stated the rarity of complete shark fossils globally, which affirm the remarkable nature of this find. The fossil was displayed in glass urns, showcasing various elements, including a formidable, sharp-toothed jaw. This presentation aligns with previous discoveries in the region, highlighting Peru’s rich paleontological landscape that includes fossils of prehistoric creatures from crocodiles to river dolphins, dating back millions of years.
The discovery of the Cosmopolitodus Hastalis fossil contributes significantly to the understanding of marine biology and evolutionary history, particularly regarding the lineage of the great white shark. The Pisco Basin is renowned for its fossil-rich deposits, making it a focal point for paleontological studies. The findings reiterate the diversity of marine life that has existed in this area, revealing dietary habits and predatory behaviors of prehistoric sharks, alongside other ancient aquatic species.
In summary, the unveiling of the 9-million-year-old shark fossil in Peru sheds light on the ancestral connections between ancient marine predators and contemporary species like the great white shark. The exceptional preservation of the fossil and its associated remains provides invaluable insights into the diet and ecology of marine life in prehistoric oceans. This discovery enhances the scientific community’s knowledge and emphasizes the importance of Peru as a significant site for paleontological research.
Original Source: www.indiatoday.in
