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Ancient 23-Foot Crocodylian Dominated South America's Ecosystem

19 Ağustos 2026Science Daily

Fossil evidence from Miocene South America indicates that the massive crocodylian known as Purussaurus neivensis played a crucial role in the ancient food chain. Measuring approximately seven meters in length, this predator may have been more significant than mammals in regulating the populations of large herbivores.
The findings highlight the ecological importance of these ancient reptiles in maintaining the balance of their tropical ecosystem.
The Miocene epoch, spanning from about 23 to 5 million years ago, was a period marked by significant climatic and ecological changes. South America during this time was home to a diverse array of megafauna, including both large predators and herbivores.
The dominance of Purussaurus neivensis in the Miocene food web challenges traditional views that mammals were the primary predators of the time. This shift in understanding underscores the need for a reevaluation of predator-prey dynamics in prehistoric ecosystems, particularly in regions where large reptiles thrive…

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This summary is based on research findings and interpretations that may evolve with further studies.