"Kostensuchas atrox (3D reconstruction) terrorized the floodplains of what is now Patagonia some 70 million years ago."
"A giant crocodile-like apex predator hunted large prey probably including medium-sized dinosaurs around 70 million years ago in what is now southern Argentina1."
"Credit: Jose Brusco (CC-BY-4.0) doi: https://doi.org/10.1038/d41586-025-02727-z"
Kostensuchas atrox lived about 70 million years ago in the floodplains of present-day Patagonia. The species functioned as a giant crocodile-like apex predator that hunted large prey, probably including medium-sized dinosaurs. Fossil evidence and 3D reconstructions indicate adaptations for powerful ambush predation in aquatic and marginal environments. Morphological features suggest a strong bite force and a semi-aquatic hunting lifestyle similar to modern crocodilians. The species occupied a top predator role within Late Cretaceous Patagonian ecosystems and shaped predator-prey dynamics across floodplain habitats.
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