Secernosaurus koerneri

† Secernosaurus koerneri is a Late Cretaceous hadrosaurid from Patagonia, Argentina, among the earliest hadrosaurs confirmed from South America. Its presence supports the hypothesis of dinosaur dispersal between North and South America.

Diet & Feeding

Herbivore

Secernosaurus koerneri was a plant-eating dinosaur. Herbivores typically fed on ferns, cycads, conifers, and other vegetation available during their era. Many herbivorous dinosaurs developed specialized teeth and digestive systems for processing tough plant material.

Time Period

Cretaceous Late Mesozoic Era

Secernosaurus koerneri lived during the Cretaceous Late period of the Mesozoic Era, approximately 100.5 to 66.0 million years ago.

The final age of dinosaurs, featuring iconic species like Tyrannosaurus rex, Triceratops, and Velociraptor. Dinosaurs reached their peak diversity before the catastrophic asteroid impact at the Chicxulub crater ended the Mesozoic Era.