Trinisaura santamartaensis

† Trinisaura santamartaensis is a Late Cretaceous elasmarian ornithopod from the Snow Hill Island Formation of Antarctica. One of the few non-avian dinosaurs known from Antarctica, it inhabited polar forest environments during the Cretaceous greenhouse world.

Diet & Feeding

Herbivore

Trinisaura santamartaensis 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

Trinisaura santamartaensis 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.