Heterodontosaurinae

† Heterodontosaurinae — a Late Triassic dinosaur from Argentina. Herbivorous browser. Discovered in Argentina; contributes to the local paleofaunal record.

Diet & Feeding

Herbivore

Heterodontosaurinae 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

Triassic Late Mesozoic Era

Heterodontosaurinae lived during the Triassic Late period of the Mesozoic Era, approximately 237.0 to 201.4 million years ago.

The first true dinosaurs appeared during the late Triassic, including early theropods like Eoraptor and Herrerasaurus. Dinosaurs were still small and not yet dominant. The period ended with the Triassic-Jurassic extinction event.