with a small bony frill at the back of the skull

replacing the function of canines found in other carnivores

Zalmoxes robustus was a herbivorous dinosaur that lived during the Late Cretaceous period in the Maastrichtian

Esta especie habitaba en ambientes de bosques densos y sabanas arboladas

Parasaurolophus walkeri Tlatolophus with a small bony frillParasaurolophus walkeri was a herbivorous dinosaur that lived during the Late Cretaceous period, approximately 76 to 73 million years ago, in what is now North America. It belongs to the family of hadrosaurids, known as "duck billed dinosaurs", and is notable for its distinctive tubular crest that extended backward from the top of its skull, making it one of the most recognizable hadrosaurids. The most complete specimens of Parasaurolophus walkeri