Summary:
- The article discusses the discovery of a new species of dinosaur called Trierarchuncus prairiensis, which was found in North Dakota, USA.
- Trierarchuncus prairiensis was a herbivorous dinosaur that lived during the Late Cretaceous period, approximately 66 million years ago.
- The fossil remains of this new dinosaur species provide insights into the diversity of plant-eating dinosaurs that inhabited North America during the final stages of the Mesozoic Era.