Scientists in Argentina have found fossilised dinosaur bones in the Andes Mountains. The bones belong to one of the world’s oldest dinosaur species.
Palaeontologists found the skeleton about 3,000 metres above sea level. The fossils were from a small reptile with a long neck. It is called Huayracursor jaguensis.
The species roamed the earth between 230 and 225 million years ago. This makes it one of the world’s oldest dinosaurs. It lived at the end of the Triassic period. This is when the first dinosaurs and ancestors of mammals began to appear.
The discovery was published in the Nature science journal.
Researchers noted that an adult Huayracursor jaguensis was about two metres long. It weighed about 18kg.
