In a stunning discovery high in the Andes Mountains, scientists have unearthed one of the world’s oldest known dinosaurs—Huayracursor jaguensis. This small, long-necked reptile lived approximately 230 million years ago during the late Triassic period, a time when dinosaurs were just beginning to emerge.
The fossil was found at an altitude of 3,000 meters in La Rioja Province, northwestern Argentina, by a team from CONICET, the country’s national scientific research institute. Remarkably, the skeleton is nearly complete, including parts of the skull, a full vertebral column extending to the tail, and intact forelimbs and hindlimbs.
🔍 Why It Matters
Huayracursor jaguensis offers a rare glimpse into the early evolution of dinosaurs. Despite its modest size—about 2 meters long and weighing around 18 kilograms—it may hold clues to how sauropods, the giant long-necked dinosaurs, evolved their iconic body structure. Researchers believe this species represents a transitional form, bridging the gap between small bipedal ancestors and the massive quadrupeds that followed.
The discovery not only enriches our understanding of dinosaur origins but also redefines the evolutionary timeline of sauropods. It suggests that the development of long necks began much earlier than previously thought.
Sources:
- Phys.org – One of world's oldest dinosaurs discovered in Argentina
- Protothema – Argentine scientists discover nearly complete skeleton
- MSN – Oldest Known Dinosaur Ancestor Discovered
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