| Diet | Herbivore |
| Height | 4m |
| Length | 12m |
| Weight | 8 tonnes |
| Environment | Land |
| Era | Cretaceous |
| Period | Early Cretaceous |
| Type | Sauropod |
| Location | Argentina |
Comahuesaurus was a distinctive sauropod dinosaur that roamed the ancient landscapes of Argentina during the Early Cretaceous period, approximately 119.57 million years ago. Named after the Comahue region where it was discovered, this impressive herbivore represents an important member of the sauropod family tree, providing valuable insights into the evolution of these long-necked giants in South America.
Measuring approximately 12 metres in length and standing about 4 metres tall at the hip, Comahuesaurus was a moderately-sized sauropod compared to some of its colossal relatives. Its fossils were discovered in the Lohan Cura Formation in Neuquén Province, Argentina, a region rich in Cretaceous dinosaur remains. Like other sauropods, it possessed the characteristic long neck, small head, massive body, and lengthy tail that made these dinosaurs some of the most recognisable creatures of the Mesozoic Era.
As a herbivore, Comahuesaurus would have spent much of its time feeding on the abundant plant life of Early Cretaceous Argentina. Its long neck allowed it to reach vegetation at various heights, from ground-level ferns and cycads to the crowns of tall conifers. The dinosaur's teeth were adapted for stripping leaves rather than chewing, and like other sauropods, it likely swallowed stones to help grind plant material in its stomach.
The discovery of Comahuesaurus has helped palaeontologists better understand the diversity of sauropod dinosaurs that inhabited South America during the Cretaceous period, contributing to our knowledge of how these magnificent creatures evolved and spread across the ancient supercontinent of Gondwana.
Comahuesaurus possessed the typical sauropod features of a long, flexible neck, relatively small head, and massive body supported by four sturdy legs. Its vertebrae showed distinctive characteristics that helped palaeontologists classify it within the Rebbachisauridae family, though specific unique features are still being studied.
Comahuesaurus likely lived in herds, moving slowly through the Early Cretaceous forests and plains of Argentina in search of food. As a large herbivore, it would have spent most of its waking hours feeding, using its long neck to browse vegetation at different heights without having to move its massive body frequently.
| Phylum | Chordata |
| Class | Saurischia |
| Family | Rebbachisauridae |
| Genus | Comahuesaurus |
Comahuesaurus was first described by José Bonaparte and Jaime Powell in 1991. The original fossils were discovered at Lohan Cura Formation, Neuquén Province, Argentina.
