| Diet | Omnivore |
| Height | 1.2m |
| Length | 2.4-3m |
| Weight | 50 kg |
| Environment | Land |
| Era | Cretaceous |
| Period | Late Cretaceous |
| Type | Theropod |
| Location | United States |
Hagryphus giganteus was a medium-sized theropod dinosaur that roamed the ancient landscapes of what is now southern Utah during the Late Cretaceous period, approximately 83.6 million years ago. This fascinating creature lived in the subtropical environment of the Kaiparowits Formation, within what is today the Grand Staircase–Escalante National Monument.
Measuring between 2.4 and 3 metres in length and weighing around 50 kilograms, Hagryphus was roughly the size of a large ostrich. As a theropod, it walked on two legs and possessed the characteristic features of this diverse group of dinosaurs. However, unlike many of its fearsome cousins, Hagryphus was likely an omnivore, feeding on a varied diet that may have included plants, small animals, eggs, and insects.
What makes Hagryphus particularly intriguing is that it represents one of the few known examples of its family from North America during this time period. The fossil evidence, though limited to an incomplete but well-preserved left hand and part of the forearm, provides valuable insights into the diversity of theropod dinosaurs that existed in the Late Cretaceous.
The discovery of Hagryphus has helped palaeontologists better understand the ecosystem of ancient Utah, revealing that this region supported a rich variety of dinosaur species during the Late Cretaceous period.
Hagryphus possessed distinctive elongated fingers with large, curved claws on its hands, typical of its family. The hand bones were particularly robust and well-developed, suggesting strong grasping abilities.
Based on its probable omnivorous diet, Hagryphus likely spent time both foraging for plant matter and hunting smaller prey. Its powerful hands with curved claws would have been useful for grasping food items, manipulating objects, and possibly climbing.
| Phylum | Chordata |
| Class | Saurischia |
| Order | Avetheropoda |
| Family | Caenagnathidae |
| Genus | Hagryphus |
Hagryphus was first described by Lindsay E. Zanno and Scott D. Sampson in 2005. The original fossils were discovered at Kaiparowits Formation, Utah, USA.
