Rugops, which translates to 'wrinkle face', stands as a solitary representative in its genus, a basal abelisaurid theropod dinosaur unearthed in Niger from the Late Cretaceous epoch (Cenomanian stage, approximately 95 million years ago) within what is now recognized as the Echkar Formation.

The sole species, Rugops primus, remains exclusively identified through a partial skull. Measurements suggest Rugops measured around 4.4 to 5.3 meters (14.4 to 17.4 feet) in length and weighed approximately 410 kilograms (900 pounds). Notably, its cranial apex displays various depressions aligning with an overlying pattern, and the snout's frontal section is speculated to have featured a defensive, armor-like outer layer.

Numerous carnivorous theropod dinosaurs have faced speculation of being scavengers. However, Rugops stands as an example where this assumption might hold true. Abelisaurids, including Rugops, are noted for their relatively weaker bite forces, particularly in comparison to the formidable tyrannosaurids of the late Cretaceous. Additionally, Rugops possessed teeth that appear notably less robust than those of its fellow abelisaurids.

A potential scenario for a scavenging lifestyle can be inferred from distinct facial features, as suggested by the presence of blood vessels. It's conceivable that Rugops directed blood into the soft tissues of its snout or displayed some form of soft tissue characteristic, possibly intimidating other carnivores away from carcasses by projecting a more menacing appearance than its actual capabilities. By assuming a posture of size and intimidation, Rugops might have effectively avoided engaging in direct confrontations.