Quilmesaurus
| Quilmesaurus Temporal range:  Late Cretaceous, | |
|---|---|
| The tibia of Quilmesaurus (A-B) compared to that of other abelisaurids | |
| Scientific classification | |
| Domain: | Eukaryota | 
| Kingdom: | Animalia | 
| Phylum: | Chordata | 
| Clade: | Dinosauria | 
| Clade: | Saurischia | 
| Clade: | Theropoda | 
| Family: | †Abelisauridae | 
| Clade: | †Furileusauria | 
| Tribe: | †Carnotaurini | 
| Genus: | †Quilmesaurus Coria, 2001 | 
| Type species | |
| †Quilmesaurus curriei Coria, 2001 | |
Quilmesaurus is a genus of carnivorous abelisaurid theropod dinosaur from the Patagonian Upper Cretaceous (Campanian stage) of Argentina. It was a member of Abelisauridae, closely related to genera such as Carnotaurus. The only known remains of this genus are leg bones which share certain similarities to a variety of abelisaurids. However, these bones lack unique features, which may render Quilmesaurus a nomen vanum (more commonly known as a nomen dubium, or "dubious name").