Acostasaurus
| Acostasaurus Temporal range: Barremian ~ | |
|---|---|
| Cranial reconstruction of Acostasaurus pavachoquensis | |
| Scientific classification | |
| Domain: | Eukaryota | 
| Kingdom: | Animalia | 
| Phylum: | Chordata | 
| Class: | Reptilia | 
| Superorder: | †Sauropterygia | 
| Order: | †Plesiosauria | 
| Family: | †Pliosauridae | 
| Genus: | †Acostasaurus | 
| Species: | †A. pavachoquensis | 
| Binomial name | |
| †Acostasaurus pavachoquensis Gómez Pérez & Noè, 2017 | |
Acostasaurus (meaning "Acosta's lizard") is an extinct genus of possibly Thalassophonean pliosaurid known from the Barremian of the Paja Formation, Colombia. The type specimen, UNDG R-1000, is known from a near complete skull, and postcranial elements including a complete hindlimb and various vertebrae. The specimen has an estimated size of over 4 metres (13 ft) in length.