| Acostasaurus Temporal range: Barremian
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| Cranial reconstruction of Acostasaurus pavachoquensis | |
Scientific classification 
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| Domain: | Eukaryota |
| Kingdom: | Animalia |
| Phylum: | Chordata |
| Class: | Reptilia |
| Superorder: | †Sauropterygia |
| Order: | †Plesiosauria |
| Family: | †Pliosauridae |
| Genus: | †Acostasaurus |
| Species: | †A. pavachoquensis
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| Binomial name | |
| †Acostasaurus pavachoquensis Gómez Pérez & Noè, 2017
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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.[1] The specimen has an estimated size of over 4 metres (13 ft) in length.[2]
- ^ Marcela Gómez Pérez; Leslie F. Noè (2017). "Cranial anatomy of a new pliosaurid Acostasaurus pavachoquensis from the Lower Cretaceous of Colombia, South America". Palaeontographica Abteilung A. 310 (1–2): 5–42. doi:10.1127/pala/2017/0068.
- ^ Cortés, Dirley; Larsson, Hans C.; Parra, Juan De Dios (2022). "The Early Cretaceous Paja Formation biota in Colombia reveals an exuberant predator fossil record and a complex ecological network". 82nd Annual Meeting - SVP 2022 Program Guide (PDF). Society of Vertebrate Paleontology. p. 136.