Acostasaurus fossil map
Where fossils of Acostasaurus have been found, shown on the Earth as it looked about 130 million years ago and on today’s map.
Dots are fossil collections recorded in the Paleobiology Database. The “then” view moves today’s fossil sites back to their positions 130 million years ago (the time slice nearest the median age of the fossils) using the Merdith et al. (2021) plate model; positions are approximate. Open on the timeline map →
| Group | Plesiosaurs & kin |
|---|---|
| Lived | 125.77–121.4 million years ago (Barremian) |
| Periods | Cretaceous |
| Family | Pliosauridae |
| Named by | Gomez-Perez and Noe 2011 |
| Fossil records | 1 occurrences at 1 locations (PBDB) |
| Found in | Colombia |
| Rock formations | Paja |
About Acostasaurus
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.
Text in “About” is quoted from the Wikipedia article Acostasaurus (revision 1376080349), licensed under CC BY-SA 4.0; introduction excerpted verbatim, formatting removed. Ages, family, authority and fossil records: Paleobiology Database, accessed 23 October 2026. Ages are those of the rock layers the fossils were found in. Wikidata: Q55603154.
