Tomayate is a palaeontological site located on the banks of the river of the same name in the municipality of Apopa. The site has produced abundant Salvadoran megafauna fossils belonging to the Pleistocene. The palaeontological site was discovered accidentally in 2000, and in the following year, an excavation by the Museum of Natural History of El Salvador revealed several remnants of Cuvieronius and 18 other species of vertebrates including giant tortoises, Megatherium, Glyptodon, Toxodon, extinct horses, paleo-llamas. The site stands out from most Central American Pleistocene deposits, being more ancient and much richer, which provides valuable information of the Great American Interchange, in which the Central American isthmus land bridge was paramount. At the same time, it is considered the richest vertebrate site in Central America and one of the largest accumulations of proboscideans in the Americas.