linguistic:translation, structural:summarization
Prehistoric

During the Pleistocene El Salvador was inhabited by now extinct megafauna species, including the elephant-sized giant ground sloth Eremotherium, the rhinoceros-like Mixotoxodon, the gomphothere (elephant-relative) Cuvieronius, the glyptodont Glyptotherium, the llama Hemiauchenia, and the horse Equus conversidens. El Salvador has likely been occupied by humans since the Paleoindian period, based on fluted stone points found in western El Salvador.