 Generally speaking, elaphrosaurines were lightly built theropods, with small skulls and long necks and legs.If "Limusaurus" is any indication, adult elaphrosaurines were completely toothless, and their mouths were probably edged with a horny beak.It is likely that "Limusaurus" and other elaphrosaurines were primarily herbivorous as adults, due to mature "Limusaurus" specimens preserving gastroliths and chemical signatures resembling those of herbivorous dinosaurs.