The two dinosaurs discovered by paleontologists in Madagascar are 230 million years old, 3 million more than the oldest remains found in Argentina. According to fingerprint studies, these animals of calf size, small head and long neck were herbivores and lived before the Jurassic, when Madagascar, Africa and South America constituted the unified continent of Pangaea.
This hitherto unknown species could be the precursor of the Jurassic period dinosaurs.