An article published in the journal “Biology Letters” describes a research on Chilesaurus diegosuarezi, a dinosaur that caused perplexity among paleontologists because it looked like a T.rex’s vegetarian cousin and had other characteristics that made it a kind of jigsaw puzzle of various species. According to Matthew Baron and Paul M. Barrett this dinosaur that lived in today’s Chile about 145 million years ago is a missing link that shows how carnivorous theropods have evolved into herbivorous long-necked ornithischians.