Hominin is the subtribe of tribe Hominini. These belong to modern human (Homo) ancients. They are evolved from the split with chimpanzees. So all Homo termed species are Hominin. From the given picture, there are five hominin species coexisted 1.7 million years ago. Their names are Homo ergaster, Homo sapiens, Homo neanderthalensis, Homo erectus and Homo habilis. Solution Hominin is the subtribe of tribe Hominini. These belong to modern human (Homo) ancients. They are evolved from the split with chimpanzees. So all Homo termed species are Hominin. From the given picture, there are five hominin species coexisted 1.7 million years ago. Their names are Homo ergaster, Homo sapiens, Homo neanderthalensis, Homo erectus and Homo habilis..