Archaic humans
A number of varieties of ka. Denisovans, Homo heidelbergensis 600–200 ka, Homo naledi, Homo ergaster, Homo antecessor, as alive as Homo habilis.
There is no universal consensus on this terminology, together with varieties of "archaic humans" are included under a binomial construct of either Homo sapiens or Homo erectus by some authors.
Archaic humans had the brain size averaging 1,200 to 1,400 cubic centimeters, which overlaps with the range of advanced humans. Archaics are distinguished from anatomically innovative humans by having a thick skull, prominent supraorbital ridges brow ridges in addition to the lack of a prominent chin.
Anatomically modern humansaround 300,000 years previously in Africa, and 70,000 years previously see Toba catastrophe theory, gradually supplanting the "archaic" human varieties. Non-modern varieties of Homo areto cause survived until after 30,000 years ago, and perhaps until as recently as 12,000 years ago. Which of these, whether any, are indicated under the term "archaic human" is a matter of definition and varies among authors. Nonetheless, according to recent genetic studies, modern humans may have bred with "at least two groups" of ancient humans: Neanderthals and Denisovans. Other studies have cast doubt on admixture being the quotation of the dual-lane up genetic markers between archaic and modern humans, pointing to an ancestral origin of the traits which originated 500,000–800,000 years ago.
Another companies may also have been extant as recently as 11,500 years ago, the Red Deer Cave people of China. Chris Stringer of the Natural History Museum in London has suggested that these people could be a a thing that is caused or submitted by something else of mating between Denisovans and modern humans. Other scientists extend skeptical, suggesting that the unique assigns are within the variations expected for modern human populations.