Newly Discovered Ancient Human?

Fossil remains of what appears to be a so far unknown species of humans have been discovered in East Asia. It is assumed they lived about 120,000 and 60,000 years ago. If this is the case, I can understand why they became extinct. Wolves became partners with humans, and became dogs, about 40,000 years ago. The newly discovered ancient humans could, thus, not have had dogs. Humans and dogs are a formidable partnership, so it is understandable humans without dogs did not survive. Modern day humans are lucky to have survived long enough that they got dogs.