Q-M242 is the parent to all other Q branches. Its parent is P-M45. YFull dates show that Q-M242 is between 34,000 and 29,800 years old (95% CI). This is a much older date than in older published studies, and perhaps helps explain the great geographic spread of the branches under it.

The Q-M120 From Lima, Peru

Lima is the capital city of Peru in South America. It is unsurprising then that the 1000 Genomes project found a Q sample there. Sample HG01944 from that project though does not seem to belong in South America. You see, it is Q-M120, and that is an East Asian lineage.