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.

BIG Y for Guatemalan Mayan

Way way back in 2010, the project funded Walk Through the Y testing for a number of project members. One of those was a Guatemalan participant with Mayan ancestry.