In Zalloua at al., 2008, Y-Chromosomal Diversity in Lebanon Is Structured by Recent Historical Events, the authors tested the Y-DNA of Druze, Muslims, and Christians in Lebanon.
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.