High Quality Content by WIKIPEDIA articles! Eurasian Adam (also known as Australian/Eurasian Adam or Out of Africa Adam) is a name given to the man who was the common male-line (patrilinial) ancestor of all men with the single nucleotide polymorphism mutation on the Y chromosome known as "M168". In other words he is the most recent common patrilineal ancestor of all men in Haplogroup CT, the haplogroup which is defined by having a common ancestor who had M168.