User blog comment:Kogath/Monster Hunter: World Discussion/@comment-26421638-20191031102905/@comment-6050823-20191102192056

Since Scarred Yian Garuga is being treated as the original, I say it should be moved to first generation, but it's worthnoting on its page that it came before the unscarred regular ones we see later down the line. The only reason why I chose to put it as a 2nd Gen monster was because that's where I recall seeing that name, 傷ついたイャンガルルガ, first appear.