One living South American marsupial , the monito del monte , has been shown to be more closely related to Australian marsupials than to other South American marsupials ; however , it is the most basal australidelphian , meaning that this superorder arose in South America and then colonized Australia after the monito del monte split off .
One living South American marsupial , the tiny Monito del Monte , is more closely related to Australian marsupials than to other South American marsupials .