Ring tailed lemurs'lineage is thought to go back at least 65 mya (million years ago). Lemurs are in the line thought to be some of the earliest primates. See book p. 67. (Wikimedia) More at http://www.global-awareness.org/books/worldhistory.html
Two ring-tailed lemur babies sit on their mother's back at the zoo in Frankfurt/Main, western Germany on March The babies were born at the zoo on Feb. Lemurs live mainly on the African island Madagascar and are active only in daylight hours.