Adapidae

The Adapidae is a family of extinct primates that radiated in the Eocene epoch between about 55 and 34 million years ago. 

Their skeleton looks like they were strepsirrhines (members of the group including the living lemurs, lorises, and bushbabies).
However, though there are similarities, there are some key elements missing compared to modern strepsirrhines.Gingerich P.D. and R.D. Martin 1981. Cranial morphology and adaptations in Eocene Adapidae .2. The Cambridge skull of Adapis parisiensis. American Journal of Physical Anthropology 56:235-257Fleagle J.G. 2000. The century of the past: One hundred years in the study of primate evolution. Evolutionary Anthropology 9:87-100.

 References 

Category:Primates