Adapids (members of the taxon Adapidae) are a diverse group of extinct primates that primarily radiated during the Eocene
epoch between about 55 and 34 million years ago. However, one specialized endemic Asian group (sivaladapines) survived into
the Miocene. Fossils of adapids are known from North America, Europe, Asia, and Africa. Adapids are one of two groups of Eocene
primates with a geographic distribution spanning holarctic continents, the other being the omomyids.