Omomyidae
Fossil omomyids are found in North America, Europe & Asia. It is one of two groups of holarctic Eocene primates with a wide distribution. The other group is the adapids (family Adapidae). Early representatives of the Omomyidae and Adapidae appear suddenly at the beginning of the Eocene (59 mya) in North America, Europe, and Asia. They are the earliest known crown primates, although obviously their origin was earlier, possibly much earlier.