Plesiadapiformes
While none of the groups normally directly assigned to this group survived , the group appears actually not to be literally extinct ( in the sense of having no living descendants ) as the remaining primates ( the crown primates or "Euprimates" ) appear to be derived Plesiadapiformes , as sister of e . g . 
<triplet> Plesiadapiformes <subj> primate <obj> parent taxon