Order †Plesiadapiformes Simons & Tattersall, 1972 see Suborder Plesiadapiformes Simons & Tattersall, 1972
Count: 1o; †6f;18g;6s
   Superfamily †Microsyopoidea Osborn & Wortman, 1892
  Count: †3f;9g;6s
     1 Family †Picromomyidae Rose & Bown, 1996
    Count: [†g] †2g
     2 Family †Microsyopidae Osborn, 1892
    Count: †2g
     3 Family †Toliapinidae Hooker, Russell & Phélizon, 1999
    Count: [†*] †5g;6s