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
     Family †Toliapinidae Hooker, Russell & Phélizon, 1999
    Count: [†*] †5g;6s
       Genus †Altiatlasius Sigé, 1990
      Count: [†*] †1s
         †Altiatlasius koulchiiᵀ Sigé, Jaeger, Sudre & Vianey-Liaud, 1990
        Count: -