Class [Mammalia] Linnaeus, 1758 - mammals
Count: -
   Order †Plesiadapiformes Simons & Tattersall, 1972 see Suborder Plesiadapiformes Simons & Tattersall, 1972
  Count: [†*] †9f;44g;99s
     Superfamily †Microsyopoidea Osborn & Wortman, 1892
    Count: [†*] †2f;15g;27s
       Family †Microsyopidae Osborn, 1892
      Count: [†*] †9g;18s
         Genus †Craseops Stock, 1934
        Count: [†*] †1s
           †Craseops sylvestris Stock, 1934
          Count: -