Class Mammalia Linnaeus, 1758 - mammals
   Order Scandentia Wagner, 1855 - tree shrews
     Family Tupaiidae Gray, 1825 - tree shrews
       1 Subfamily Tupaiinae Gray, 1825 see Family Tupaiidae Gray, 1825
       2 Subfamily Ptilocercinae Lyon, 1913 see Family Ptilocercidae Lyon, 1913