<==o TETHYTHERIA [Uranotheria]
   |--o †EMBRITHOPODA
   |  `-- †Arsinotheriidae
   `--+--o HYRACOIDEA (tamaanit)
      |  |-- †Pliohyracidae
      |  `-- Procaviidae (tamaanit)
      `--o TETHYTHERIA
         |-- SIRENIA (seireenieläimet)
         `--o BEHEMOTA
            |-- †DESMOSTYLIA
            `-- PROBOSCIDEA (norsueläimet)

Reference(s):


McKenna, M. C. & Bell, S. K., eds., 1997:
Classification of mammals; above the species level.

--Columbia University Press, New York, 1997.
   

   Froelich, D. J., 1999: Phylogenetic systematics of basal perissodactyls.
–Journal of Vertebrate Paleontology: Vol. 19, #1, pp. 140 - 159