Accueil > Equidae tridactyles (Hipparions sensu lato) > Northamerican archaic skulls, mandibles, and metapodials > Remarks > Preorbital Fossa : one possible cause

Preorbital Fossa : one possible cause

lundi 28 janvier 2013, par Véra Eisenmann

Many explanations have been proposed for the function(s) of the POFs.
In Equus at least, one possible cause (not "function") is the "caveing-in" of the malar region when it is no more "sustained" by cheek teeth because they are too worn.

As example, here is the skull of an E. caballus found inside a Kurgan (MGRI 1772, Tiraspol, Moldau) and its upper cheek teeth.


  • MGRI 1772 CraProf
  • MGRI 1772 P2-M3sup