paleontology history of the hearing system among mamals and prehuman species (Paul Marie Guyon )

Subject: paleontology history of the hearing system among mamals and prehuman species
From:    Paul Marie Guyon  <pmgorsay@xxxxxxxx>
Date:    Tue, 26 Sep 2006 00:20:33 +0200

Hello List

Can any one direct me to the work on history of hearing system 
development  ? Is it comparable with the eye system that was 
operational some 500000 years ago?
Paul Marie Guyon