snouts of dinosaurs and crocodilians

[Andrew McDonald <equinox28@msn.com>]

Hello,

I am wondering if anyone can explain the structure of the scales on the 
heads of extant crocodilians; the scales do not look at all like those of 
the rest of the body.  The ridges and hornlets seem to correspond with the 
extensive grooves on many crocodilian skulls.  Could this in any way 
correlate to the patterns of grooves seen on theropods such as 
Carcharodontosaurus and Rugops?
Thanks in advance,

Andrew McDonald