Done a bit more to the head and added teeth and a tongue (which you cannot see). I decided that I am not gonna do too much more to the modeling side of things, I am now gonna start texturing the bugger - I ain't looking forward to pulling all those UVs about but its gotta be done!

It interesting that all the time I have been working on this model I am trying not to make it look like a crocodile. Perhaps Eryops was the great ancestor to a crocodile...