Gastralia

["Rich Hengst" <rhengst@davros.cc.purduenc.edu>]

I need to know more about the distribution of gastralia (belly or ventral 
ribs) among dinosaur groups.  I have seen gastralia in sketches and 
displays of theropods.  I have also been told that they occur in sauropods 
with Camarosaurus being the first recorded.  I believe Ken Carpenter once 
told me that they may have occurred widely among sauropods.  Does anyone 
know if they are found in ornithiscians??  Any and all info is 
appreciated; references would be helpful.

Rich Hengst