omnivorous sauropods etc.

[hammeris1@bellsouth.net]

During their feeding in the rich green munchie world of the Mesozoic (where 
applicable), undoubtably the various herbivores - especially the huge ones - 
would have had to eat the occassional insect/larvae/eggs, and probably the 
occassional couldn't-get-out-of-the-way-fast-enough small salamander or lizard.

How important was this small bit of animal matter in their diet?
Were the trace elements beneficial?

What did they bring to the table? (no pun intended)