Not a problem. They are indeed bony scutes, as you've discovered. There's actually a ton of information that can be gleaned from the scutes, not just functionally but also for elucidating the relationships of the croc family tree.
I've done 3 croc skeletals so far, and the scutes are the most different part of them (with the skulls a close second).
What kind of differences are particularly evident in the scutes? I had a browse through photographs of living crocodilian species just then, and to my untrained eye, I can't pick out anything particular.
Some animals have very rounded scutes, some have very square ones. Some have both. There are different numbers of rows in different groups. Some have very tall spines on the tail, some (like Brachychampsa) have quite low tail spines. If you look at them up close there are often differences in the way blood vessels have made holes in them as well, and other morphological differences you wouldn't see in a skeletal reconstruction (or a photo that shows the whole animal).
Often a good croc paleontologist can identify the group, or even the genus, just by looking at a couple of pieces of armor. Now I'd be lucking to be able to put them into even the most general of groups based on the scutes, but then I don't work much on the croc-relative side of the archosaur family tree.