Cretaceous Crab/Lobster?

[GPayton]

I found these fragments of something crabby on my last trip to the North Sulphur River in Texas. They were partially exposed in one of the red bed layers of the Ozan Formation, and were so delicate that they started to crumble when I extracted them. I saved the more whole and identifiable pieces. They're a kind of muddy yellow color, with maybe some hints of the original pigmentation in the blue areas. The red beds tend to either turn fossils black (when they're phosphatized) or a dusty red, so this was quite an unusual find for me. The closest to an ID I've been able to get so far is some sort of lobster like an Enoploclytia, but other than that I'm unsure. Any help with an ID would be appreciated, as would any advice as to how I should go about preserving the fossils to make them more durable, as they are still extremely fragile.