If you want to track some down for yourself, check out the links below. I traded that camera in last summer for a new autofocus model, but alas, the Macro lens didn't work with the new-fangled mount. I dug my old SRT-101 out of a drawer and it works just fine, perhaps even better as it's focusing screen is easier to use. It weighs a ton, but it's not as if I have to carry it very far to take pictures in my backyard. The photographs were scanned and adjusted using PhotoShop to improve display, but absolutely no spines were added.
Fossil preparation can be fun, if a bit nerve-wracking.
While I can't claim to have unearthed any of my specimens, I have done a great deal of preparation on a number of them. Several, including the Dicranarus, Ceratarges and Cyphaspis still had a lot of matrix when I bought them. While I have really enjoyed watching them emerge from their stony tombs after hundreds of millions of years, I must admit that this can be an anxiety provoking experience, especially when working with small spines, hard matrix and an expensive fossil. I hope that you have learned something new about something old. There are a lot of books on fossils.