Moldy fossils.

It's invertebrate time again. I've spent a lot of time in the Santee Limestone. It's a Middle Eocene marine formation with a lot of macrofossils. Most of the time I'm looking for protocetids. But I can't pass up a good invertebrate when I see it. It takes a lot of work to clean them up. But sometimes the results are impressive. The original shell material rarely survives. What I usually find is casts. But occasionally I find the molds. When I come across a complete mold of a gastropod I sometimes bring it home in the original block of limestone. I then fill it with liquid plastic. Then I remove the limestone to see what the original shell looked like. Sometimes I get great detail and it looks just like a modern shell. It's just another way to enjoy the hobby of fossil collecting.