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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.
Location Berkeley County, South Carolina, USA

ID733
Memberpaleobum
Date Added12/18/2006

Here are a few echinoids form the Santee Limestone. From left to right; Eurhodia holmesi, Cassidulus conradi carolinensis, Cassidulus conradi, and Eurhodia rugosa.
Here are two gastropodes of the same species. The one on the left has the original shell detail. The one on the right is an internal cast of the same shell.
A closer look at the gastropode. This detail is a result of the original shell dissolving and then fine sand or clay fills in the void.
A nice Linthia wilmingtonensis. This species has a very thin shell. It easily falls apart after it dies. Complete specimens are rare.
A couple of nice gastropods.
  

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Where are all the teeth?
Where are all the teeth?
Pack rats.
Pack rats.
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