minnbuckeye Posted May 20, 2021 Share Posted May 20, 2021 I was checking out my photos this evening and came across this "unknown" from a recent hunt in NE Iowa. The geology is Ordovician/ Maquoketa. The "fossil" was found with only the surface of #1 showing. It looked a bit sponge like to me. I tried splitting the surface off and found the left over rock had a surface shown in 2. I further split the rock into pieces 3, 4, 5, and 6. As you can see, the unknown flares out again at 6. This is probably "just a rock" but tis better to ask first. Mike Link to comment Share on other sites More sharing options...
Rockwood Posted May 20, 2021 Share Posted May 20, 2021 Bryozoans commonly look like this when only partially preserved. Frequently there is a layer at the surface which gives the identification. 1 Link to comment Share on other sites More sharing options...
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