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Two Silurian Fossils From Northern Illinois


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My son and I found these fossils yesterday at some old strip mines near home. We also found lots of crinoids and brachiopods. Any help on the two fossils here would be great. We are very inexperienced so sorry if this is an easy ID.






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The last one is a fenestrate bryozoan; the first may be an internal mold of a brachiopos or something.

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"There has been an alarming increase in the number of things I know nothing about." - Ashleigh Ellwood Brilliant

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>Paleontology is an evolving science.

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2 and 3 might be Pentamerous casts the last is bryozoan,

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