| Thinocrinus gibsoni and Macrocrinus mundulus Edwardsville Formation Crawfordsville, Indiana Size: 7.5 cm for the Thinocrinus crown. This specimen was donated to the University of Michigan for permanent display in the new museum. | 
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| Thinocrinus gibsoni and Macrocrinus mundulus Edwardsville Formation Crawfordsville, Indiana Size: 7.5 cm for the Thinocrinus crown. This specimen was donated to the University of Michigan for permanent display in the new museum. |
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