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Name:
Onychocrinus sp.
Age: Mississippian
Formation: Ridenhower Formation
Location: Millstadt, Illinois
Size: Crinoid crown is 1.6 inches. Stem is 4.5 inches.
This specimen is not for sale
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This is a very fine crinoid from a site that usually does not produce crinoids. The Ridenhower Formation at Millstadt, Illinois is a well-known site for blastoids. The crinoid is nicely 3-dimensional. It is a nice pinkish-tan color and contrasts well with the matrix. The specimen exhibits wonderful detail. This is a great crinoid from an unusual location.
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