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Name:
Archimedes sp.
Age: Mississippian
Formation: Warsaw Formation
Location: Adams County, Illinois
Size: Archimedes is 6.8 inches long
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Here is an excellent specimen of Archimedes sp. from the Mississippian of Illinois. This unusual, corkscrew-shaped bryozoan is quite unique - found only in the Mississippian Deposits of North America! This long colony of bryozoans is extremely 3-dimensional and has been prepared in high relief. The white fossil contrasts wonderfully with the greenish-grey matrix. The screw is beautifully showcased on the large, rounded plate of limestone. This is a very displayable example of this strange organism from Illinois.
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