Bryozoan

Bryozoan (Archimedes sp. )

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	This fossil's shape inspired its name, Archimedes, after the Archimedes' screw. These organisms were very common in their time but went extinct in the Triassic. Polygon counts: Original 28,020; 28,020 before compression Time: Chesterian (Upper Mississippian) Locality: Vienna, IL Specimen: UCD Teaching Collection P-3445
Data scanning, postprocessing, and preparation of this web page by: Becky Wieczorek

This fossil's shape inspired its name, Archimedes, after the Archimedes' screw. These organisms were very common in their time but went extinct in the Triassic.

Polygon counts: Original 28,020; 28,020 before compression
Time: Chesterian (Upper Mississippian)
Locality: Vienna, IL
Specimen: UCD Teaching Collection P-3445