Wednesday, May 5, 2021



Section through a fragment of a large fenestrate bryozoan. These critters made stony skeletons resembling wire mesh. The lozenge-shaped linked light areas are cuts through seven successive "wires" of the skeleton. This fossil is embedded in a microbial reef; scale at bottom is 0.2 millimeters. These bryozoans were most common in warm shallow marine water.Mississippian, North Alabama.


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