Fossil Bryozoans

Photo of fossil bryozoans, lacy type

Paleozoic bryozoans are well represented in Missouri's fossils. These three limestone rocks show the exoskeletons of fenestellate or "lacy" forms, common from Silurian through Pennsylvanian periods. These were probably saltwater species. (Average size of these fossils is about 1-2 inches.) Other common bryozoan fossils resemble screws.

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