Lyropora sp. #2
Bryozoan

Mississippian
Paint Creek Group
Ridenhower Formation
Vogel School site, near Floraville, Illinois

Lyropora sp.

This is an Extremely Large specimen

In life, fenestrate filled the opening between the "wings"
Reminds me of fenestrate attached to the screw-like axis
of the bryozoan Archimedes.

Reference

The bryozoan genera Lyropora and Lyroporidra
(order Fenestrida, family Polyporidae) in Upper Mississippian
(Chesterian) rocks of eastern North America.
American Museum novitates ; no. 3111
McKinney, Frank K. (Frank Kenneth)
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