By Tetradium
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Vinlandostrophia extensa Decorah formation. Rare. I includes a specimen of Pionodema subaequata and Rhynchotrema ainslei for compare - the costae is much larger and more coarse. For a Vinlandostrophia it doesn't have wings.
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Brachiopods of Platteville/Decorah Twin Cities Minnesota
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Photo Information for 100_9087
Taken with EASTMAN KODAK COMPANY KODAK DX7590 ZOOM DIGITAL CAMERA
- 11.5 mm
- 1/40
- f f/3.2
- ISO 100
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