Conulariid sp.
Here is a nice Conulariid from the Late Ordovician Maquoketa Formation of Southeast Minnesota. This one is interesting because it exhibits thick shell material and is fully inflated which is quite uncommon for this area.
Photo Information
- Taken with OLYMPUS IMAGING CORP. D595Z,C500Z
- Focal Length 6.3 mm
- Exposure Time 10/300
- f Aperture f/2.8
- ISO Speed 74
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