Phylloporina sublaxa uncommon Decorah formation Ordovician Minnesota Twin Cities. I tend to find them in pretty small pieces and obviously easily overlooked. Much more finer laces than Stictoporellina cribrosa.
Photo Information
- Taken with EASTMAN KODAK COMPANY KODAK DX7590 ZOOM DIGITAL CAMERA
- Focal Length 8.5 mm
- Exposure Time 1/8
- f Aperture f/3.0
- ISO Speed 140