HUGE Nautiloid?
The nautiloid Endoceras, found in Winnebago Co. in northern Illinois. It's most likely from the Galena or Platteville group (Ordovician period).
Photo Information
- Taken with Canon Canon PowerShot S5 IS
- Focal Length 6 mm
- Exposure Time 1/800
- f Aperture f/4.0
- ISO Speed 100
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