Extreme posterior from a large genus. Note the striations at the foot of the crown, and no nutrient groove.
Photo Information
- Taken with Apple iPhone SE (1st generation)
- Focal Length 4.2 mm
- Exposure Time 1/60
- f Aperture f/2.2
- ISO Speed 25
By ThePhysicist
Extreme posterior from a large genus. Note the striations at the foot of the crown, and no nutrient groove.
By Archaeocyath,
By Moritz,
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