Xenacanthid denticles
The "sharks" that swam the rivers and lakes of the Early Permian wouldn't be fun to pet!
Photo Information
- Taken with Apple iPhone SE (2nd generation)
- Focal Length 4 mm
- Exposure Time 1/110
- f Aperture f/1.8
- ISO Speed 80
By ThePhysicist
The "sharks" that swam the rivers and lakes of the Early Permian wouldn't be fun to pet!
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