Acernaspis sp. (Campbell 1967) ?
Pygidium. 13mm. Found on the Credit river the Caledon Hills, On., Canada. Silurian, Llandoveryium, Whirlpool Formation.
Photo Information
- Taken with Panasonic DMC-FS3
- Focal Length 5.5 mm
- Exposure Time 10/300
- f Aperture f/2.8
- ISO Speed 100
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