Hemicidaridae Wright, 1857
By ricardo
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Hemicidaridae, Wright, 1857. Camadas Ricas de Lamelibrânquios Formation, Upper Oxfordian- Lower kimmeridgian, Portugal.
6 mm
Photo Information
- Taken with Canon Canon EOS 550D
- Focal Length 50 mm
- Exposure Time 1/60
- f Aperture f/4.5
- ISO Speed 400
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