Calyptaulax callicephalus (Hall 1847) & Thaleops sp. (Conrad 1843)
By Ludwigia
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13x10cm. Hash Plate with trilobite parts. From the JD Quarry at Gamebridge, On., Canada. Verulam Formation, Katian, Upper Ordovician.
Photo Information
- Taken with Panasonic DMC-FS3
- Focal Length 5.5 mm
- Exposure Time 10/10000
- f Aperture f/2.8
- ISO Speed 100
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