Graptolite "Pneumatocyst"
By oilshale
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Graptolite non det
"Pneumatocyst"
Silurian
Altmannsgrün
Saxonia
Germany
The pneumatocyst was interpreted by Ruedemann, 1895 as a flotation device and indication of a planktic life style of the graptolites.
Photo Information
- Taken with OLYMPUS IMAGING CORP. E-M5
- Focal Length 43 mm
- Exposure Time 1/15
- f Aperture f/6.0
- ISO Speed 200
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