Figure 8. Olenid trilobite, Upper Cambrian Alum Shale, Närke, Sweden. SMNH Ar59484. 8.1. No enhancement; virtual light normal to bedding. 8.2. No enhancement; extrapolated PTM space; virtual light from +NW. 8.3. No enhancement; extrapolated PTM space; virtual light from +S. 8.4. Specular enhancement; virtual light from NW.

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QuickTime version 4.6MB
QuickTime version, low resolution 1.3MB
PTM file 2MB (where to get and how to use the PTM Viewer)