Figure 7: Organic fragments showing cellular structure and Raman microspectroscopy.

(a) First-order Raman spectrum of the carbonaceous organic extracted by acid maceration: fragments with cellular structure (top), fragments without cellular structure (bottom). (b,d) Organic fragments with preserved cellular structure. (c,e), Polygonal cells forming a multi-layered network, c shows a detail of b, e shows a detail of d. Scale bars, 100 μm (in b,d), 20 μm (in c,e).