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. 2015 Nov 9;59(1):89–108. doi: 10.1111/pala.12212

Figure 5.

Figure 5

Field and thin‐section comparison of reticulate miss at Loch Diabaig, Scotland. A, petrographic thin section of the reticulate miss in transmitted plain white light showing the original surface layer (SL) of the primary mat and scattered organic fragments (OF); notice the lack of aligned or in situ filamentous (sheath) remains, sample TOR11‐113. B, outcrop photograph of the reticulate miss sectioned in A, sample TOR11‐113, Camas a’ Chlársair (Balgy), Scotland. C, organic‐walled microfossil (Leiosphaeridia cf. L. crassa) preserved in the zone underlying the surface layer shown in A. D, close‐up of miss‐covered mud crack (c) indicated by the boxed outline in E, demonstrating that the infilled mud crack clearly crosscuts the reticulate miss surface, Diabaig type locality at Lower Diabaig, Scotland. E, polygonal mud cracks both crosscut (Fig. 5D) and are covered by (arrow) reticulate miss indicating that these sediments were subaerially exposed and dried out as cracks (c) opened up and were subsequently infilled with sand, type section of the Diabaig Formation, Lower Diabaig, Scotland. Scale bars represent 100 μm (A); c. 1 cm (B); 25 μm (C); 0.8 cm (D); and 5 cm (E). Colour online.