LSCM images of foraminifera in FLEC sections. (A) Cross-section through sediment–water interface of type 1 stromatolitic mat showing cross-section through monothalamous foraminifer with a test composed of ooids. (B) Cross section through the sediment–water interface of a type 2 stromatolitic mat showing a rotalid calcareous foraminifera in cross-section. Note the abundant pennate diatoms (arrows) in the vicinity of the foraminifer as well as the tufted material extending above the substrate. (C) Calcareous foraminifer in cross-section along a bedding plane of type 1 stromatolitic mat 1.5 mm below the sediment–water interface. Note that the material adjacent to foraminifer is densely packed and bound, as are ooids below bedding plane. (D) Calcareous foraminifer (probably Planorbulina sp.) in tangential cross section in a thrombolitic mat. Note that foraminiferan had ingested pennate diatoms in multiple chambers (arrows). Specimen was 5 mm below the sediment–water interface. Number of images compiled (each with spacing of 1.38 µm) are as follows: a, n = 56; b, n = 44; c, n = 64; and d, n = 32. (Scale bars: 200 µm.)