Figure 13. Gogiids (OSU 52611) with organic preservation of soft parts from the Balang Formation. (a) The entire specimen with nine gogiid individuals (numbered). (b) Close-ups of the group of five individuals, each of which contains a black region in the centre of the theca. A fragment of (b) was analysed under SEM/EDX for chemical composition (see Fig. 12a, c–e). (c) Interpretive drawing of the gogiids (nos 4–8) illustrated in (b) with organic soft-parts (indicated by the dotted polygons). Scale bars = 20 mm (a); 10 mm (b, c).