Fig. 9 in Dimerelloid brachiopod Dzieduszyckia from Famennian hydrocarbon seep deposits of Slaven Chert, Nevada, USA, with insights into systematics and paleoecology of the Dimerelloidea

Fig. 9. Preservation (in situ) of brachiopods within massive to bedded barite blocks at Clipper Mine (Famennian, Nevada). A. Details of preservation showing costae and internal features such as the septalium and septum in sample above the scale bar. B. Typical block with dense, subparallel accumulation as seen by molds.