Fig. 7 in Brachiopod fauna from uppermost Visean (Mississippian) mud mounds in Derbyshire, UK

Fig. 7. Density maps in ternary diagrams showing percentages of brachiopod biovolume for the three different ecological groups (seminfaunal productides; pedicle-attached rhynchonellides, spiriferides, and terebratulides; pedicle-attached/free-living orthotetides, orthides, spiriferides, and spiriferinides with adaptation to softgrounds), calculated for FA1 (A), FA2 (B) and some collected assemblages with more than 20 specimens from FA1 (A) and FA2 (B) (see Table 2). Diagrams plotted with PAST software (Hammer et al. 2001). Abbreviations: BIP, biovolume of seminfaunal productides; BP, biovolume of pedicle attached rhynchonellides, spiriferides, and terebratulides (low to high efficiency); BPA, biovolume of pedicle attached/free living orthotetides, orthides, spiriferides, spiriferinides (low to high efficiency).