Figure 5
From: Exceptional appendage and soft-tissue preservation in a Middle Triassic horseshoe crab from SW China
Interpretive drawings of selected specimens showing well preserved book gills, muscles, and setae. (A) LPI-31945, (B), LPI-40709. The following abbreviations are used: bg, book gills; fp, faecal pellets; fs, fixed spine; gop, gill opecula; lm, lamellae; mf, muscle fibre; ms, movable spines; op, opisthosoma; opc: genital operculum; pr, prosoma;?ps,?pusher; st, setae; ts, telson. Dash line in (A) indicates possible place of hinge line. Scale bars: 10 mm in (A); 5 mm in (B).
