English: The fossils of E. praecursor of the collection of the York Museum (YM 993-996). Concretion bearing four individuals and several remains of additional individuals. A) Part. The individuals YM 993 and YM 996 are three-dimensionally preserved. YM 993 with a large part of its pleon (ple). YM 994 and YM 995 are just impressions. Individual YM 993 shows the merus (m), carpus (ca), propodus (pro), and dactylus (da) of the achelate 2nd and 3rd pereopods (p2, p3) on the right side. On the left, there are remains of a chela (ch?) of unclear affinity. It could be the smashed left chela of YM 996 that lies underneath the left 2nd pereopod (p2) of YM 993 (compare with B). The left 3rd pereopod (p3) of YM 996 shows the same morphology as that of YM 993. YM 996 possesses two basal parts of the peduncle of its right 2nd antenna (a2) (see Fig. 5A′). B) Counterpart with individuals YM 994 and YM 995 in three-dimensional preservation. The same is true for the right chela of YM 993 (ch) and the right chela of YM 996 (ch). YM 994 possesses the most complete pleon (ple), which is much wider than that of YM 993. The putative left chela (or part of it) of YM 996 (ch?) lies on top of the merus of the left 2nd pereopod (p2) of YM 993 (compare with Fig. 5I). The putative merus of the left 5th pereopod (p5?) of YM 994, and the merus of the left 3rd and 4th pereopods of YM 993 are visible. Scale bar: 20 mm.