Figure 2

Cephalon and anterior trunk of Arthroaspis bergstroemi n. gen. n. sp. A. MGUH 30411 specimen with cephalon and fully articulated thorax. Potential muscle preservation (dorsal aspect); B. MGUH 30414 impression of doublure margin and prehypostomal sclerite (ventral aspect); C. MGUH 30405 doublure with terrace lines on left anterolateral margin of cephalon (ventral aspect, orientation WNW); D. MGUH 30398 marginal rim and fingerprint-like cuticular sculpture on left anterolateral margin of cephalon (dorsal aspect, orientation ENE); E. MGUH 30388 disarticulated cephalon with strong compactional folds. For abbreviations see Table 1 (dorsal aspect).