Figure 3.

Tergite articulations of Arthroaspis bergstroemi n. gen. n. sp. A. MGUH 30400, specimen with cephalon and two articulated thoracic segments; A₁ (dorsal aspect); A₂ (ventral aspect); B. MGUH 30407 (pt), specimen with tergites tilted relative to each other, indicating tergite articulations interconnecting tergites along their entire width. Inner lamella is preserved (dorsal aspect); C. MGUH 30390 articulated thoracic tergites and appendages, tergites partially disarticulated (dorsal aspect); D. MGUH 30402 two adjacent tergites articulated at the half-rings only (ventral aspect); E. MGUH 30389, lateral gape of adjacent tergites, with narrow marginal rim on tergites and displaced distal lobe of exopod (dorsal aspect).