Figure 7
Sternites of Arthroaspis bergstroemi n. gen. n. sp. A. MGUH 30410 (pt), ventral side of thorax, showing hourglass shaped sternites with sclerotized half-rings in adjacent arthrodial membrane of body-limb joints (ventral aspect, light from NE); B. MGUH 30392 ventral side of thorax and anterior pygidial region, showing sternites, body-limb joints and intersegmental tendon (ventral aspect). B 2 detail of internal sculpture of cuticle of pygidium, cf Figure 3A; note segmental boundaries in inner lamella (arrows).