A fine complete dorsal exoskeleton, plus another almost complete dorsal exoskeleton together with a dorsal exoskeleton of Elrathia kingii (Meek, 1870) complete apart from free cheeks. From Utah, USA.
Size: 6mm by 5mm, 5mm by 3.5mm, 5.5mm by 4mm on block 25mm by 20mm
Size: 6mm by 5mm, 5mm by 3.5mm, 5.5mm by 4mm on block 25mm by 20mm