Fig. 3 in Ordovician opabiniid-like animals and the role of the proboscis in euarthropod head evolution

Fig. 3 | Details of proboscis of Mieridduryn bonniae nov. gen. et sp. (NMW.2021.3 G.7) under different lighting conditions. a S8 microscope, cross-polarised light, stitched images, with contrast increased. b M125 microscope under high angle light. an annulation, sp spine.