Lunataspis aurora

Lunataspis aurora

The holotype (MM I-4000A) from the Late Ordovicianaged (Hirnantian)?Churchill River Group from Canada was originally described as having reniform LCEs on both sides of the prosomal shield ( Rudkin et al., 2008). We corroborate this description and note that the LCE on the left side is more pronounced than the right ( Fig. 5D, E). The LCEs taper anteriorly towards a point and are located on a weakly developed ophthalmic ridge ( Rudkin et al., 2008). The eye is only slightly darker than the surrounding specimen. Lateral compound eyes on MM I-4000A ( Fig. 5D) are located 5 mm from the prosomal midline, 9 mm from the anterior, 5 mm from the posterior and 6 mm from the prosomal lateral boarders. The posterior eye section is pigmented and darker than the anterior ( Rudkin et al., 2008). There is no clear evidence of preserved ommatidia.