Supplementary material
Supplementary material 1: red-blue anaglyph of the right lateral view of the mandible. Note porous areas where silicification is incomplete and preservation can be seen to be a replacement of the cuticle, rather than coating or infill. Specimen OUMNH NT161 (See also Fig.4 e-f for details). (Photograph RC138a)
Supplementary material 2: red-blue anaglyph of the ventral view and anterior details of appendages. Note that the appendages have collapsed and are partially disorganised. Microbial filaments occupy the posterior margin of the right valve. Specimen OUMNH NT.157 (See also Fig. 3 h-j for details). (Photograph RCO502L1)
Supplementary material 3: red-blue anaglyph of the holotype carapace, ventral view. Specimen OUMNH NT.154 (See also Fig. 3 b for details). (Photograph RCO519_520)
Supplementary material 4: red-blue anaglyph of the holotype carapace, ventral view, showing the detail of the anterior appendages. Specimen OUMNH NT.154 (See also Fig. 3 c for details). (Photograph RCO523_522)
Supplementary material 5: red-blue anaglyph of a detached body and appendages, right lateral view. Note 1st, 2nd, 6th and 7th appendages are particularly well preserved. Specimen OUMNH NT.158 (See also Fig. 4 a for details). (Photograph RCOJ126a)
Supplementary material 6: red-blue anaglyph of detached body and appendages, left lateral view. Note the furca is well preserved on this specimen. Specimen OUMNH NT.159 (See also Fig. 4 b-c for details). (Photograph RCOJ129a)
Supplementary material 7: red-blue anaglyph of a carapace in oblique ventral view. Specimen OUMNH NT.155 (See also Fig. 4 e for details). (Photograph RCOJ1031)
Supplementary material 8: red-blue anaglyph of a carapace in oblique ventral view showing the detail of the anterior appendages. Specimen OUMNH NT.155 (See also Fig. 4 f for details). (Photograph RCOJ1091)
Supplementary material 9: red-blue anaglyph of detached appendages and body, right lateral view. Specimen OUMNH NT.161 (See also Fig. 4 e for details). (Photograph RCOJ1241)
Supplementary material 10: red-blue anaglyph of the anterior details of appendages in ventral view. Specimen OUMNH NT.157 (See also Fig. 3 j for details). (Photograph RCOJ1331)
Supplementary material 11: red-blue anaglyph of the anterior details of appendages in ventral view. Note the partially collapsed appendages and microbial filaments. Specimen OUMNH NT.157 (See also Fig. 3 h for details). (Photograph RCOJ1361)
Supplementary material 12: red-blue anaglyph showing the details of the 2nd antenna, mandible and maxilla, left lateral view. Specimen OUMNH NT.159 (See also Fig. 4 c for details). (Photograph RCQ149a)
Supplementary material 13: red-blue anaglyph of a detached body and appendages, left lateral view. Note the podomeres of the first antenna are especially well preserved. Specimen OUMNH NT.160 (See also Fig. 4 d for details). (Photograph RCQ152a)