Fig. 8

Comparison with eye-bearing arthropods other than Polychelida: 2. Hexapoda, Pterygota from the Santana Formation, Brazil. a-d. Specimen of an undetermined heteropteran species with hexagonal facets. e-g. Specimen of an undetermined notonectid species with hexagonal facets. (a, b, c: use red-cyan stereo glasses)