Fig. 2

Blender models showing specimen’s shape and appendage details. a–f YKLP 11407. g, i–l YRCP 0011. h Hz-f-10-45. a  Dorsal habitus. b Ventral habitus, left side. c Close-up of appendages 1 and 2. d Close-up of appendage 3. e Close-up of appendage 5. All posteriorly following appendages are of the same shape. f Frontal habitus of specimen YKLP 11407. g Frontal habitus of specimen YRCP 0011. h Dorsal habitus. i Dorsal habitus. j Ventral habitus, left side. k Close-up of appendages 1 and 2 showing differentiated shape of the exopods. l Close-up of endopod 2 pictured as preserved in this specimen (compare Fig. 1b). Appendage numbers count as post-antennular appendages. Note that in a no segmental mismatch is pictured, giving nine tergites and nine pairs of appendages, in total 17 post-antennular appendage pairs. In h, i there are still seven tergites, with te7 as a diplotergite carrying two appendage pairs; 16 post-antennular appendage pairs in total. an, antennulae; as, antennular scale; ba, basipodite; bn, basal most antennular articles; db, dorsal bulges; ec, eye cavity; en, endopod; ex, exopod; ey, eye; he, head; hy, hypostome. Not designed to scale