File:41598 2017 11610 Fig3 HTML.webp

English: Glypharthrus trispinicaudatus sp. nov. from the Jiangshanian (Furongian) Sandu Formation, Guole area, Guangxi, South China. All specimens are in dorsal view with anterior facing to the top. (a,b,d,e) NIGPAS 165042 (holotype), part and counterpart of an almost complete, articulated dorsal exoskeleton, photographed immersed in dilute ethanol. (a,d,e) counterpart (mostly an external mould). (a) general view. (d,e) detail of posterior trunk region, showing pretelsonic segment bearing a pair of furcal rami (small arrows) and a spiniform telson (large arrow). (b) part (dorsal exoskeleton; mirrored). (c,f) NIGPAS 165043, almost complete, largely articulated dorsal exoskeleton, photographed dry. (c) general view. (f) detail of cephalon showing the eye abutting the glabellar region (small arrow) and merging with the rest of the exoskeleton anteriomedially (large arrow), and the pitted surface. (g,h,i) NIGPAS 165044, part and counterpart of an almost complete, largely articulated dorsal exoskeleton, photographed dry (g,i) or immersed under dilute ethanol (h). (g) counterpart (mirrored). (h) part, detail of T7, showing the articulating ridge separating the articulating platform (arrow) from the posterior part of the tergite. (i) part, general view.