Jinghediscus
Genus of trilobites
From Wikipedia, the free encyclopedia
Jinghediscus Xiang & Zhang, 1985 [1] is a genus of Eodiscinid trilobite belonging to the family Weymouthiidae Kobayashi T. (1943),[2] Order Agnostida (Salter 1864) [3] It lived during the lower Middle Cambrian, with remains found in China (Xinjiang) and Australia (Queensland).
| Jinghediscus Temporal range: | |
|---|---|
| |
| Jinghediscus nummularius | |
Scientific classification  | |
| Kingdom: | Animalia |
| Phylum: | Arthropoda |
| Clade: | †Artiopoda |
| Class: | †Trilobita (?) |
| Order: | †Agnostida |
| Family: | †Weymouthiidae |
| Genus: | †Jinghediscus Xiang & Zhang, 1985 |
| Species | |
| |
Species
Jinghediscus nummularius Xiang and Zhang, 1985.
Distribution
Description
Like all Weymouthiidae, Jinghediscus lacks eyes and facial sutures. Cephalon semi-elliptical. Glabella has one transglabellar furrow and inflated posterior lobe that widens towards rear. Preglabellar field broad (sag.) and confluent with uniformly wide (tr.) genal areas. Occipital ring (L0) ill-defined and without spine. cephalic border is only gently convex and of uniform width. Pygidium with strongly conical axis composed of ten axial rings; pleural fields smooth and defined from axis merely by a change in slope. Pygidial border broadens considerably towards rear and is wider (sag.) posteriorly than width (tr.) of the smooth pleural fields.[4]
