English: A drawing of Jinghediscus nummularius, a trilobite of the Agnostida order, Weymouthiidae family, lower Middle Cambrian (Xystridura Zone), Xinjiang, after holotype.
Cephalon and pygidium are drawn from separate photographs, as printed in the Treatise on Invertebrate Paleontology, Part O, Arthropoda 1, Revised, Trilobita, vol. 1 (1997). The relative size of these parts and the distance between them are best guesses by the artist, but not necessarily correct to life.
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