English: A drawing of Tsunyidiscus niutitangensis, a trilobite of the Agnostida order, Tsunyidiscidae family, found in the Lower Cambrian of Guizhou, China (Shuijingtuo Formation, near Zhun Yi City). After the photograph printed in the Treatise on Invertebrate Paleontology, Part O, Arthropoda 1, Revised, Trilobita, vol. 1 (1997), figure 242.
The photograph that the drawing is bases upon does not show the librigenae, but these have been drawn in analogy to other photographs of specimen of the same genus. The remains of the three segments are rather eroded, so there representation may not be accurate.
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