Trilobita - Agnostida - Tsunyidiscidae

Full reference: W. T. Zhang, Y. H. Lu, Z. L. Zhu, Y. Y. Qian, H. L. Lin, Z. Zhou, S. Zhang and J. L. Yuan. 1980. Cambrian trilobite faunas of southwestern China. Palaeontologia Sinica, new series B 16:1-497

Belongs to Hupeidiscus according to Zhang 1980

Sister taxa: Tsunyidiscus aclis, Tsunyidiscus chintingshanensis, Tsunyidiscus niutitangensis, Tsunyidiscus pertenus, Tsunyidiscus tingi, Tsunyidiscus yanjiazhaiensis, Hupeidiscus kunshanensis

Ecology: slow-moving nektonic suspension feeder