†Quandraspis Yang et al. 1993 (trilobite)
Trilobita - Ptychopariida - Lisaniidae
Full reference: J. Yang, S. Yu, G. Liu, N. Su, M. He, J. Shang, H. Zhang, H. Zhu, Y. Li and G. Yan. 1993. Cambrian stratigraphy, lithofacies, paleogeography and trilobite faunas of East Qinling-Dabashan Mountains, China 1-246
Parent taxon: Lisaniidae according to J. Yang et al. 1993
Sister taxa: Aojia, Dazhuia, Eoshengia, Extrania, Himalisania, Lisania, Lisaniella, Metalisania, Platylisania, Shengia, Xichuania
Subtaxa: Quandraspis shengwanensis
Type: Quandraspis shengwanensis
Ecology: fast-moving low-level epifaunal carnivore