Guangweicaris is an extinct genus of fuxianhuiidarthropod known from the Cambrian period. It is only known from the type species Guangweicaris spinatus, which is known from the Cambrian Stage 4 Guanshan Biota near Kunming. It is currently the latest known fuxianhuiid. It was first described in 2007,[1] and was given a comprehensive re-description in 2020.[2] It is currently known from over 150 specimens. Within the fuxianhuiids it is sister to Fuxianhuia, together forming the clade Fuxianhuiidae. In comparison to Fuxianhuia it has a wide, oval shaped opisthothorax and a proportionally longer, narrow tail-like abdomen, with 3 prothoracic tergites, 5 opisthothoracic tergites and 7 abdominal tergites, it also possesses a row of spines running down the central axis of the body from the second opisthothoracic tergite.[2]
↑H.-L. Luo, X.-P. Fu, S.-X. Hu, Y. Li, S.-G. Hou, T. You, J.-Y. Pang and Q. Liu. 2007. A New Arthropod, Guangweicaris Luo, Fu et Hu gen. nov. from the Early Cambrian Guanshan Fauna, Kunming, China. Acta Geologica Sinica81:1-7
