The earliest pelagic jellyfish with rhopalia from Cambrian Chengjiang Lagerstätte Han, Jian ; Hu, Shixue ; Cartwright, Paulyn ; Zhao, Fangchen ; Ou, Qiang ; Kubota, Shin ; Wang, Xing ; Yang, Xiaoguang Abstract Publication: Palaeogeography Palaeoclimatology Palaeoecology Pub Date: May 2016 DOI: 10.1016/j.palaeo.2016.02.025 Bibcode: 2016PPP...449..166H