Fig.1 A new ionoscopiform, Robustichthys luopingensis, from the Anisian (242–247 million years ago), Middle Triassic marine deposits of Luoping, eastern Yunnan Province of China , and life reconstruction . (Image by XU Guang-Hui and WU Feixiang)

Fig.2. Phylogenetic relationships of Robustichthys luopingensis within Neopterygii, and maps illustrating geographical distribution of Ionoscopiformes in three different geological epochs. (Image by XU Guang-Hui)