Abstract
The end-Permian mass extinction (EPME) led to a severe terrestrial ecosystem collapse. However, the ecological response of insects to the EPME remains poorly understood. Here, we report a new species assigned to Chauliodites, Chauliodites tongchuanensis sp. nov. (Grylloblattida: Chaulioditidae), from the Middle Triassic Tongchuan Formation of Shaanxi, northwestern China, and redescribe Chauliodites fuyuanensis (Lin, 1978) from the Lower Triassic Kayitou Formation of Yunnan and Chauliodites nanshenghuensis (Lin, 1978) comb. nov. from the Middle Triassic of Guizhou, southwestern China. Our results show that Chauliodites widely distributed after the EPME is probably related to the rise of isoetalean-dominated low-productivity terrestrial ecosystems.
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