Inter-taxa differences in extinction process of Maokouan (Middle Permian) fusulinaceans

Analyses of the extinction process of fusulinacean in the Maokouan (Middle Permian) biotic crisis have revealed remarkable differences between taxa wi th various morphological features. Nankinellinids suffered a heavy loss of species in the early stage of the Maokouan event. Schwagerinids and neoschw agerinids both showed a stepwise decrease in species diversity, but the pul ses of species extinction occurred in different stages of the extinction pr ocess. The species extinction of verbeekinids happened primarily in the Lat e Maokouan.