Triassic Gastropods of the Southern Qinling Mountains, China

摘要

This is the first report of marine Triassic gastropods from the Qinlig Mountains,Gansu and Sichuan provinces, northwestern China. Forty-eight species in 27 genera are described, of which 14 species and one genus are new. This assemblage is the most abundant marine Triassic gastropod fauna yet uescribed from the northwestern China region and one of the most diverse Triassic gastropod faunas known worldwide. Triassic gastropods were first described from Middle and Upper Triassic rocks of the European Alps and neighboring areas during the mid-1800s.