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Qiaotouaspis qiaotouensis
Taxonomy
Qiaotouaspis qiaotouensis was named by Guo and An (1982). It is not extant. Its type locality is Benxi X (Xiaoyuhougou), unit 23, which is in a Duyunian marine horizon in the Mantou Formation of China. It is the type species of Qiaotouaspis.