More than one thousand cranidia, librigenae, and pygidia of the trilobite Pagodia were collected from the Cambrian (upper Jiangshanian
through Stage 10) at Fenghuangshan in northern Anhui, China. They were identified as Pagodia lotos Walcott, 1905, Pagodia
depressa (Walcott, 1905), and Pagodia bia Walcott, 1905. Based on one rare nearly complete exoskeleton of P. depressa and comparisons
among the three species of Pagodia, the redefinition for those species is attempted as follows. Pagodia lotos: Glabella rectangular, slightly
convergent anteriorly; anterior border ridge-like, anterior border furrow deep; pygidium semicircular, axis tapered rearward, with 4 axial
rings and a terminal piece. P. depressa: Cranidium subquadrate, highly convex; glabella cylindrical, convergent anteriorly; pygidium
semicircular. P. bia: Glabella rectangular, constricted in the midlength; fixigena wide (tr.); anterior border very narrow (sag.) and
ridge-like; pygidium semicircular with wide borders; pygidial axis ended closer to the pygidial border furrow. We also discuss their
intraspecific variations, commonly seen on the exfoliated specimens: palpebral ridge evident or obliterated, the length (sag.) of anterior
area variable, the decoration of exoskeleton surface (with granules variable in size, convex or pitted).
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