Corynexochida

Chiawangella pustulosa

Order Corynexochida / Suborder Leiostegiina / Superfamily Leiostegioidea / Family Leiostegiidae

Guzhangian (Miaolingian, Cambrian)Jiangsu, Shandong

Chiawangella pustulosa — photo 1 — Photo 1 · Pygidium and probable Type specimen (Jiangsu; Peng 2020) librigena specimens (Shandong; Baishui) Dorsally and ventrally compressed pygidia (Linyi, Shandong; Yadong)

Chiawangella pustulosa — photo 2 — Photo 2 · Pygidium and probable Type specimen (Jiangsu; Peng 2020) librigena specimens (Shandong; Baishui) Dorsally and ventrally compressed pygidia (Linyi, Shandong; Yadong)

Chiawangella pustulosa — photo 3 — Photo 3 · Pygidium and probable Type specimen (Jiangsu; Peng 2020) librigena specimens (Shandong; Baishui) Dorsally and ventrally compressed pygidia (Linyi, Shandong; Yadong)

Chiawangella pustulosa — photo 4 — Photo 4 · Pygidium and probable Type specimen (Jiangsu; Peng 2020) librigena specimens (Shandong; Baishui) Dorsally and ventrally compressed pygidia (Linyi, Shandong; Yadong)

Chiawangella pustulosa — photo 5 — Photo 5 · Pygidium and probable Type specimen (Jiangsu; Peng 2020) librigena specimens (Shandong; Baishui) Dorsally and ventrally compressed pygidia (Linyi, Shandong; Yadong)

Classification

Order Corynexochida / Suborder Leiostegiina / Superfamily Leiostegioidea / Family Leiostegiidae

Genus

Chiawangella Chu, 1959

Genus author

Zhu Zhaoling

Genus etymology

Chiawang, the type locality in the Jiawang coalfield of Jiangsu; -ella, a diminutive adjectival suffix

Species

C. pustulosa Chu, 1959

Species author

Zhu Zhaoling

Species etymology

pustul-, Latin, pustule, node, referring to the verrucose surface of the pygidium, especially the axis

Age

Guzhangian (Miaolingian, Cambrian)

Distribution

Jiangsu, Shandong

Diagnosis

Only pygidia have been published to date. Pygidium surface finely punctate; axis large, inverted-conical, rounded and strongly convex posteriorly, divided into four axial rings and a terminal piece; dorsal furrow deep; pleural narrow, extending into a pair of large, long lateral spines; posterior border wide and flat, inverted-trapezoidal, bearing a pair of slender short spines at the sides, posterior margin straight.