Asaphida

Pararemopleurides shaanxiensis

Order Asaphida / Superfamily Remopleuridioidea / Family Remopleurididae

Sandbian to Katian (Late Ordovician)Shaanxi

Pararemopleurides shaanxiensis — photo 1 — Photo 1 · Liwen Liwen Cranidium, holotype NIGP150877 (Shaanxi; photograph courtesy Hypostome (Shaanxi; photograph of Prof. Zhou Zhiqiang) courtesy of Prof. Zhou Zhiqiang) Pygidium specimen (Shaanxi; photograph courtesy of Prof. Zhou Zhiqiang)

Pararemopleurides shaanxiensis — photo 2 — Photo 2 · Liwen Liwen Cranidium, holotype NIGP150877 (Shaanxi; photograph courtesy Hypostome (Shaanxi; photograph of Prof. Zhou Zhiqiang) courtesy of Prof. Zhou Zhiqiang) Pygidium specimen (Shaanxi; photograph courtesy of Prof. Zhou Zhiqiang)

Pararemopleurides shaanxiensis — photo 3 — Photo 3 · Liwen Liwen Cranidium, holotype NIGP150877 (Shaanxi; photograph courtesy Hypostome (Shaanxi; photograph of Prof. Zhou Zhiqiang) courtesy of Prof. Zhou Zhiqiang) Pygidium specimen (Shaanxi; photograph courtesy of Prof. Zhou Zhiqiang)

Classification

Order Asaphida / Superfamily Remopleuridioidea / Family Remopleurididae

Genus

Pararemopleurides Zhou, Zhou & Xiang, 2016

Genus author

Zhou Zhiqiang, Zhou Zhiyi, Xiang

Genus etymology

para, Greek, near, beside, similar to; Remopleurides, a trilobite genus name

Species

P. shaanxiensis Zhou, Zhou & Xiang, 2016

Species author

Zhou Zhiqiang, Zhou Zhiyi, Xiang

Species etymology

Shaanxi, Shaanxi Province

Age

Sandbian to Katian (Late Ordovician)

Distribution

Shaanxi

Diagnosis

Cranidium somewhat long; glabella strongly convex, surface with fine dense nodes, main area sub-elliptical, anterior tongue very wide, slightly constricted forward with rounded, strongly bent downward front, three pairs of smooth glabellar furrows; anterior border absent; occipital furrow deep, nearly straight; occipital ring of uniform width; occipital node very small; palpebral lobes narrow, widening posteriorly. Pygidium long, surface with faint wavy lineations; pygidial axis short and wide; articulating half-ring furrow distinct, slightly arched forward medially; a pair of shallow notches at the posterolateral parts of the axis, a deeper notch at the centre of the posterior end, followed by a low weak postaxial ridge; pleural region behind the axis very wide with shallow pleural furrows, two pairs of faint pleural segments extending obliquely backward as two pairs of wide flat sickle-shaped pygidial spines.