Asaphida

Proceratopyge (Sinoproceratopyge) kiangshanensis

Order Asaphida / Superfamily Asaphoidea / Family Ceratopygidae

Jiangshanian (Furongian, Cambrian)Zhejiang, Hunan

Proceratopyge (Sinoproceratopyge) kiangshanensis — photo 1 — Photo 1 · pro-, before, forward; Ceratopyge, a trilobite genus name; sin-, Greek, China Type specimen (Zhejiang; Lu Yanhao et al. Complete dorsal exoskeleton and cephalon-pygidium 1974) figures (Zhejiang; Peng 2020) Complete dorsal exoskeleton Complete dorsal exoskeleton (Zhejiang; Baishui) (Hunan; Tangshi)

Proceratopyge (Sinoproceratopyge) kiangshanensis — photo 2 — Photo 2 · pro-, before, forward; Ceratopyge, a trilobite genus name; sin-, Greek, China Type specimen (Zhejiang; Lu Yanhao et al. Complete dorsal exoskeleton and cephalon-pygidium 1974) figures (Zhejiang; Peng 2020) Complete dorsal exoskeleton Complete dorsal exoskeleton (Zhejiang; Baishui) (Hunan; Tangshi)

Proceratopyge (Sinoproceratopyge) kiangshanensis — photo 3 — Photo 3 · pro-, before, forward; Ceratopyge, a trilobite genus name; sin-, Greek, China Type specimen (Zhejiang; Lu Yanhao et al. Complete dorsal exoskeleton and cephalon-pygidium 1974) figures (Zhejiang; Peng 2020) Complete dorsal exoskeleton Complete dorsal exoskeleton (Zhejiang; Baishui) (Hunan; Tangshi)

Proceratopyge (Sinoproceratopyge) kiangshanensis — photo 4 — Photo 4 · pro-, before, forward; Ceratopyge, a trilobite genus name; sin-, Greek, China Type specimen (Zhejiang; Lu Yanhao et al. Complete dorsal exoskeleton and cephalon-pygidium 1974) figures (Zhejiang; Peng 2020) Complete dorsal exoskeleton Complete dorsal exoskeleton (Zhejiang; Baishui) (Hunan; Tangshi)

Classification

Order Asaphida / Superfamily Asaphoidea / Family Ceratopygidae

Genus

Proceratopyge, subgenus Sinoproceratopyge (Proceratopyge

Genus author

Lu Yanhao & Lin Huanling

Genus etymology

(Sinoproceratopyge))

Species

P. (S.) kiangshanensis Lu in Lu & Chien, 1964

Species author

Lu Yanhao

Species etymology

kiangshanensis, Jiangshan, Zhejiang, type locality of the type specimens

Age

Jiangshanian (Furongian, Cambrian)

Distribution

Zhejiang, Hunan

Synonyms

Proceratopyge kiangshanensis

Diagnosis

Cranidium wide, length less than the width of the anterior cranidial margin; glabella with parallel sides and 4 pairs of glabellar furrows; anterior border extremely narrow, upturned, nearly horizontal; anterior branches of facial sutures making a 45-degree angle with the axis; eye ridges short and distinct; palpebral lobes large, at the transverse midline of the cranidium; fixigenae about half the glabellar width; librigenae and anterior wings with radiating irregular fine ridges, genal spines short and small. Thorax of 9 segments, pleurae wide. Pygidial axis with 6-7 rings and a terminal piece, reaching the posterior border posteriorly; border wide and slightly concave; lateral spines rather short and small.

Remarks

This species is the type species of the subgenus Proceratopyge (Sinoproceratopyge).