Corynexochida

Curvoryctocephalus taijiangensis

Order Corynexochida / Suborder Corynexochina / Family Oryctocephalidae / Family Oryctocephalinae

Cambrian, Miaolingian, WuliuanGuizhou

Curvoryctocephalus taijiangensis — photo 1 — Photo 1 · Complete dorsal shield Holotype GK6009 (Guizhou; Yuan Jinliang et al. 2002) (Guizhou; Baishui) Complete dorsal shield (Guizhou; Yuan Jinliang et al. (Guizhou; Lixia) 2002)

Curvoryctocephalus taijiangensis — photo 2 — Photo 2 · Complete dorsal shield Holotype GK6009 (Guizhou; Yuan Jinliang et al. 2002) (Guizhou; Baishui) Complete dorsal shield (Guizhou; Yuan Jinliang et al. (Guizhou; Lixia) 2002)

Curvoryctocephalus taijiangensis — photo 3 — Photo 3 · Complete dorsal shield Holotype GK6009 (Guizhou; Yuan Jinliang et al. 2002) (Guizhou; Baishui) Complete dorsal shield (Guizhou; Yuan Jinliang et al. (Guizhou; Lixia) 2002)

Curvoryctocephalus taijiangensis — photo 4 — Photo 4 · Complete dorsal shield Holotype GK6009 (Guizhou; Yuan Jinliang et al. 2002) (Guizhou; Baishui) Complete dorsal shield (Guizhou; Yuan Jinliang et al. (Guizhou; Lixia) 2002)

Curvoryctocephalus taijiangensis — photo 5 — Photo 5 · Complete dorsal shield Holotype GK6009 (Guizhou; Yuan Jinliang et al. 2002) (Guizhou; Baishui) Complete dorsal shield (Guizhou; Yuan Jinliang et al. (Guizhou; Lixia) 2002)

Curvoryctocephalus taijiangensis — photo 6 — Photo 6 · Complete dorsal shield Holotype GK6009 (Guizhou; Yuan Jinliang et al. 2002) (Guizhou; Baishui) Complete dorsal shield (Guizhou; Yuan Jinliang et al. (Guizhou; Lixia) 2002)

Classification

Order Corynexochida / Suborder Corynexochina / Family Oryctocephalidae / Family Oryctocephalinae

Genus

Curvoryctocephalus Zhao & Yuan in Yuan et al., 2002

Genus author

Zhao Yuanlong, Yuan Jinliang

Genus etymology

Curv(

Species

C. taijiangensis Zhao & Yuan in Yuan et al., 2002

Species author

Zhao Yuanlong, Yuan Jinliang

Species etymology

Taijiang, from Taijiang, Guizhou.

Age

Cambrian, Miaolingian, Wuliuan

Distribution

Guizhou

Synonyms

Curvoryctocephalus sinensis

Diagnosis

Opisthoparian micropygous trilobite. Glabella reaching the middle of the anterior border furrow, dorsal furrows undulating, anterior end flatly rounded, with a depressed notch medially; Four pairs of pit-like glabellar furrows, relatively deep longitudinal furrows connected, S1 connected by a shallow transverse furrow; palpebral lobe long, situated in the middle to posterior part of the cranidium; palpebral area of the fixed cheek broad, about two-thirds the width of the glabella, posterior limb short and narrow; free cheek with a broad-based rather long genal spine. Thorax of 9 segments, pleural spines of moderate length. Pygidium small; axis of 3 rings and 1 terminal piece; pygidial spines slender and long.

Remarks

This species is the type species of Curvoryctocephalus.