Corynexochida

Oryctocephalops guizhouensis

Order Corynexochida / Suborder Corynexochina / Family Oryctocephalidae / Family Oryctocephalinae

Cambrian, Series 2, Stage 4Guizhou

Oryctocephalops guizhouensis — photo 1 — Photo 1 · Holotype GK1138 (Guizhou; Yuan Jinliang et al. (Guizhou; Yuan Jinliang et al. 2002) 2002) (Guizhou; Yuan Jinliang et al. 2002)

Oryctocephalops guizhouensis — photo 2 — Photo 2 · Holotype GK1138 (Guizhou; Yuan Jinliang et al. (Guizhou; Yuan Jinliang et al. 2002) 2002) (Guizhou; Yuan Jinliang et al. 2002)

Oryctocephalops guizhouensis — photo 3 — Photo 3 · Holotype GK1138 (Guizhou; Yuan Jinliang et al. (Guizhou; Yuan Jinliang et al. 2002) 2002) (Guizhou; Yuan Jinliang et al. 2002)

Classification

Order Corynexochida / Suborder Corynexochina / Family Oryctocephalidae / Family Oryctocephalinae

Genus

Oryctocephalops Lermontova, 1940

Genus author

Lermontova E. V.

Genus etymology

orycto-, Greek, digging; cephal-, Greek, head; -ops, opsi-, Greek, appearance, aspect

Species

O. guizhouensis Zhao & Yuan in Yuan et al., 2002

Species author

Zhao Yuanlong, Yuan Jinliang

Species etymology

Guizhou

Age

Cambrian, Series 2, Stage 4

Distribution

Guizhou

Diagnosis

Cephalon semicircular; cranidium trapezoidal; glabella club-shaped, sides slightly expanding forward, broadly rounded anteriorly, four pairs of glabellar furrows, S1 crossing the glabella; occipital ring longitudinally longer medially; palpebral lobe long; eye ridge Raised; Fixed cheek relatively broad; Free cheek of moderate width, genal spines relatively stout, of moderate length. Thorax of 11 segments; Axis narrower than pleural lobes; Pleural furrow narrow and deep, pleural spines of moderate length. Pygidium nearly rhomboidal; Pygidial short. Thorax of 10 segments. Pygidium with axis of 2 rings, bearing a postaxial ridge; two pairs of pygidial spines.