Corynexochida

Oryctocephalites convexus

Order Corynexochida / Suborder Corynexochina / Family Oryctocephalidae / Family Oryctocephalinae

Cambrian, Miaolingian, WuliuanGuizhou

Oryctocephalites convexus — photo 1 — Photo 1 · to Holotype NIGP 38274 (Guizhou; Peng Shanchi 2020) (Guizhou; Peng Shanchi (Guizhou; Peng Shanchi 2020) 2020)

Oryctocephalites convexus — photo 2 — Photo 2 · to Holotype NIGP 38274 (Guizhou; Peng Shanchi 2020) (Guizhou; Peng Shanchi (Guizhou; Peng Shanchi 2020) 2020)

Oryctocephalites convexus — photo 3 — Photo 3 · to Holotype NIGP 38274 (Guizhou; Peng Shanchi 2020) (Guizhou; Peng Shanchi (Guizhou; Peng Shanchi 2020) 2020)

Classification

Order Corynexochida / Suborder Corynexochina / Family Oryctocephalidae / Family Oryctocephalinae

Genus

Oryctocephalites Resser, 1939

Genus author

Resser C. E

Genus etymology

Oryctocephal-, from Oryctocephalus, a trilobite genus name; -ites, a noun suffix meaning similar to or related

Species

O. convexus (Chien & Yuan in Yin & Lee, 1978)

Species author

Qian Yiyuan, Yuan Jinliang

Species etymology

convexus, convex

Age

Cambrian, Miaolingian, Wuliuan

Distribution

Guizhou

Synonyms

Oryctocephaloides convexus; Oryctocephaloides elongatus; Oryctocephaloides nangaoensis Oryctocephalina

Diagnosis

Glabella oval and convex, anterior end flatly rounded, three pairs of glabellar furrows, S1 nearly transverse, S2 and S3 shallow; Facial suture opisthoparian; Palpebral lobe long; Eye ridge distinct; Ocular area of fixed cheek narrow; Free cheek extremely narrow, genal spine slender and of moderate length. Thorax of 9 segments; axis slightly narrower than the pleural regions; pleural furrows deep, pleural spines small. Pygidium small and subtriangular; axis of 3 rings; with three pairs of pleural spines.