Corynexochida

Metabalangia yupingensis

Order Corynexochida / Suborder Corynexochina / Family Oryctocephalidae / Family Oryctocephalinae

Cambrian, Miaolingian, WuliuanGuizhou

Metabalangia yupingensis — photo 1 — Photo 1 · Holotype GYW40 (Guizhou; Peng Shanchi Figured specimen 2020) (Guizhou; Peng Shanchi 2020) Complete dorsal shield Complete dorsal shield (Guizhou; Baishui) (Guizhou; Guodong)

Metabalangia yupingensis — photo 2 — Photo 2 · Holotype GYW40 (Guizhou; Peng Shanchi Figured specimen 2020) (Guizhou; Peng Shanchi 2020) Complete dorsal shield Complete dorsal shield (Guizhou; Baishui) (Guizhou; Guodong)

Metabalangia yupingensis — photo 3 — Photo 3 · Holotype GYW40 (Guizhou; Peng Shanchi Figured specimen 2020) (Guizhou; Peng Shanchi 2020) Complete dorsal shield Complete dorsal shield (Guizhou; Baishui) (Guizhou; Guodong)

Metabalangia yupingensis — photo 4 — Photo 4 · Holotype GYW40 (Guizhou; Peng Shanchi Figured specimen 2020) (Guizhou; Peng Shanchi 2020) Complete dorsal shield Complete dorsal shield (Guizhou; Baishui) (Guizhou; Guodong)

Metabalangia yupingensis — photo 5 — Photo 5 · Holotype GYW40 (Guizhou; Peng Shanchi Figured specimen 2020) (Guizhou; Peng Shanchi 2020) Complete dorsal shield Complete dorsal shield (Guizhou; Baishui) (Guizhou; Guodong)

Classification

Order Corynexochida / Suborder Corynexochina / Family Oryctocephalidae / Family Oryctocephalinae

Genus

Metabalangia Qian & Yuan in Zhang et al., 1980

Genus author

Qian Yiyuan, Yuan Jinliang

Genus etymology

meta, Greek, after, behind; Balangia, a trilobite genus name

Species

M. yupingensis Qian & Yuan in Zhang et al., 1980

Species author

Qian Yiyuan, Yuan Jinliang

Species etymology

Yuping

Age

Cambrian, Miaolingian, Wuliuan

Distribution

Guizhou

Synonyms

Metabalangia transversa

Diagnosis

Small trilobite, opisthoparian, isopygous. Cranidium pentagonal; Glabella broadly oval, four pairs of short glabellar furrows, S1-S3 not connected to the dorsal furrow; Fixed cheek broad; Palpebral lobe and eye ridge subequal in length; Free cheek narrow, genal spines long. Thorax of 4 segments; Axis and pleural region subequal in width; Pleural furrow broad and deep, with articulating facets, pleural spines very short. Pygidium semicircular; Pygidial axis composed of four rings and a terminal segment; pleurae with pleural and interpleural furrows; pygidial border with five pairs of small serrated marginal spines.

Remarks

This species is the type species of Metabalangia.