Corynexochida

Cheiruroides shiqianensis

Order Corynexochida / Suborder Corynexochina / Family Oryctocephalidae / Family Cheiruroidinae

Cambrian, Series 2, Stage 4Guizhou

Cheiruroides shiqianensis — photo 1 — Photo 1 · Holotype Complete dorsal shield (Guizhou; Yumu)

Cheiruroides shiqianensis — photo 2 — Photo 2 · Holotype Complete dorsal shield (Guizhou; Yumu)

Classification

Order Corynexochida / Suborder Corynexochina / Family Oryctocephalidae / Family Cheiruroidinae

Genus

Cheiruroides Kobayashi, 1935

Genus author

Kobayashi T.

Genus etymology

cheirur-, Cheirurus, a trilobite genus name; -oides, resembling, like

Species

C. shiqianensis Yin in Yin & Lee, 1978

Species author

Yin Gongzheng

Species etymology

Shiqian

Age

Cambrian, Series 2, Stage 4

Distribution

Guizhou

Synonyms

Cheiruroides (Neocheiruroides) shiqianensis

Diagnosis

Very similar to C. primigenius, differing in having only three pairs of glabellar furrows, S1 broadly V-shaped, S2 unconnected or connected by a weak transverse furrow, a wider (transversely) and less curved cranidial outer border, and a thorax of 14 segments.