Asaphida

Hedinaspis brevis

Order Asaphida / Superfamily Asaphoidea / Family Ceratopygidae

Stage 10 (Furongian, Cambrian)Xinjiang, Inner Mongolia

Hedinaspis brevis — photo 1 — Photo 1 · aspis, Greek, shield. Holotype GSXU XTR-157 (Xinjiang; Peng 2020) Literature specimens (upper: Xinjiang, lower: Inner Mongolia; Peng 2020) Complete dorsal exoskeleton, part and counterpart (Xinjiang; Guapi)

Hedinaspis brevis — photo 2 — Photo 2 · aspis, Greek, shield. Holotype GSXU XTR-157 (Xinjiang; Peng 2020) Literature specimens (upper: Xinjiang, lower: Inner Mongolia; Peng 2020) Complete dorsal exoskeleton, part and counterpart (Xinjiang; Guapi)

Hedinaspis brevis — photo 3 — Photo 3 · aspis, Greek, shield. Holotype GSXU XTR-157 (Xinjiang; Peng 2020) Literature specimens (upper: Xinjiang, lower: Inner Mongolia; Peng 2020) Complete dorsal exoskeleton, part and counterpart (Xinjiang; Guapi)

Hedinaspis brevis — photo 4 — Photo 4 · aspis, Greek, shield. Holotype GSXU XTR-157 (Xinjiang; Peng 2020) Literature specimens (upper: Xinjiang, lower: Inner Mongolia; Peng 2020) Complete dorsal exoskeleton, part and counterpart (Xinjiang; Guapi)

Classification

Order Asaphida / Superfamily Asaphoidea / Family Ceratopygidae

Genus

Hedinaspis Troedsson, 1951

Genus author

Troedsson G. T.

Genus etymology

Hedin, a surname, in honour of the famous Swedish explorer Sven Hedin, an early researcher of Xinjiang;

Species

H. brevis Zhang, 1981

Species author

Zhang Tairong

Species etymology

brevi-, Latin, short, referring to the short, wide glabella

Age

Stage 10 (Furongian, Cambrian)

Distribution

Xinjiang, Inner Mongolia

Synonyms

Hedinaspis brevica

Diagnosis

Glabella short and wide, slightly constricted forward, base not distinctly expanded; 4 pairs of glabellar furrows not connected to the dorsal furrows; occipital furrow not connected to the dorsal furrows; anterior border narrow; palpebral lobes small and stout; eye ridges rather fine. Thorax of 28 segments; axis slender and long; pleural lobes straight, pleural spines short. Pygidium short and small, fish-tail-shaped.

Remarks

The specific name was originally spelled brevica by Zhang Tairong (1981); Peng Shanchi (2020) emended it to brevis following Latin formation rules.