Redlichiida

Estaingia fangxianensis

Order Redlichiida / Suborder Redlichiina / Superfamily Ellipsocephaloidea / Family Estaingiidae

Cambrian, Series 2, Stage 3Hubei

Estaingia fangxianensis — photo 1 — Photo 1 · Holotype IV5506 (Hubei; Zhou Tianmei et al. Reconstruction (Zhang 1977) Wentang et al., 1980)

Estaingia fangxianensis — photo 2 — Photo 2 · Holotype IV5506 (Hubei; Zhou Tianmei et al. Reconstruction (Zhang 1977) Wentang et al., 1980)

Classification

Order Redlichiida / Suborder Redlichiina / Superfamily Ellipsocephaloidea / Family Estaingiidae

Genus

Estaingia Pocock, 1964

Genus author

Pocock K. J.

Genus etymology

Estaing, type speciestype locality, AustraliaCape D'Estaing

Species

E. fangxianensis (Sun in Zhou et al., 1977)

Species author

Sun Zhenhua

Species etymology

Fangxian

Age

Cambrian, Series 2, Stage 3

Distribution

Hubei

Synonyms

Hsuaspis fangxianensis; Zhuxiella fangxianensis

Diagnosis

Dorsal shield long. Cephalon roughly semicircular, intergenal angle distinct; cranidium roughly square; glabella convex, slightly constricted at midlength, pointed anteriorly, glabellar furrows indistinct; occipital furrow narrow; occipital ring moderately long medially; eye ridges gently raised, palpebral lobes short; preglabellar field long longitudinally; anterior border of moderate width, its front margin strongly arched forward; facial suture anterior branches diverging slightly outward, posterior branches directed backward and slightly outward; free cheek small, genal spine short and located anteriorly. Thorax of 13 segments; axis nearly as wide as the pleural lobes, the axial rings of segments 4 and 5 bearing nodes; pleural furrows broad and deep, pleural spines short. Pygid ium small; axis broad; pleurae with three pairs of pleural ribs, short pleural spines projecting from the outer margin.