Ammagnostus wangcunensis

Order Agnostida / Suborder Agnostina / Superfamily Agnostoidea / Family Ammagnostidae

amm-, Greek, a knob; Agnostus, a trilobite genus name. The name is derived from the sand-grain-like

Wangcun, Wangcun Town, Yongshun, Hunan, now named Furong Town.

Cephalon subsquare; glabellar frontal lobe subsemicircular, anterior end rounded; F3 slightly curved backward; posterior lobe widening slightly backward, terminal end broadly rounded, median node short and weak; no median furrow in front of the glabella; border border furrow broad and deep. Pygidium subpentagonal; pygidial axis broad, axial node large; terminal end of posterior axial ring rounded or subacutely rounded, extending to the end of the inner lobe, with a small node opposite the posterolateral spines; border furrow broad and deep; border of moderate width, lateral spines in front of the end of the pygidial axis.

Typical body length about 0.2-1.2 cm.