Geragnostus fengzuensis

Order Agnostida / Suborder Agnostina / Superfamily Agnostoidea / Family Metagnostidae

ger, from Greek geron-, old, old man; Agnostus, a trilobite genus name.

Fengzu, Fengzu Village, Jiangshan, Zhejiang, near the type locality.

Body surface smooth. Cephalon nearly square; glabella relatively long, anterior end rounded, sides parallel, glabellar transverse furrow weakly V-shaped, without median node; dorsal furrow narrow; basal lobe small, triangular; shaped; cheek slightly wider than the glabella; border narrower laterally; border furrow broad and flat. Thorax of two segments; axis broad; pleural lobes short, pleural tips curved forward. Pygidium nearly square; pygidial axis of three rings, about three-quarters of the pygidial length, terminal segment long; median node prominent, arising from the end of the first axial ring, extending to the front of the terminal segment; pleural region slightly narrower than the axis; border narrower laterally; border furrow broad and shallow; a pair of small pygidial spines on each side.

Typical body length about 0.2-1 cm.