Agnostida

Lejopyge armata

Order Agnostida / Suborder Agnostina / Superfamily Agnostoidea / Family Ptychagnostidae

Cambrian, Miaolingian Drumian to GuzhangianZhejiang, Hunan; Europe, North America, Australia
Lejopyge armata — photo 1
Photo 1 · Early illustrated specimens (Sweden; Westergård Reconstruction PMO 212.042-043, 211.947/2 (Norway; Høyberget et al., 2008) 1946) (drawn by Haixiang) (Zhejiang; StrongZJU) Complete dorsal shield (Zhejiang; Baishui) (Zhejiang; Tang Shi)
Lejopyge armata — photo 2
Photo 2 · Early illustrated specimens (Sweden; Westergård Reconstruction PMO 212.042-043, 211.947/2 (Norway; Høyberget et al., 2008) 1946) (drawn by Haixiang) (Zhejiang; StrongZJU) Complete dorsal shield (Zhejiang; Baishui) (Zhejiang; Tang Shi)
Lejopyge armata — photo 3
Photo 3 · Early illustrated specimens (Sweden; Westergård Reconstruction PMO 212.042-043, 211.947/2 (Norway; Høyberget et al., 2008) 1946) (drawn by Haixiang) (Zhejiang; StrongZJU) Complete dorsal shield (Zhejiang; Baishui) (Zhejiang; Tang Shi)
Lejopyge armata — photo 4
Photo 4 · Early illustrated specimens (Sweden; Westergård Reconstruction PMO 212.042-043, 211.947/2 (Norway; Høyberget et al., 2008) 1946) (drawn by Haixiang) (Zhejiang; StrongZJU) Complete dorsal shield (Zhejiang; Baishui) (Zhejiang; Tang Shi)
Lejopyge armata — photo 5
Photo 5 · Early illustrated specimens (Sweden; Westergård Reconstruction PMO 212.042-043, 211.947/2 (Norway; Høyberget et al., 2008) 1946) (drawn by Haixiang) (Zhejiang; StrongZJU) Complete dorsal shield (Zhejiang; Baishui) (Zhejiang; Tang Shi)
Lejopyge armata — photo 6
Photo 6 · Early illustrated specimens (Sweden; Westergård Reconstruction PMO 212.042-043, 211.947/2 (Norway; Høyberget et al., 2008) 1946) (drawn by Haixiang) (Zhejiang; StrongZJU) Complete dorsal shield (Zhejiang; Baishui) (Zhejiang; Tang Shi)
Classification
Order Agnostida / Suborder Agnostina / Superfamily Agnostoidea / Family Ptychagnostidae
Genus
Lejopyge Corda, 1847
Genus author
Hawle I. & Corda A. J. C.
Genus etymology
lej-, from lei (leios, Greek, smooth; early Latin had no letter j, represented by i); pyg-, Greek, tail
Species
L. armata (Linnarsson, 1869)
Species author
Linnarsson J. G. O.
Species etymology
armata, armed.
Age
Cambrian, Miaolingian Drumian to Guzhangian
Distribution
Zhejiang, Hunan; Europe, North America, Australia
Synonyms
Agnostus laevigata var. armata; Lejopyge laevigata armata; L. zhejiangensis
Diagnosis
Dorsal surface smooth. Cephalon nearly round, strongly convex; anterior part of glabella effaced, posterior part distinctly convex, with glabellar median node; basal lobe small, triangular; border furrow and border extremely narrow; Cephalic spine strong, of moderate length. Second thoracic segment with a relatively long extra spine. Pygidium slightly smaller than the cephalon; pygidial axis relatively narrow, with a very small node; border furrow distinct; border Widening backward, sloping downward between two marginal spines; Marginal spine relatively long.
Remarks
Typical body length about 0.2-1.2 cm.