Agnostida

Pagetia vinusta

Order Agnostida / Suborder Eodiscina / Superfamily Eodiscoidea / Family Eodiscidae

Cambrian, Miaolingian, WuliuanGuizhou

Pagetia vinusta — photo 1 — Photo 1 · Ontogenetic sequence reconstruction (Cui Holotype 21501 (Guizhou; Lu Yanhao et al. et al., 2019) 1974) Illustrated specimens NWU-FYPJ 202013-18 (Guizhou; Cui et al., 2019) Illustrated specimens GK1065 (Guizhou; Yuan Jinliang et al. 2002)

Pagetia vinusta — photo 2 — Photo 2 · Ontogenetic sequence reconstruction (Cui Holotype 21501 (Guizhou; Lu Yanhao et al. et al., 2019) 1974) Illustrated specimens NWU-FYPJ 202013-18 (Guizhou; Cui et al., 2019) Illustrated specimens GK1065 (Guizhou; Yuan Jinliang et al. 2002)

Pagetia vinusta — photo 3 — Photo 3 · Ontogenetic sequence reconstruction (Cui Holotype 21501 (Guizhou; Lu Yanhao et al. et al., 2019) 1974) Illustrated specimens NWU-FYPJ 202013-18 (Guizhou; Cui et al., 2019) Illustrated specimens GK1065 (Guizhou; Yuan Jinliang et al. 2002)

Pagetia vinusta — photo 4 — Photo 4 · Ontogenetic sequence reconstruction (Cui Holotype 21501 (Guizhou; Lu Yanhao et al. et al., 2019) 1974) Illustrated specimens NWU-FYPJ 202013-18 (Guizhou; Cui et al., 2019) Illustrated specimens GK1065 (Guizhou; Yuan Jinliang et al. 2002)

Classification

Order Agnostida / Suborder Eodiscina / Superfamily Eodiscoidea / Family Eodiscidae

Genus

Pagetia Walcott, 1916

Genus author

Walcott C. D.

Genus etymology

Surname Paget?

Species

P. vinusta Lu & Qian in Lu et al., 1974

Species author

Lu Yanhao, Qian Yiyuan

Species etymology

a misspelling of venusta (Latin, charming, elegant).

Age

Cambrian, Miaolingian, Wuliuan

Distribution

Guizhou

Synonyms

Pagetia bilobata; Pagetia venusta; Pagetia salva; Pagetia gaotaiensis; Pagetia dayongensis Pagetia taijiangensis; Pagetia miaobanpoensis

Diagnosis

Dorsal shield oval. Cephalon semicircular; anterior border broad, with several striae; anterior border furrow shallow and broad; glabella conical, with two pairs of weak crossing glabellar furrows; dorsal furrow deep; occipital spine large and prominent; Eyes small; eye ridges slender and long; free cheek narrow and small. Thorax with two segments; axis narrower than pleural region; pleural furrow shallow and broad; pleural spine small. Pygidium semicircular to semicircular-oval; pygidial axis inverted-conical, extending backward extending into a long pygidial spine; pleural region of pygidium smooth or with weak pleural furrows; border narrow; border furrow broad.

Remarks

Zhang Wentang et al. (1980) renamed it P. salva because the original name was preoccupied by the Siberian species P. venusta; in fact the original specific name was vinusta, which was not preoccupied, a point corrected by Cui et al. (2019).