Agnostida

Agnostus inexpectans

Order Agnostida / Suborder Agnostina / Superfamily Agnostoidea / Family Agnostidae

Cambrian, Miaolingian Guzhangian to Furongian PaibianZhejiang, Hunan; Canada, USA, Australia

Agnostus inexpectans — photo 1 — Photo 1 · One of the probable syntype specimens (Canada; UMUT) Reconstruction (Öpik (Australia; Öpik 1963) (USA; Schwimmer 2012) 1963) (Hunan; Peng Shanchi 2020) 3 mm (Zhejiang; Baishui) 6 mm (Hunan; Axi)

Agnostus inexpectans — photo 2 — Photo 2 · One of the probable syntype specimens (Canada; UMUT) Reconstruction (Öpik (Australia; Öpik 1963) (USA; Schwimmer 2012) 1963) (Hunan; Peng Shanchi 2020) 3 mm (Zhejiang; Baishui) 6 mm (Hunan; Axi)

Agnostus inexpectans — photo 3 — Photo 3 · One of the probable syntype specimens (Canada; UMUT) Reconstruction (Öpik (Australia; Öpik 1963) (USA; Schwimmer 2012) 1963) (Hunan; Peng Shanchi 2020) 3 mm (Zhejiang; Baishui) 6 mm (Hunan; Axi)

Agnostus inexpectans — photo 4 — Photo 4 · One of the probable syntype specimens (Canada; UMUT) Reconstruction (Öpik (Australia; Öpik 1963) (USA; Schwimmer 2012) 1963) (Hunan; Peng Shanchi 2020) 3 mm (Zhejiang; Baishui) 6 mm (Hunan; Axi)

Agnostus inexpectans — photo 5 — Photo 5 · One of the probable syntype specimens (Canada; UMUT) Reconstruction (Öpik (Australia; Öpik 1963) (USA; Schwimmer 2012) 1963) (Hunan; Peng Shanchi 2020) 3 mm (Zhejiang; Baishui) 6 mm (Hunan; Axi)

Agnostus inexpectans — photo 6 — Photo 6 · One of the probable syntype specimens (Canada; UMUT) Reconstruction (Öpik (Australia; Öpik 1963) (USA; Schwimmer 2012) 1963) (Hunan; Peng Shanchi 2020) 3 mm (Zhejiang; Baishui) 6 mm (Hunan; Axi)

Agnostus inexpectans — photo 7 — Photo 7 · One of the probable syntype specimens (Canada; UMUT) Reconstruction (Öpik (Australia; Öpik 1963) (USA; Schwimmer 2012) 1963) (Hunan; Peng Shanchi 2020) 3 mm (Zhejiang; Baishui) 6 mm (Hunan; Axi)

Classification

Order Agnostida / Suborder Agnostina / Superfamily Agnostoidea / Family Agnostidae

Genus

Agnostus Brongniart, 1822

Genus author

Brongniar A.

Genus etymology

agnost-, Greek, unknown

Species

A. inexpectans Kobayashi, 1938

Species author

Kobayashi T.

Species etymology

inexpect, unexpected

Age

Cambrian, Miaolingian Guzhangian to Furongian Paibian

Distribution

Zhejiang, Hunan; Canada, USA, Australia

Synonyms

Innitagnostus inexpectans

Diagnosis

Glabellar frontal lobe trapezoidal, anterior margin flat; F3 slightly undulating; glabellar posterior lobe longitudinally distinctly tripartite, middle part pestle-like raised, posterior end rounded; basal lobe small; preglabellar median furrow distinct and complete Pygidial axis with M1 distinctly tripartite; M2 narrower than M1, axial node crossing F2 onto the posterior axial ring; terminal end of posterior axial ring subacutely rounded; no postaxial median furrow; with a pair of posterolateral spines.