Corynexochida

Shergoldiella vincenti

Order Corynexochida / Suborder Corynexochina / Family Oryctocephalidae / Family Oryctocarinae

Cambrian, Series 2, Stage 4Morocco

Shergoldiella vincenti — photo 1 — Photo 1 · Cambrian Stratigraphy; -ella, a diminutive suffix Holotype PIW 2006-I-01 (Morocco; Geyer 2006) Paratype

Shergoldiella vincenti — photo 2 — Photo 2 · Cambrian Stratigraphy; -ella, a diminutive suffix Holotype PIW 2006-I-01 (Morocco; Geyer 2006) Paratype

Shergoldiella vincenti — photo 3 — Photo 3 · Cambrian Stratigraphy; -ella, a diminutive suffix Holotype PIW 2006-I-01 (Morocco; Geyer 2006) Paratype

Classification

Order Corynexochida / Suborder Corynexochina / Family Oryctocephalidae / Family Oryctocarinae

Genus

Shergoldiella Geyer, 2006

Genus author

Geyer G.

Genus etymology

Honouring Dr J. H. Shergold, trilobite specialist and former chairman of the International Subcommission on

Species

S. vincenti Geyer, 2006

Species author

Geyer G.

Species etymology

Honouring Tony Vincent, who supplied part of the type material and collected important field data

Age

Cambrian, Series 2, Stage 4

Distribution

Morocco

Diagnosis

Cranidium subpentagonal; glabella long club-shaped, four pairs of pit-like glabellar furrows, not connected to the dorsal furrow; occipital furrow pit-like laterally; palpebral lobe small; eye ridge long; proparian facial suture; free cheek small, without genal spine. Thorax of 6-8 segments; axis straight, narrower than the pleurae; pleural furrows broad and deep, pleural spines short and small. Pygidium large; axis stout; pleural and interpleural furrows distinct; without pygidial border.

Remarks

This is the type species of Shergoldiella and the first oryctocephalid trilobite reported from Africa.