Agnostida

Corrugatagnostus morea

Order Agnostida / Suborder Agnostina / Superfamily Agnostoidea / Family Metagnostidae

Ordovician, Early Ordovician TremadocianUK, Czech Republic

Corrugatagnostus morea — photo 1 — Photo 1 · Holotype BGS8699 (UK; Whittington et al., 1997) Reconstruction (Barrande Reconstruction (Zhou Zhiyi 1872) 1987) Illustrated specimens, from left 0.6, 1.2, 1.5 cm (UK; Kennedy et al., 2018)

Corrugatagnostus morea — photo 2 — Photo 2 · Holotype BGS8699 (UK; Whittington et al., 1997) Reconstruction (Barrande Reconstruction (Zhou Zhiyi 1872) 1987) Illustrated specimens, from left 0.6, 1.2, 1.5 cm (UK; Kennedy et al., 2018)

Corrugatagnostus morea — photo 3 — Photo 3 · Holotype BGS8699 (UK; Whittington et al., 1997) Reconstruction (Barrande Reconstruction (Zhou Zhiyi 1872) 1987) Illustrated specimens, from left 0.6, 1.2, 1.5 cm (UK; Kennedy et al., 2018)

Corrugatagnostus morea — photo 4 — Photo 4 · Holotype BGS8699 (UK; Whittington et al., 1997) Reconstruction (Barrande Reconstruction (Zhou Zhiyi 1872) 1987) Illustrated specimens, from left 0.6, 1.2, 1.5 cm (UK; Kennedy et al., 2018)

Corrugatagnostus morea — photo 5 — Photo 5 · Holotype BGS8699 (UK; Whittington et al., 1997) Reconstruction (Barrande Reconstruction (Zhou Zhiyi 1872) 1987) Illustrated specimens, from left 0.6, 1.2, 1.5 cm (UK; Kennedy et al., 2018)

Corrugatagnostus morea — photo 6 — Photo 6 · Holotype BGS8699 (UK; Whittington et al., 1997) Reconstruction (Barrande Reconstruction (Zhou Zhiyi 1872) 1987) Illustrated specimens, from left 0.6, 1.2, 1.5 cm (UK; Kennedy et al., 2018)

Classification

Order Agnostida / Suborder Agnostina / Superfamily Agnostoidea / Family Metagnostidae

Genus

Corrugatagnostus Kobayashi, 1939

Genus author

Kobayashi T.

Genus etymology

corrugat-, Latin, wrinkled; Agnostus, a trilobite genus name.

Species

C. morea (Salter, 1864)

Species author

Salter J. W.

Species etymology

Unknown; presumably a place name or person/deity name.

Age

Ordovician, Early Ordovician Tremadocian

Distribution

UK, Czech Republic

Synonyms

Corrugatagnostus perrugatus

Diagnosis

Cephalon and pygidium both trapezoidal, cheek of cephalon and pleural region of pygidium with distinct radiating depressions. Glabella tapering forward, with elongate small node between two pairs of V-shaped transverse furrows. Thoracic axis distinctly tripartite. Pygidial axis about about half the pygidial length, divided into three rings, median node stout, crossing the first two rings.

Remarks

This species is the type species of Corrugatagnostus.